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DLS-5800 v2.1 User Manual

1. Load the file M_LOAD_FILE Set the gain M_NOISE_GAIN Generate the sample M_GENERATE_SAMPLE Load the output buffer but do not turn on the output M_LOAD_OUTPUT_BUFFER of the noise generator 8 Specify the burst duration in milliseconds M_NOISEBURST_DURATION To generate single bursts Trigger the burst M_NOISEBURST_TRIGGER aN mM e OR 9 To generate repeated bursts Specify an optional delay in seconds before the first burst M_NOISEBURST_DELAY Specify the number of bursts to generate M_NOISEBURST_REPEATS Specify the interval in seconds between burst triggers M_NOISEBURST_INTERVAL Start bursts M_NOISEBURST_STARTTEST Spirent Communications PN 71 006581 Page 85 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Note If you need to stop the burst test before it is finished use M_NOISEBURST_STOPTEST Command M_LOAD_OUTPUT_BUFFER Description Loads the output buffer of the noise generator without turning on the output This is used after you generate the sample and replaces the M_LOAD_OUTPUT command that is used in regular non burst noise applications Telnet example STX SET M_LOAD_OUTPUT_BUFFER ETX Command M_NOISEBURST_DURATION Description Sets the duration of the noise burst in milliseconds Range 10 to 10000 ms Telnet example STX SET M_NOISEBURST_DURATION VAL 50 ETX IMPORTANT Although the command will accept steps of 1 ms the measured results actually showed increments of
2. 2 13 2 IP Address Setup The DLS 5800 unit can be used as a stand alone PC or as part of a network configuration 2 14 DLS 5800 in a Stand Alone System When you operate the DLS 5800 unit as a non networked stand alone system default configuration use the settings provided in this section to ensure maximum performance For maximum performance the PC s TCP IP properties should be set to obtain a static IP address as shown To obtain a static IP address Spirent Communications PN 71 006581 Page 24 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide e Select Control Panel gt Network gt Configuration e Select TCP IP from the list e Click on Properties e Select the IP Address tab e Click the Specify an IP address button Note In the following steps the specified IP Address and Subnet Mask field entries should only be used when the computer is not connected to a network e Inthe IP Address field enter 192 168 0 1 e In the Subnet Mask field enter 255 255 255 0 2 15 DLS 5800 as part of a Network When you connect the DLS 5800 computer to a network the settings above must be changed either to obtain a dynamic IP address or to an assigned static IP address Your Network Administrator can tell you which settings to use To specify IP addresses statically e Select Control Panel gt Network gt Configuration e Select TCP IP from the list e Click on Properties e Select the IP Address tab e Click the Specify a
3. 7 5 3 Putting it all Together Beginning of the script First we need to open the socket and create a connection In your main TCL script do the following TCL Code change the next line to the IP address of your DLS 5800 set ip aa bb cc dd change the next line to the correct port you have set in the DLS 5800 defaults are 2001 2002 2003 for the master and multi session mode slave sessions set port 2001 Open ip port Spirent Communications PN 71 006581 Page 109 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 7 5 4 Putting it all Together Ending the script At the end of the TCL script your program should close the socket TCL Code Close 7 6 Report Strings Report CMD_SUCCEEDED Description The message has been accepted and processing was successful Report CHANNEL_x_SELECTED Description The selected output is channel x where x is 1 24 Report LEVEL_TOO_HIGH Description Power level of combined crosstalk exceeds maximum output power level Report PACKAGE_MANAGER_ERROR Description Package manager error Load file not executed Report CREST_FACTOR_UNATTAINED Description The resulting crest factor is less than 5 even after attempting 5 recalculations Report RFLINVALID_LICENSE Description Invalid license for RFI 7 7 Error Strings Error BAD_PARAMETER_ID Description Invalid task or parameter identifier in message Error BUSY Description Busy operating
4. fileevent _sock_desc readable Disable fileevent until set again fileevent _sock_desc readable poll until read line or timed out while line set line read _sock_desc update Spirent Communications PN 71 006581 Page 105 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide wait for variable line to change vwait line if line 1 Timeout Occured set line Timeout set result Connection timed out else received message disable timer after cancel time_id if _verbose on puts Received line return line 7 5 2 3 Open TCL code proc Open ip port global _sock_desc Check for valid args if ip amp amp port check if already connected Spirent Communications PN 71 006581 Page 106 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide if IsConnected perror Dls_5800_Connect Already Connected set _sock_desc socket ip port if eof _sock_desc perror Dls_5800_Connect Cannot establish connection to ip on port port else fconfigure _sock_desc blocking 0 buffering line translation auto puts Dls_5800_Connect Successful return _sock_desc perror Dls_5800_Connect Invalid number of parameters 7 5 2 4 IsConnected TCL code proc IsConnected global _sock_desc if _sock_desc return 0 return 1 Spirent Communications P
5. Description Adjusts the power level of the currently generated noise Parameter dB value range For frequency domain noises 3 0 to 9 0 Spirent Communications PN 71 006581 Page 75 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide For time domain noise 3 0 to 7 0 Telnet example STX SET M_MICRO_GAIN VAL 4 2 ETX Command M_CREST_FACTOR Description Enables or disables crest factor checking for xtalk noise Value string ON OFF Telnet example STX SET M_CREST_FACTOR VAL ON ETX Command M_NUMBER_SAMPLES Description Sets the number of samples to use for frequency domain noises Valid Values Powers of 2 ranging from 32768 to 4194304 Telnet example STX SET M_NUMBER_SAMPLES VAL 32768 ETX Command M_TD_WHITENOISE Description Enables or disables time domain white noise Value string ON OFF Telnet example STX SET M_TD_WHITENOISE VAL ON ETX Command M_IMPULSE_RATE Description Sets the number of pulses per second for impulse noise when not used with time domain noise Range 1 100 pps pulses per second Telnet example STX SET M_IMPULSE_RATE VAL 30 ETX Command M_CLEARWORKSPACE Description Clears any loaded files from the workspace Telnet example STX SET M_CLEARWORKSPACE ETX Spirent Communications PN 71 006581 Page 76 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Command M_RESET_ CHANNEL Description Clears the loaded files in
6. FAILURE_BOTH_XTALK_AND_RFI NOT_SELECTED Description A command was received which applies to RFI or XTALK but neither is active Error FAILURE_OUTPUT_SIGNAL_TOO_HIGH Description The output signal in dB is higher than maximum allowed value Error FAILURE_TD_NOISE_ NOT_COMPATIBLE_WITH_IMPULSE Description Attempt to combine Time Domain with Impulse but the sample frequency is different Error HARDWARE _ FAILURE Description Disable output channel failed Error FAILURE_BASE_ OF POWER_IS_NOT_TWO Description An invalid value used for a power of two parameter Valid values are powers of 2 ranging between 32768 and 4194304 Error MICROGAIN_IS_NOT_ADJUSTABLE Description A noise profile must be loaded to the hardware before the microgain can be adjusted Error UNABLE_TO_APPLY_IMPULSE_RATE Description A time domain noise type has been selected for which rate pps values cannot be set Error UNABLE_TO_APPLY_IMPULSE_NOT_SELECTED Description A noise type has been selected that is not compatible with impulse noise Error VALUE_IS_ OUT_RANGE Description Impulse parameter was not between 1 and 100 pps rate Error FAILURE SAVE _CUSTOM_NOISE Description Custom noise file save sequence is incorrect Spirent Communications PN 71 006581 Page 112 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Error CUSTOMNOISE_NOT_SELECTED Description Custom noise not enabled or selected Error FAILURE _LOAD_CUST
7. write_socket STX SET M_LOAD_FILE VAL lt filename gt ETX read_socket set a gain value write_socket STX SET M_NOISE_GAIN VAL lt noise level gt ETX read_socket generate the sample write_socket STX SET M_GENERATE_SAMPLE ETX read_socket load to the AWG output buffer but do not start generating signal write_socket STX SET M_LOAD_OUTPUT_BUFFER ETX read_socket set the noise burst duration in milliseconds write_socket STX SET M_NOISEBURST_DURATION VAL 50 ETX read_socket trigger a single noise burst write_socket STX SET M_NOISEBURST_TRIGGER ETX read_socket 7 4 3 Noise Burst multiple burst script Note Replace lt filename gt and lt noise level gt with appropriate values if not using DLS 5410DC comment the next 2 lines which turn on Channel 1 of the DLS 5410DC write_socket STX SET M_INJ_CHAN1_STATE VAL 1 ETX read_socket Spirent Communications PN 71 006581 Page 92 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide if using DLS 5410DC change 0 to 1 if you want common mode if not using DLS 5410DC comment the next 2 lines which set Channel 1 into differential mode write_socket STX SET M_INJ_CHAN1_MODE VAL 0 ETX read_socket select channel 1 write_socket STX SET M_SELECT_OUTPUT VAL OUTPUT_1 ETX read_socket reset the current channel write_socket STX SET M_RESET_CHANNEL ETX read_socket
8. 10 ms The value is rounded to the next largest multiple In other words entering 10 ms will give 10 ms duration entering 11 ms will give 20 ms duration Command M_NOISEBURST_TRIGGER Description Generates a single noise burst with the programmed duration Telnet example STX SET M_NOISEBURST_TRIGGER ETX Command M_NOISEBURST_REPEATS Description Sets the number of times to repeat noise bursts when the test is started Range 1 to 60000 bursts Telnet example STX SET M_NOISEBURST_REPEATS VAL 5000 ETX Command M_NOISEBURST_INTERVAL Description Sets the interval between bursts in seconds Range 1 to 300 seconds in 1 second steps Telnet example STX SET M_NOISEBURST_INTERVAL VAL 1 ETX Spirent Communications PN 71 006581 Page 86 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Important The interval between bursts refers to how often the burst is triggered and does not account for the duration of the burst You need to ensure that the interval is greater than the burst duration Command M_NOISEBURST_DELAY Description Sets the delay between receiving the M_NOISEBURST_STARTTEST command and the first burst Subsequent bursts are generated at the interval specified by M_NOISEBURST_INTERVAL Range to 10 seconds in 1 second steps Telnet example STX SET M_NOISEBURST_DELAY VAL 2 ETX Command M_NOISEBURST_STARTTEST Description Starts the Noise Burst test This will cause the programmed number of noise b
9. 2 3 DLS 5410DC Front Panel The DLS 5410DC front panel components are as follows e Rack mount brackets e USB port to be used for control by DLS 5800 e Power LED indicates that the unit is powered up e Remote LED indicates that the unit is remotely controlled e DUT ports RJ45 at Side A and Side B to connect to the devices under test at each end of the test loop e WIRELINE ports RJ45 at Side A and Side B to connect to the two sides of the wireline simulator e Ground GND connectors 2 7 Rear Panel DLS 5410DC and Connections Protective Ground Lug DC Power Inlet Cooling Fan eccoocoooocooooe CH4 CH3 CH2 OWER 000000090009000 ooooooooooooo 3 i ceo0eooeooo0oo 090000000000000 oooo0o0000000000 Side B z di 00000000000000 Figure 2 4 DLS 5410DC Rear Panel The DLS 5410DC rear panel components are as follows e DC Power Inlet to connect to the power supply DLS 5P02 which is provided as an accessory to DLS 5410DC e Ground Lug to be connected to the protective Earth e BNC female CH1 to CH4 for the 4 input channels of the injector for Side A e BNC female CH1 to CH4 for the 4 input channels of the injector for Side B 2 8 DLS 5409 Connections DLS 5409 has one BNC female jack for its input and one RJ 45 female jack for its output The RJ45 output is designed to be fed into an external splitter to which the DUT and wireline are connected Spirent Communications PN 71 006581 Page 20 of 128 DLS 58
10. 213 1 Local Area Network Connections isisssssinpsnenscan o E 24 213 2 IPAddress SeUD soie E E EE EEA EErEE 24 2 14 DLS 5800 in a Stand Alone System ssessessesseseseseessesresreserestesstseessresstesrestensetseesreestesreseeesee 24 2 15 DLS 5800 as part of a Network eesssesssesessessssrssrsressrtssrseresresstsrrssresstssrestenseeseesreeseeseseeeses 25 2 16 Controlling other Spirent Devices x s2ccpcsscagssasnecardgoeusennseesvasduaions aseudaapaseaaedagsesnesuoteueioadscdeads 25 Chapters DLS 5800 Control Software scicsciciiccccnsfuteconadeisincn cieineunncheiinesidetnnnebdsanaxatunceniteeeanes 26 Sede WOM COU sinisiraan ei ane E AAE E E a EEEE a S aE Eaa Eein 27 3 2 Overview of the DLS 5800 Software Features esseesseseeseesersseeressersrerrrsserstsrresressrsereeresseseese 27 33 Jnstalling the ay A soneran e E vs elec E E E ae tere eceets 28 3 4 Launching and Exiting the DLS 5800 Control Software eesesseesseeseseesesrssereresressrsererresseseess 29 3 3 Inj ctor COMMS UTA OT Didog s sscu insastuieslnnsaawaninnvenensnascmaaneidaantadgnnsabentacasgesitaarasustedswenwantentsnaseneates 29 3 6 Quick Start Generating a Noise Sample ssseseseseseseeessseesssessesssessssessseessresseesseesssessseesseese 30 3 7 Control Software Window Layout esssseeseessessessesssesresseserssressessesrreestestestenstestenresreseseresressese 31 Spirent Communications PN 71 006581 Page 3 of 128 DLS 5800 DLS 5410DC DLS 5409 User G
11. 5800 DLS 5410DC DLS 5409 User Guide 3 7 1 3 Calibration Impedance Noise files are calibrated and measured using different load impedance values which are outlined in the various xDSL standards To identify which calibration impedance should be selected refer to the relevant xDSL standard The DLS 5800 allows you to select one of three calibration impedance values using the Calibration Impedance drop down list 100 Ohms 135 Ohms ETSI Load Note The DLS 5800 allows just one calibration impedance value to be specified per channel ETSI complex impedance noise files can only be combined with other ETSI complex impedance noise types Ei Noise Attribute Editing ITU T_G dmt_A4DSL_Up_Next_Loop1 3000ft_xtk dat m t i 3 A 600 1200 1800 Frequency kHz Properties Reference Level 50 3 dBm Offset fo dB relative to Reference Level Level 50 3 dBm Disturbers f 0 OK Cancel 3 7 1 4 Edit Click Editto modify various parameters of the currently selected noise file You can edit noise levels or disturber quantity either by double clicking on the appropriate row of the combiner window or by selecting a table entry and clicking the Editbutton When you click the Edit button the Noise Attribute Editing window appears e Reference Level the value displayed identifies the calculated power level for a specified noise file and is considered to be the 0 dB reference level using a specified load Spirent Co
12. 5800 DLS 5410DC DLS 5409 User Guide Error INJECTOR_NOT_ACCESSIBLE_FROM_THIS_SESSION Description The injector that the remote script is trying to access is owned by another session 7 8 For DLS 5200 DLS 5204 DLS 5500 users 10 For the most part scripts that will work on older Spirent Communications noise generators will work on DLS 5800 However as necessitated by hardware architecture changes there are a few commands that will have to be removed from your older scripts You will also need to add commands to control the DLS 5410DC injector for example to select the channel coupling mode and to turn on the output The following commands are not supported by DLS 5800 Obsolete Command M_SAMPLE_FREQ M_INJ_CONNECT M_INJ_DISCONNECT M_TD_NOISE_GAIN M_RFILMUTE M_XTALK_MUTE RFILMUTE XTALK_MUTE M_IMPULSE_MUTE M_TD_NOISE_MUTE M_LOAD_XTALK_FILE LOAD_RFI_FILE LOAD_XTALK_FILE M_LOAD_TD_FILE M_LOAD_CUSTOM_FILE RFI_GAIN Spirent Communications PN 71 006581 Replacement action None Sample rate is defined in file header None Connection is done automatically on software startup None Disconnection is done automatically on software shutdown Use M_NOISE_GAIN M_NOISE_GAINEX or M_MICRO_GAIN See command set documentation to help determine which to use None None None None None None M_LOAD_FILE M_LOAD_FILE M_LOAD_FILE M_LOAD_FILE M_LOAD_FILE Use M_NOISE_GAIN M_NOISE_GAINEX or Page 115
13. 6 4 Header Information eta S ssp se cescocetascosstasenicvnessececesecaceuieedsiecntinc EE Ri arai a 65 6 4 1 Relative Amplitude for Each Sample tance ted isc dech sce sats ceteedeuedad ssa cadeenduentl date eeendciadeaseaiedes 66 6 4 2 Number of Samples In the File ccteccsec cscs ices ccsssechedetes Ueudecse pate ta eticessibabededhliu ideeh haced Saal eadciaces 66 64 3 M ximum M mory SIA vesser iisi resyn narini aeni ae iien aaia riia a eaesnentes 66 6 4 4 Output Scaling And Injector Loss oeesseeeseeeseeeeseeeseeeesseesseesseesseeesseeesseesseresessseeessseessrest 66 6 4 5 Maximum Level and Overload Conditions seeesesseesesereseesesrtssrseresressreeresressrsereerenseseees 66 64 6 Calc lation of RMS nseiissenrceitsiiisrstesen eais neie ene aa deck aed celle asain 67 OAS COmyertine to dBm from Volts ssc ciation cceivsercnteuaeadeteciadesieniandeieddiecstregenteedsenecditeenaees 67 64 8 File CST Oca acca teeni a a a a aN a a Eaa aS 67 60 49 Text File Editorsin uosio ni nee RE a Eae EE eaS anaE EEA SEEEN 68 6 44 10 Total File Length cisisssiisiericiinrei nesnesi naisessa niisiis ies nae is areik 68 Chapter 7 Remote Control ecicccdescsicscannesienectesssmmesienndeeuienedenanndecenedenedendnbbiasnncetdumenaiideasseoadeombediees 69 TL Developing a Remote Controlle seermossnenaninio eerste et aA E 70 7 2 Inter Process Communications soca feces techecescieresenaeeueetasdedestsclecsdatiuetessachdenedaadeenelasbeesicdaesasidle 71 7
14. DVD 7 Follow the on screen prompts You may also need to re install the DLS 5410DC driver When you connect the DLS 5410DC Noise Injector via USB and switch it on for the 1 time if the Windows Found New Hardware wizard appears follow the prompts and direct it to look in C Program Files Spirent Communications DLS 5800 DLS 5410 Driver You may need to repeat this for all connected DLS 5410DC injectors Spirent Communications PN 71 006581 Page 28 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide NOTE For systems that use more than 1 DLS 5410DC injector the software identifies the DLS 5410DC units by serial number The DLS 5410DC unit with the lowest serial number is always considered unit 1 the next lowest is unit 2 and the highest serial number is unit 3 This is important because the DLS 5410DC injector unit ordinal 1 2 or 3 determines which generator channels are associated with the injector and the software assumes that the physical connections are done appropriately In other words injector unit 1 has the lowest serial number and it must be connected to channels 8 of the DLS 5800 noise generator Injector 2 has the 2 lowest serial number and must connect to channels 9 16 Injector 3 has the highest serial number and must connect to channels 17 24 3 4 Launching and Exiting the DLS 5800 Control Software Before starting the DLS 5800 Control Software if you are using DLS 5410DC ensure that all D
15. M_SYNCSTART This command receives a single parameter which is a bit mapped value which specifies which channels should be switched on Measured results using a 3 8 GHz P4 based system were on the order of 80 160 nS per channel with most results around 160 nS per channel But there were a couple of aberrations which showed results around 80 84 nS In other words 2 adjacent channels i e channels 1 and 2 started at the same time show a 160 nS delay between the 2 channels If the channels are not adjacent the results show 160 nS for each channel between So Channels and 3 1 channel between would be 320 nS and Channels 1 and 4 2 channels between show 480 nS 7 3 6 1 Using Synchronized Start To use Synchronized Start you need to first load the output buffers for all channels you wish to use Use the M_LOAD_OUTPUT_BUFFER for this Command M_ SYNCSTART Description Start 1 to 4 channels in rapid sequence Valid Values 24 Bit bit mapped value representing channels from 24 to 1 from left to right Le bits 23 22 21 20 19 18 17 16 15 141312111098 76543210 chan 24 23 22 21 20 19 18 17 16 15 14 13 12 1110987654321 Telnet examples ISTX SET M_ SYNCSTART VAL 15 ETX This example will turn on all 4 channels on card 1 ISTX SET M_ SYNCSTART VAL 3 ETX This example will turn on channels 1 and 2 on card 1 ISTX SET M_ SYNCSTART VAL 240 ETX This example will turn on all channels on card 2 Note that all affected c
16. Range 1 60000 Telnet example STX SET M_INJ1_INTERRUPT_LENGTH_A VAL 1 ETX Command M_INJ lt n gt _INTERRUPT_LENGTH_B Function Set Side B Micro Interrupt length Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number Spirent Communications PN 71 006581 Page 82 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide of injectors present Parameter Side B micro interrupt length in mS Range 1 60000 Telnet example STX SET M_INJ1_INTERRUPT_LENGTH_B VAL 1 ETX Command M_INJ lt n gt _INTERRUPT_EVERY Function Set the Repetition Rate for Micro Interrupts Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Parameter Repeat rate in seconds Range 1 60000 Telnet example STX SET M_INJ1_INTERRUPT_EVERY VAL 1 ETX Command M_INJ lt n gt _INTERRUPT_SIDE Function Set the side at which Micro Interrupts are generated Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Parameter Side index Range 1 Side A 2 Side B Telnet example STX SET M_INJ1_INTERRUPT_SIDE VAL 1 ETX Command M_INJ lt n gt _INTERRUPT_TOTAL Function Set the total number of Micro Interrupts Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Parameter Total number of micro in
17. Spirent Communications Access Emulation as the standards progress Other xDSL noise file CD DVDs are available for purchase for these products Please contact your local sales representative for details Spirent Communications Access Emulation reserves the right to offer additional and different noise profiles in the future as separately packaged offerings compatible with the DLS 5800 8 2 System Specifications e PC with minimum 2 GB RAM hard disk drive minimum 6 USB ports and CD DVD drive e Arbitrary Waveform Generator and Storage e Pre installed software a Windows XP b DLS 5800 Control Software c Sample ADSL and VDSL Noise Profiles included 8 3 Mechanical and Environmental Specifications Rear Connectors Noise DLS 5800 BNC 4 outputs per card DLS 5410 8 BNC Inputs card Interface RS232 standard 6 USB ports Control DLS 5800 Ethernet DLS 5410DC USB DLS 5409 None Printer Standard PC printer connector Item Description Mouse USB interface Monitor Standard VGA connector Power World wide standard universal power supply Spirent Communications Supplied PC compatible 101 QWERTY keyboard PC compatible mouse User Supplied or Spirent Communications Options PC compatible color VGA compatible monitor SVGA and XVGA supported PC compatible printer Spirent Communications PN 71 006581 Page 118 of 128 Spirent Communications Dimensions with rack mounting brackets mounted Net Weight Environmental Ope
18. ccccccccccscssssscscsssceceeeeeeeeeeeeeeaeeeseaeaeeeaeaeseaeaeaeaneeanees 52 4 4 Description of the Noise Profile Pile Porm j0 cccsegeniexiestenesuataucel dousseduacuedetdaguecsd negates eaesnesssquedadds 53 Chapter5 Ingress Noise Profiles Optional eeeeecceecceeeeeeeeeeeeeeeaeeeeeeeeeeeeeseeeeeeeeeeeees 55 5b Inti ducton EPR eras terete ter EP tre eer Dr PPE a a rrr err eer a a aa a aaae is 56 5 2 Definition of the RFI Tones in Ingress NOs 8s weicescdssaseccedacdtvadlntvcunsiantadetasadcsdacneceectenddcneraaiudecaeped 56 5 3 Description of the RFI Noise Profile File DLS 5B36 Format eeesessesseeeeseesesrsseseresressrssresressereres 57 5 4 Accuracy Limits f the AWG os isseiissiississcinieis nease ceoiie sinens needki saieaiag a iaaii taia iaae ienai 59 5 5 Reference Ingress Noise Profile escisiones o aa esenea i aaen eSEE s 59 5 6 DLS 5B36 RFI Modulation Method sesseseeeseesesseessessessrssresressessrssresstesrertesserssesesstesrseresressesee 60 5 6 1 Practical Modulation Left And Right Sidebands With 10 Lines Total eee 60 Chapter6 Time Domain Noise Profiles si assiccsscuanscisnesssesssasnncdinbeusnekanexduntenenineanndaenandedennnededneas 62 GL MM EO I soo E EEE E A 63 60 2 Prncipl sof A erat oo see ccna sexe testa cic casaceocounceancpeonciuedevceecanan cave veaae tenia tanceecedeesenutetenuenantee 63 6 3 Description of the Time Domain Profile File Format eee eeeseesseeeseeeseeeeseeceaeenseeseeeeeaees 64
19. from 1024 to 65535 For instructions on enabling remote access on the DLS 5800 see Remote Control Launch your remote controller application Your application should Connect to the unit using TCP IP port range 1024 65535 Spirent Communications PN 71 006581 Page 71 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Send the desired messages and wait for replies When ready to relinquish remote control close the client socket Do NOT issue a SET DISABLE_REMOTE message it will prevent subsequent access to the DLS 5800 remote control capabilities for all remote controllers There is no way to remotely re enable remote control Some commands are channel specific commands and are applied to the most recently selected channel It is therefore a good idea to select the channel as the first step The messages that follow apply to the selected channel Once the channel has been selected a typical sequence of operation to produce an output is as follows Load a noise file Set all the necessary parameters Generate the sample Load the output Enable the output or outputs as desired Switch on the corresponding injector channel 7 2 4 Using Telnet Client The remote commands can be sent by means of a Telnet client Both character mode input and line mode input are accepted It is recommended that the Telnet client be configured in line mode 7 3 Remote Commands Note that in this section channel ranges shown are for
20. has 2 modes local and remote Remote mode allows the DLS 5800 to be controlled from a remote computer For a detailed explanation of remote control see Remote Control Note The DLS 5800 must be in remote mode before sending remote commands to the unit Remote mode can operate in one of two ways Single session operation means that only one session or instance of the software runs and all the generator and injector channels are available to that session Multiple session operation launches more than 1 session of the software The number of sessions depends on your DLS 5800 DLS 5410DC hardware configuration A new session of software is created for each DLS 5410DC Noise Injector that is connected Thus if your DLS 5800 contains 16 channels you need 2 DLS 5410 injectors and multiple session mode creates 2 sessions If your DLS 5800 contains 24 channels you need 3 DLS 5410 injectors and multiple session mode creates 3 sessions Session 1 will control channels 1 to 8 session 2 will control channels 9 16 and session 3 will control channels 17 24 Note that if your DLS 5800 configuration contains 8 channels multiple session mode is not supported as there is only 1 DLS 5410 Noise Injector To use the remote control mode first configure the DLS 5800 via System Properties Then select System System Mode to choose Remote mode and later return to Local mode Note that if you are running Multiple session remote mode you can ret
21. load a noise file write_socket STX SET M_LOAD_FILE VAL lt filename gt ETX read_socket set a gain value write_socket STX SET M_NOISE_GAIN VAL lt noise level gt ETX read_socket generate the sample write_socket STX SET M_GENERATE_SAMPLE ETX read_socket load to the AWG output buffer but do not start generating signal write_socket STX SET M_LOAD_OUTPUT_BUFFER ETX read_socket set the noise burst duration in milliseconds write_socket STX SET M_NOISEBURST_DURATION VAL 50 ETX read_socket Spirent Communications PN 71 006581 Page 93 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide set the number of times to repeat the noise burst write_socket STX SET M_NOISEBURST_REPEATS VAL 50 ETX read_socket set how often to repeat the burst in seconds write_socket STX SET M_NOISEBURST_INTERVAL VAL 2 ETX read_socket set the delay between receiving the start command and the actual start of burst generation write_socket STX SET M_NOISEBURST_DELAY VAL 2 ETX read_socket start generation of noise bursts write_socket STX SET M_NOISEBURST_STARTTEST ETX read_socket 7 4 4 Synchronized Start Sample Script Fragment Modify this to use your IP address appropriate noise files and channels HEHEHE HEHEHEHEH MAIN Scipt HEH HHH HH EE HEHEHEHEH Modify this to your IP address set ip 10 20 2 44 local set ip 127 0 0 1 HEH HHH HEE HEHHEHE set port 2001 set noise
22. lt begin gt 300000 10 1 100 name lt Format_Example_Modulation_rfi gt standard lt DLS 5B36 gt ver lt 1 0 gt clk lt 100 MHz gt clic lt gt depth lt 0 31 gt power lt 5 4 dBm gt data lt begin gt 1000000 10 2000000 12 3000000 13 4000000 14 20000000 20 1 100 PN 71 006581 Page 58 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide If ETSI load compensation 100 Q is required the fifth line of the above file can be modified from clic gt to clic lt ETSI1000hm cle gt Note e The last line of the above file 1 100 will be regarded the same as 1 50 e When the modulation depth is applied the depth value will be the maximum value for each carrier that is 0 31 If the depth is set to be 0 such as depth lt 0 gt then all the carriers will be single tones at the level indicated beside the frequency User is able to see the displayed power level in the GUI the output total power e For the purpose of obtaining good quality modulation width close to 5 KHz each side Spirent suggests using the largest possible number of samples the software may warn if insufficient samples are used 5 4 Accuracy Limits of the AWG The Spirent Arbitrary Waveform Generator AWG has been implemented with a wide dynamic range by using an output amplifier with a discrete number of gain factors These gain factors are switchable and under control of the DLS 5800 software The har
23. message start token and ETX is the message end token Messages are not case sensitive Every byte in the DLS 5800 message set is a printable 8 bit ASCII character Messages sent by a remote controller that do not follow the protocol format are dropped by the DLS 5800 and no feedback is provided to the sender It is up to remote control application developers to ensure that the protocol of messages being sent is correct If the protocol of the message is correct then the DLS 5800 will check the syntax of the message body If the message body is syntactically correct the DLS 5800 will process the command and will return a message indicating whether the operation succeeded or not 7 2 2 Message Body Specifications There are 4 types of remote control messages used by the DLS 5800 SET parameter ID SET parameter ID VAL value GET parameter ID TRAP parameter ID VAL value The VAL parameter is used to pass a parameter value to and from the DLS 5800 For example STX SET M_ENABLE_OUTPUT VAL OUTPUT_1 ON ETX STX GET M_SELECTED_OUTPUT ETX STX TRAP ERROR VAL BAD_PARAMETER_ID ETX Refer to Table 8 1 on page 95 for a comprehensive list of messages and their associated parameter identifiers and values 7 2 3 Functional Details To operate the DLS 5800 under remote control Enable remote control access using the DLS 5800 Control Software This causes the software to begin listening for a remote connection request on ports ranging
24. mode selection made on the DLS 5410 Control dialog Always select the proper coupling mode Common or Differential BEFORE calculating 3 7 4 Noise Output Click the Generate Noise button to send the current Noise Sample to the AWG card and tell the hardware to start the generation of the output signal to the Target Channel you selected in the Noise Calculation region Use this button in conjunction with the Channel Control pull down located in the top left of the DLS 5800 Control Software to start or stop the actual generation of the noise signal NOTE that the Generate button only starts output from the DLS 5800 Noise Generator If you are using DLS 5410DC in order to connect the output to the wireline you must switch on the appropriate DLS 5410 channel using the DLS 5410 Control dialog If you are using DLS 5409 you don t need to do any further action as the DLS 5409 is always on 3 7 5 Channel Specific Settings Spirent Communications PN 71 006581 Page 36 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide When the Channel Control menu Figure 3 7 is pulled down you will see that any channels which are actively generating noise are highlighted with a check mark Selecting a channel from the menu will display the Channel Output dialog for that channel This dialog provides status information for that channel and also displays the current noise type file settings Figure 3 8 f DLS 5800 Control Sof File ei inek
25. of 128 XTALK_GAIN M_RFI_GAIN M_XTALK_GAIN M_OUTPUT_FREQ M_IMPULSE_TYPE M_IMPULSE_LEVEL M_CUSTOMNOISE_MUTE M_CFRC_ENABLE M_OUTPUT_CFRC CREST_FACTOR NUMBER_SAMPLES GENERATE_SAMPLE DLS 5800 DLS 5410DC DLS 5409 User Guide M_MICRO_GAIN See command set documentation to help determine which to use Use M_NOISE_GAIN M_NOISE_GAINEX or M_MICRO_GAIN See command set documentation to help determine which to use Use M_NOISE_GAIN M_NOISE_GAINEX or M_MICRO_GAIN See command set documentation to help determine which to use Use M_NOISE_GAIN M_NOISE_GAINEX or M_MICRO_GAIN See command set documentation to help determine which to use None M_LOAD_FILE followed by sequence to calculate generate and output Use M_NOISE_GAIN M_NOISE_GAINEX or M_MICRO_GAIN See command set documentation to help determine which to use None None CFRC no longer supported None CFRC no longer supported M_CREST_FACTOR M_NUMBER_SAMPLES M_GENERATE_SAMPLE Also the following is available only as get cannot be set M_INJECTOR_LOSS Spirent Communications Page 116 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Chapter 8 Specifications Spirent Communications PN 71 006581 Page 117 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 8 1 Standards The DLS 5800 simulates the noise requirements as currently defined by ETSI ANSI ITU and Broadband Forum Updates will be provided by
26. procedure to the equipment if first aid is not accessible Disconnect the power supply cord from the equipment before adding or removing any components Operating the equipment in the presence of flammable gases or fumes is extremely hazardous Ensure that the equipment has enough clearance at the front and at the rear minimum 4 inches or 100 mm to allow proper air ventilation Spirent Communications PN 71 006581 Page 125 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide e Do not perform any operating or maintenance procedure that is not described in this User Guide e Protection will be impaired if the equipment is used in a manner not specified by the manufacturer e The battery which is installed on the Single Board Computer of DLS 5800 is not replaceable by the user e Some of the equipment s capacitors may be charged even when the equipment is not connected to the power source 10 3 Symbols C 4__ AA d FUNCTIONAL GROUND TERMINAL PROTECTIVE GROUNDING CONDUCTOR TERMINAL CAUTION REFER TO ACCOMPANYING DOCUMENTS Spirent Communications PN 71 006581 Page 126 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Appendix C ESD Requirements Spirent Communications manufactures and sells products that require industry standard precautions to protect against damage from electrostatic discharge ESD This document explains the proper process for handling and storing electrostatic discharge sensitive E
27. the workspace and stops output on the current selected channel This command should be used immediately after selecting a channel Telnet example STX SET M_RESET_CHANNEL ETX Command M_ENABLE_ OUTPUT Description Enables or disables the output s identified by the value selectors More than one selector may be specified and they must be separated by white spaces Valid selectors OUTPUT_1 ON gt OUTPUT_24 ON to OUTPUT_1 OFF OUTPUT_24 OFF Valid status ON OFF Telnet example STX SET M_ENABLE_OUTPUT VAL OUTPUT_1 OFF OUTPUT_2 ON ETX Command DISABLE_REMOTE Description Disables remote control and terminates the connection Telnet example ISTX SET DISABLE_REMOTE ETX Command M_SAVE_CUSTOM_FILE Description Saves a calculated noise sample to disk Parameter The path and file name of the noise The file name must end with _cst enc Telnet example STX SET M_SAVE_CUSTOM_FILE VAL C MyCustomFile_cst enc ETX Command M_INFO_CUSTOMNOISE Description Sets the user defined description for saved files Use a string with a maximum of 256 characters Telnet example ISTX SET M_INFO_CUSTOMNOISE VAL This is my custom file ETX Command M_NOISE_DISTURBER Spirent Communications PN 71 006581 Page 77 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Description Set number of noise disturbers for a particular file by index starting from 0 or by file name Telnet exam
28. 00 DLS 5410DC DLS 5409 User Guide 2 9 Connecting the Mouse Keyboard and Monitor To connect the mouse keyboard and monitor Attach the mouse and keyboard to the USB ports on the front or rear panel of the DLS 5800 Connect computer monitor to rear panel video input Note If using the front panel USB ports users will not be able to lock the chassis Four USB ports are provided on the rear panel of DLS 5800 and may be used to connect DLS 5410 units or other devices Ensure the mouse and keyboard are plugged in before turning on the power 2 10 System Hardware Setups There are specific connections depending on the number of Noise Cards in your DLS 5800 unit The number of Noise Cards will also determine the number of DLS 5410 or DLS 5409 Noise Injectors that you need Connect your DLS 5800 with your DLS 5410DC or DLS 5409 injectors and Wireline Simulators as shown in these diagrams Noise Card Noise Card 2 US CHANNELS 1234 5678 BNC cables 50 Ohm Ferrite clamps v v 52 8 Z5 as gt 320 Twisted pair cables USB cable Wireline Simulator Figure 2 5 2 card DLS 5800 with 1 DLS 5410DC Spirent Communications PN 71 006581 Page 21 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Noise Card Noise Card Noise Card Noise Card 1 2 3 4 oma DO CHANNELS 1 2 3 4 5678 9101112 13141516 22 BNC cables 50 Ohm Ferrite clamps 1
29. 00 noise generator 1 2 Spirents Involvement in Noise Generation Spirent Access Emulation Division AE has been in the wireline simulation business for over 20 years Since the days of the S2 Spirent Communications has designed many new simulators both to customers specifications and to conform to an ever growing range of industry standards By introducing the DLS 100 in 1985 we believe that we sold the world s first truly wideband wireline simulator with the capability to successfully simulate attenuation characteristic impedance and delay In association with wireline simulation Spirent Access Emulation has also developed products that can effectively simulate the impairments found on real cable Crosstalk white noise RF Ingress RFI and impulse noise are but a few of many impairments generated to meet requirements of ANSI ETSI ITU T Broadband Forum and Japanese standards The need for simulated impairments in xDSL network access equipment testing has grown in terms of both bandwidth requirements noise shapes definitions and variation in time It became necessary to quickly generate not only standards based noise shapes for conformance testing but arbitrary defined shapes for performance testing of new customer xDSL products The DLS 5800 xDSL Custom Noise Generator together with DLS 5410DC or DLS 5409 Noise Injectors assists customers in designing and testing products that exceed these standards 1 3 Hardware Handling Clean
30. 0DC DLS 5409 User Guide Chapter 9 Appendix A Measuring Injection Loss To measure the actual insertion loss of a specific noise generator injection unit 1 Generate several signals within the required xDSL frequency band using a frequency generator 2 Capture the signals using a spectrum analyzer 3 Connect the Noise Injection Circuit as shown in Figure 9 1 Calculating Gain Injector Attenuation and apply a fixed load to the output of the circuit with a Balun to match the load impedance 4 Take a new capture of the signals with the spectrum analyzer The idea is to have a substantial output power of the AWG above 5 dBm which should then be attenuated by an external attenuator This has two advantages e The final desired signal can be created with maximum accuracy without for example the influence of background noise in the hardware of the noise generator e By decreasing the external attenuation the power of the noise signal on the line can be smoothly increased during a performance test Chapter 19 sac Dy bed reed gt To Agilont 0 12 Coax Figure 9 1 Calculating Gain Injector Attenuation Spirent Communications PN 71 006581 Page 122 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Appendix B Safety Information and Instructions Spirent Communications PN 71 006581 Page 123 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 10 1 Safety Information 10 1 1 Protective Groundin
31. 2 DLS 5800 Messaging Format ssssssisitoisosiessisisiarti istess snini ii iii eties 71 dane Message Body Specifications cs2sic5scvseteciesdneseentin lea rit a E E EE AEE 71 Spirent Communications PN 71 006581 Page 4 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 7 2 3 F nctional teat aie peed ale ede thse need nance vaca cada Weeden pcp deadanadnievaegeeec elena aa TESSE 71 T24 Us smg Telnet Chente ieri ara a E a a a Ea E Ea Taa 72 Deas Remote COMO AIS sses a aaa Veag E E A A aaeteaued 12 7 3 1 System and Network Commands is sscccscissssssdesncvsssdetsenteeacsassacecsassodedssndedecsastenedseaneoanaaaes 72 7 3 2 Channel Output CO TN a tee cate ceca thdces an daune eid laa tpeeedaset iid sce cade nwagik Sek a cendeatded Acme tee 713 7 3 3 DLS 5410DC Injector Remote Commands sssessseeseeseeeseesessersresrerseesrrreesersesreesresseeeresee 78 Poo N ise Burst Commands sssrini esaa aa E aaia 85 e e E e O O E E EA 85 Tia Synchronized Stafi sssrinin toni reaR EE A a 88 74 Sample Remote Control Sequences sesseeeeesseesesrrsseseiesresstseresrtsstrsesstessessteseensesseentessteseeereset 89 7 4 1 Simple Load and Output sequence ssessesessseessessessesssesressesnsesorssessssesrssessseessescesssescesessses 89 TAZ Noise Burst single burst script eeeeseeseeerssseesessrssserresstserssrensetsresrensttstertenserseesreeseesseseresee 91 7 4 3 Noise Burst multiple burst SCr pt ccccas ccc cicecheasectaneeesdecestesuperieectencaveri
32. 234 1234 1234 1234 SIDEA SIDEB SIDEA SIDEB o s mg F ke a eke as 8 al 3g 8 3 yy Yo oh Twisted pair cables USB cables Wireline Wireline q Simulator F T Simulator 7 SIDE A SIDE B SIDE A SIDE B Figure 2 6 4 card DLS 5800 with 2 DLS 5410DCs Noise Card Noise Card Noise Card NoiseCard NoiseCard Noise Card 1 2 6 m m a R CHANNELS 1 2 3 4 5678 9101112 13141516 17181920 21222324 222 BNC cables 50 Ohm Ferrite clamps 1234 1234 1234 1234 1234 1234 SIDEA SIDEB SIDEA SIDEB SIDEA SIDEB o o o o bE g f5 58 g E5 5f g ES as S SA as 5 S0 as 2 280 yy vy Yyy vy Yy woe Twisted pair cables USB cables Wireline Wireline Wireline q Simulator q Simulator q Simulator SIDE A SIDE B SIDE A SIDE B SIDE A SIDE B Figure 2 7 6 card DLS 5800 with 3 DLS 5410DCs Noise Card Noise Card 2 oN f oak CHANNELS 1 2 3 4 5678 BNC cables 50 Ohm Repeat DLS 5409 and splitter for Ch 3 8 Cossa Coss 4 RJ 45 FEMALE RJ 45 MALE SPLITTER SPLITTER TO DUT y TO DUT vy Twisted pair cables l Muti Channel Simulator miia ap Figure 2 8 Production Testing Setup with 2 card DLS 5800
33. 4 Main Fuse Type The fuse type used is specified in Appendix A Specifications 10 1 5 Connections to a Power Supply In accordance with international safety standards the units use a three wire power supply cord When connected to an appropriate AC power receptacle this cord grounds the equipment chassis Note When connecting the AC power cable input into the back of the DLS 5800 and DLS 5410DC please ensure that the AC power cable is positioned so that it is not difficult to remove and so that there are no obstructions present that would prevent its removal 10 1 6 Operating Environment To prevent potential fire or shock hazard do not expose the equipment to any source of excessive moisture Spirent Communications PN 71 006581 Page 124 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 10 1 7 Class of Equipment The unit consists of an exposed metal chassis that is connected directly to earth via the power supply cord In accordance with HARMONIZED EUROPEAN STANDARD EN 61010 1 1993 it is classified as Safety Class I equipment Warning This is a class A product This product may cause radio interference In this case you may be required to take adequate measures to mitigate this problem in a domestic environment 10 2 Safety Instructions The following safety instructions must be observed whenever the unit is operated serviced or repaired Failing to comply with any of these instructions or with any precaution or warn
34. 4DPlusWN_xtk enc ETX Command M_GENERATE_SAMPLE Description Constructs and combines the noise shape before output Starts generating the noise sample Telnet example Spirent Communications PN 71 006581 Page 74 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide STX SET M_GENERATE_SAMPLE ETX Command M_LOAD_OUTPUT Description Loads the output with the combined noise file to the current selected channel Telnet example STX SET M_LOAD_OUTPUT ETX Command M_NOISE_GAIN Description Sets the gain of the last loaded noise In the case of impulse noise the gain is based from a starting level of 0 mV Parameter For Xtalk and RFI A number in the range of 72 25 to 72 25 For Time domain A number in the range of 7 0 to 7 0 For Impulse A number in the range of 0 0 to 100 0 Telnet example ISTX SET M_NOISE_GAIN VAL 22 ETX Command M_NOISE_GAINEX Description Extended gain command This allows setting the gain of a particular loaded noise by index or by filename In the case of impulse noise the gain is based from a starting level of 0 mV Parameter index level_or_filename level Indices start from 0 For Xtalk and RFI A number in the range of 72 25 to 72 25 For Time domain A number in the range of 7 0 to 7 0 For Impulse A number in the range of 0 0 to 100 0 Telnet example ISTX SET M_NOISE_GAINEX VAL 0 10 ETX ISTX SET M_NOISE_GAINEX VAL White_Noise_xtk enc 10 ETX Command M_MICRO_GAIN
35. 5409 User Guide Command M_INJ_CHAN lt n gt _REIN_STOP Function Stop REIN test Parameter lt n gt valid REIN channel number 2 6 10 14 18 22 Telnet example STX SET M_INJ_CHAN2_REIN_STOP ETX If the REIN test is not started this command will produce the response REIN_TEST_NOT_RUNNING Command M_INJ_CHAN lt n gt _REIN_STATE Function Return status of REIN test ACTIVE or INACTIVE Parameter lt n gt valid REIN channel number 2 6 10 14 18 22 Telnet example STX GET M_INJ_CHAN2_REIN_STATE ETX 7 3 3 3 DSM Command M_INJ_CHAN lt n gt _DSM_LOADSEQUENCE Function Loads a DSM Sequence file Parameter lt n gt valid DSM channel pair number 3_4 7_8 11_12 15_16 19_20 23_24 Parameter The file name to load DSM Sequences are always stored in the C Program Files Spirent Communications DLS 5800 DSM Sequences subfolder and the software sets this path automatically Telnet example ISTX SET M_INJ_CHAN7_8_ DSM_LOADSEQUENCE VAL DSMSequence1 dsq ETX Command M_INJ_CHAN lt n gt _DSM_START Description Starts the DSM test Parameter lt n gt valid DSM channel pair number 3_4 7_8 11_12 15_16 19_20 23_24 Telnet example STX SET M_INJ_CHAN7_8_ DSM_START ETX Command M_INJ_CHAN lt n gt _DSM_STOP Description Stops the DSM test Parameter lt n gt valid DSM channel pair number 3_4 7_8 11_12 15_16 19_20 23_24 Telnet example STX SET M_INJ_CHAN7_8_DSM_STOP ETX Command M_I
36. 5410DC DLS 5409 User Guide 7 3 4Noise Burst Commands The Noise Burst is a remote only feature of the DLS 5800 software This feature allows precision timing control of the noise generator output This feature was developed before the introduction of DLS 5410DC but still is useful for generating signals that fall outside the DLS 5410DC capabilities for example extremely long REIN bursts It is also useful for generating timed bursts using DLS 5409 Passive Injectors However for most precision applications we recommend using the hardware based timing capabilities of the DLS 5410DC The Noise Burst feature generates single bursts of programmable duration using a trigger command The Noise Burst Test lets you repeat bursts a specified number of times at a specified interval after an optional programmable delay Noise bursts are generated by switching on and off the output of the affected channel 7 3 5 How to Use it The command sequence for using the Noise Burst feature is shown in this section The new commands are shown in bold See Commands on page 106 for details on these commands and see Example Sequence for Noise Burst Test on page 107 and Example Sequence for Single Noise Burst on page 108 To use the noise burst feature 1 Select the output channel M_SELECT_OUTPUT 2 Reset the channel M_RESET_ CHANNEL bead If using DLS 5410DC turn on the appropriate injector output M_INJ_CHAN lt n gt _STATE
37. 71 006581 Page 2 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Contents CHARI MAM OOUC WOM sacascoccecediensstascsccadedanasededanoubedennnsdadenesetadennsedadepmncdadsccnteebasenedndsaasetedenmantes 7 L1 UOT OM escorts essed cantoadsesbntee eects terccensaied E reli age E E E R 8 1 2 Spirents Involvement in Noise Generation cee eee essecsseceseeesneecceceseeeseeesaeecaeesseeseeeeeaeeenaeens 8 1 3 Hardware Handling Cleaning Practices satse cops cade tose cedocg edn acknied edeaitadeiptadcedededeadlphideruenndaietercade 8 14 Protecting Your Investment i ccsceccccsc ec setes noaa a a R EA a 8 LAL Ext nded Warranty sisirisesiiconsianiisisies iniiis riiai arani e aai Raa RE Ra SEE OAR ERa 9 1 4 2 Three Year Calibration Agreement eeseseesseesssrseresressessresresstestestenserstestesseestesereseesreseeeset 9 1 4 3 Where to Go from Here asacpetics ca caceegisceka cts ade can let dace ces eiaeia Enies 9 1 5 Support Services Contact Information sesesssessesesessseeeseeeesstesstessessetersetrssresseesseseseeessseesseest 10 16r Syste OVErVIEW ceiau rea E E a a T 11 1 6 1 Hardware Config ration g cssccesssessesssnecessastantesassecansadiensasasnaensiassaveusasiegeasandanaetauaderdassesacsaees 11 1 7 DLS 5800 DLS 5410 DLS 5409 Configurations ssessseseeseesreeseeresstsesssressrssresrersersrerreeseese 13 L71 Test Setpro E TEE TE E A E 13 1 5 ADS DODO FeatUreS rinses S E EAER E E EE E 15 Chapter 2 Getting Stat
38. Bm If this not the case you should first compensate for this systematic error of the setup by Spirent Communications PN 71 006581 Page 59 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide adjusting the amplifier gain of the source settings See Figure 5 1 for the spectrum observed at the output of the AWG Profile A1 unmodulated carrier of 10 dBm Signal Power into 50 ohm ingress profile 1 RBW 300Hz VBWV 100Hz 200 220 240 260 280 300 320 340 360 380 400 Figure 5 1 Measured Spectrum of the Reference Ingress Noise A1 Aggregate powerinto 50Q P 10 dBm 0 1 mW 5 6 DLS 5B36 RFI Modulation Method This RFI modulation is described according to ETSI guidelines in TD 23R1 from ETSI TM6 September 20 to October 3 2003 file name 033t23r1 pdf titled Text Proposal for RFI Testing Note The DLS 5800 noise generator supports RFI only via the DLS 5B36 license The older DLS 5B 14 RFI license previously supported by DLS 5204 and DLS 5500 products is no longer supported Please consult Spirent Communications if necessary see Support Services Contact Information NOTE for users of DLS 5204 DLS 5500 Previous RFI noise generation had a non zero modulation index specified This will now be a fixed modulation index as required by the new ETSI proposal Files which previously had a modulation of zero that are intended to be a single tone will be a single tone Figure 5 3 displays the frequency representation of t
39. Configuration The DLS 5800 noise generator consists of a rack mountable 4U high PC chassis Spirent Communications PN 71 006581 Page 11 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide containing 2 4 or 6 custom Arbitrary Waveform Generator AWG module s keyboard and mouse control software and sample noise library s w The DLS 5800 is equipped with a 90 to 264 VAC 50 to 60 Hz power supply auto ranging or 100 120 220 240 VAC 10 60 50 Hz power supply switchable The DLS 5410DC is a 1U rack mountable chassis which is powered by an external power supply included The DLS 5409 is a matchbox sized unit which needs no power supply The DLS 5800 configuration is as follows e DVD drive e Hard drive minimum 250 GB e 2 Gig RAM minimum e 3RS232 ports and 1 parallel printer port e 6USB ports e LANport e Standard VGA monitor port e 8or 16 or 24 channels Arbitrary Waveform Generator that is 2 or 4 or 6 AWG modules each with 4 ports Software controlled BNC connectors for all Noise Outputs designed to drive a 50 Q load e Included software WinXP Professional Operating System DLS 1100 Software DLS 5800 Control Software DLS 5B07 Sample VDSL Noise Files NOTE DLS 5800 can be configured to handle 2 or 4 or 6 AWGN noise cards within a single chassis The DLS 5800 does not perform noise injection directly to the wireline simulator It must be injected into the test circuit by means of a connection t
40. Dir C Program Files Spirent Communications DLS5800 noiseFiles set noiseFile noiseDir ADSL C1_imp dat Spirent Communications PN 71 006581 Page 94 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide set chan OUTPUT_ fire up the box Open ip port set the current card to use numbered from 1 to n where n is 2 to 6 depending on your hardware set cardNum 4 calculate which channels are on that card set loIdx expr cardNum cardNum 1 3 set hildx expr loIdx 3 calculate the channel mask so that 4 channels on the card are started card 1 15 card 2 240 card 3 3840 card 4 61440 card 5 983040 card 6 15728640 set chanMask expr 15 lt lt cardNum 1 4 load buffers 4 channels on the selected noise card for set idx loIdx idx lt hildx incr idx write_socket STX SET M_SELECT_OUTPUT VAL chan idx ETX read_socket write_socket STX SET M_RESET_CHANNEL ETX read_socket write_socket STX SET M_LOAD_FILE VAL noiseFile ETX read_socket write_socket STX SET M_NOISE_GAIN VAL 100 ETX Spirent Communications PN 71 006581 Page 95 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide read_socket write_socket STX SET M_GENERATE_SAMPLE ETX read_socket write_socket STX SET M_LOAD_OUTPUT_BUFFER ETX read_socket start the channels write_socket STX SET M_SYNCSTART VAL chanMask ETX read_socket pause execution tk_mess
41. EEE PEE EEE TEE set ip 10 20 2 44 local set ip 127 0 0 1 E TERETE TEETER PEE H H H H HHHH Spirent Communications PN 71 006581 Page 100 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide set port 2001 fire up the box Open ip port set cmd SET M_INJ_CHAN set state STATE set mode _MODE set cmdclose set channellist list 1 5 9 13 17 21 set m_inj M_INJ_ set _duration _SHINE_DURATION set _frequency _REIN_FREQUENCY set _repetitions _REIN_REPETITIONS set _start _SHINE_START set _stop _SHINE_STOP set _getparamstate _SHINE_STATE foreach chn channellist set chan CHAN append chan chn puts Testing SHINE synchronization GET command on chan write_socket STX SET m_inj chan _duration VAL 25000 ETX read_socket write_socket STX SET m_inj chan _start ETX read_socket loop until all inactive set bActive 1 while bActive 1 set ret IsFunctionActive channellist _getparamstate if ret set bActive 0 Spirent Communications PN 71 006581 Page 101 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Close 7 4 4 Micro Interrupt Sample PEPE EEE PETE EE TEEPE EE TEEPE TE PETE EET EEE EEE EEE EEE MAIN Scipt PEPE EEE PETE PETER TE EEE EEE TE PETE EET ETE EEE EEE TEE set ip 10 20 2 44 local set ip 127 0 0 1 FEEL H E H HE EE set port 2001 fire up the box Open ip port set cmd SET M_INJ_CHAN set state _ STATE set mode _ M
42. IN pattern Parameter lt n gt valid PEIN channel number 1 5 9 13 17 21 Spirent Communications PN 71 006581 Page 81 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Parameter Number of repeats from 1 to 255 or 0 for free run Telnet example STX SET M_INJ_CHANS_PEIN_REPETITIONS VAL 50 ETX NOTE that a single repetition of the PEIN pattern will take around 35 minutes to complete Command M_INJ_CHAN lt n gt _PEIN_START Description Starts the PEIN test Parameter lt n gt valid PEIN channel number 1 5 9 13 17 21 Telnet example STX SET M_INJ_CHANS_PEIN_START ETX Command M_INJ_CHAN lt n gt _PEIN_STOP Description Stops the PEIN test Parameter lt n gt valid PEIN channel number 1 5 9 13 17 21 Telnet example STX SET M_INJ_CHANS_PEIN_STOP ETX Command M_INJ_CHAN lt n gt _ PEIN _STATE Function Return status of PEIN test ACTIVE or INACTIVE Parameter lt n gt valid PEIN channel number 1 5 9 13 17 21 Telnet example STX GET M_INJ_CHAN1_PEIN_STATE ETX NOTE PEIN can run simultaneously on both sides A and B NOTE PEIN and SHINE cannot run simultaneously on the same channel 7 3 3 6 Micro Interrupts Command M_INJ lt n gt _INTERRUPT_LENGTH_A Function Set Injector lt n gt Side A Micro Interrupt length Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Parameter Side A micro interrupt length in mS
43. LS 5410DC Noise Injector units are powered up and connected to the DLS 5800 via the USB ports To launch the DLS 5800 Control Software select Start All Programs Spirent Communications DLS 5800 DLS 5800 The software will attempt to connect to the DLS 5410DC noise injector s required for your hardware configuration If the software cannot establish communications with the correct number of DLS 5410DC units or if the associated Display this dialog on startup box is checked the software will display the Injector Configuration dialog If the software was successful in establishing communications with the correct number of DLS 5410DC units and the Injector Configuration dialog appears because the Display this dialog on startup box is checked you will see that the Apply button is disabled and the appropriate Locate buttons are enabled Just click OK to close the dialog If you are not using DLS 5410DC you must use DLS 5409 Select this injector type at the Injector Configuration dialog click Apply then click OK to close the dialog NOTE that DLS 5800 must use DLS 5410DCs for all channels OR DLS 5409s for all channels A mix of injector types is not supported To exit the DLS 5800 Control Software select File Exit 3 5 Injector Configuration Dialog There are two Spirent noise injectors that may be used with the DLS 5800 noise generator e DLS 5410DC multi input noise injection unit e DLS 5409 passive single input si
44. N 71 006581 Page 107 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 7 5 2 5 perror TCL code proc perror command errormsg Display Error messages error command errormsg 7 5 2 6 IsFunctionActive This function returns a list of channels on which the passed function is active Passed parameters Function _DSM_STATE REIN STATE PEIN STATE _MI_ STATE SHINE STATE ChanList List of channels to test i e set ChanList list 3_4 7_8 11_12 15_16 for DSM proc IsFunctionActive ChanList Function return a list of channels which are ACTIVE regarding the passed function set sValIDToken VAL set sCloseParenthesesToken set m_inj M_INJ set sReturnList foreach chn ChanList set chan _CHAN append chan chn set retval ACTIVE set _getstat m_inj chan Function write_socket STX GET _getstat ETX set retval read_socket set iValpos string first s ValIDToken retval set iValpos expr iValpos string length s ValIDToken Spirent Communications PN 71 006581 Page 108 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide set iEndPos string first sCloseParenthesesToken retval iValpos set retval string range retval iValpos iEndPos 1 if retval INACTIVE add this channel to the active list append sReturnList chn return sReturnList 7 5 2 7 Close TCL code proc Close global _sock_desc close _sock_desc mw set _sock_desc
45. N 71 006581 Page 34 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Sample as it is downloaded onto the AWG noise card 3 7 2 2 Sampling Rate This value is fixed and is determined by the file type being used This value is displayed as 12 5 MHz 32 MHz or 100 MHz 3 7 2 3 Xtalk Crest Factor If crest factor checking is enabled if the crest factor is equal to or greater than 5 this field will display Passed 3 7 3 Noise Calculation Region The controls in this region are explained in the following sections 3 7 3 1 Crest Factor Greater Than or Equal to 5 Check the Crest Factor gt 5 checkbox to ensure that generated noise samples have amplitude distribution compliant with the 2nd generation ETSI xDSL standards such as SDSL ETSI has specified this amplitude distribution by means of a tight mask to give meaning to concepts like near Gaussian and crest factor above 5 This compliance is achieved using an iterative algorithm for calculating the noise sample This algorithm repeats up to 5 times to try to ensure that the crest factor of the calculated sample is gt 5 If it succeeds Passed is displayed in the Combined Noise region under the graph If after 5 tries the crest factor is still not satisfactory the display indicates Failed Note When ETSI compliant crosstalk noise crest factor gt 5 is combined with ingress noise for example a single RFI tone at very high level the crest fact
46. NJ_CHAN lt n gt _DSM_STATE Function Return status of DSM test ACTIVE or INACTIVE Spirent Communications PN 71 006581 Page 80 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Parameter lt n gt valid DSM channel pair number 3_4 7_8 11_12 15_16 19_20 23_24 Telnet example STX GET M_INJ_CHAN3_4 DSM_STATE ETX 7 3 3 4 SHINE Command M_INJ_CHAN lt n gt _SHINE_ DURATION Description Set the length of the SHINE burst Parameter lt n gt valid SHINE channel number 1 5 9 13 17 21 Parameter SHINE burst length from 30 to 65000 mSecs step 1 mSec Telnet example STX SET M_INJ_CHAN1_SHINE_DURATION VAL S50 ETX Command M_INJ_CHAN lt n gt _SHINE_ START Description Starts the SHINE test Parameter lt n gt valid SHINE channel number 1 5 9 13 17 21 Telnet example STX SET M_INJ_CHAN1_SHINE_START ETX Command M_INJ_CHAN lt n gt _SHINE_STOP Description Stops the SHINE test Parameter lt n gt valid SHINE channel number 1 5 9 13 17 21 Telnet example STX SET M_INJ_CHAN1_SHINE_STOP ETX Command M_INJ_CHAN lt n gt _SHINE_STATE Function Return status of SHINE test ACTIVE or INACTIVE Parameter lt n gt valid SHINE channel number 1 5 9 13 17 21 Telnet example STX GET M_INJ_CHAN1_SHINE_STATE ETX NOTE SHINE can run simultaneously on both sides A and B 7 3 3 5 PEIN Command M_INJ_CHAN lt n gt _PEIN_REPETITIONS Description Set the number of times to repeat the PE
47. ODE set cmdclose set channellist list 1 2 3 set m_inj M_INJ set _intlengthA _INTERRUPT_LENGTH_A set _intlengthB _INTERRUPT_LENGTH_B set _intside INTERRUPT_SIDE set _inttrig _TRIGGER_SINGLE set __intevery INTERRUPT_EVERY set _inttotal INTERRUPT_TOTAL set _start_INTERRUPT_TRIGGER_START set __stop INTERRUPT_TRIGGER_STOP set _getparamstate_MI_ STATE foreach chn channellist Spirent Communications PN 71 006581 Page 102 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide puts Testing Microinterrupt commands on injector chn write_socket STX SET m_inj chn _intlengthA VAL 100 ETX read_socket write_socket STX SET m_inj chn _intlengthB VAL 200 ETX read_socket write_socket STX SET m_inj chn _intevery VAL 1 ETX read_socket use 1 for A and 2 for B in the next line write_socket STX SET m_inj chn _intside VAL 1 ETX read_socket write_socket STX SET m_inj chn _inttotal WAL 60 ETX read_socket write_socket STX SET m_inj chn _start ETX read_socket loop until all inactive set bActive 1 while bActive 1 set ret IsFunctionActive channellist _getparamstate if ret set bActive 0 Close 7 5 TCL Code Fragments These sections include functions for opening writing and reading sockets Note that these are not intended as complete code elements and as such do not implement proper error checking But they may be useful in order to get star
48. OM_NOISE Description File path or file name is not recognized File may not end with CST ENC Error FAILURE_OTHER_NOISE_ SELECTED Description Other noise types are currently in use or selected Error IMPULSE_TYPE_WRONG Description Incorrect impulse noise type was selected Error FAILURE _CANNOT_SET_WHITENOISE Description TD white noise cannot be set because sampling frequency is incompatible Error FAILURE_FILE_LIMIT_EXCEEDED Description The maximum number of one or more file types has been exceeded The maximum number of files according to type is as follows Xtalk 6 RFI 1 Impulse 1 Time Domain 1 Custom 1 Error UNABLE_TO_COMBINE_WITH_OTHER_NOISE_TYPE Description Attempt to load a file with a different type of noise For example xtalk with impulse Error FAILURE_FILE_ALREADY_LOADED Description This file has already been loaded Error FAILURE_COMPLEX_LOAD_NOT_COMPATIBLE Description This file does not have the same complex load impedance compensation as the previously loaded file Error FATLURE_FILE_NOT_LOADED Description Attempt to perform an operation requiring a loaded file such as setting the noise Spirent Communications PN 71 006581 Page 113 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide gain when no file has been loaded Error FAILURE_INVALID_INDEX Description The index position is invalid relative to the extended noise gain command Error FAILURE_GAIN_NOT
49. S 5410DC DLS 5409 User Guide Chapter 7 Remote Control Spirent Communications PN 71 006581 Page 69 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 7 1 Developing a Remote Controller Remote control of the DLS 5800 means controlling it from a separate application running on the same or a remote machine by using TCP IP to transport messages that follow the DLS 5800 inter process communications protocol Such an application can be thought of as a remote controller Remote control of the DLS 5800 and DLS 5410DC is achieved via the DLS 5800 Control Software which is placed in Remote mode and in this mode will accept commands that allow remote control of the DLS 5800 and DLS 5410DC functions DLS 5409 being a passive device requires no control You may use any programming language to develop a remote controller as long as the language allows you to talk TCP IP Indeed you may develop the remote controller for any operating system and or host machine The essential requirement is that you adhere to the messaging protocol defined for the DLS 5800 Your remote control software must create a client socket and initiate a TCP IP connection request to the targeted DLS 5800 unit before they can start exchanging messages Once the connection is established the DLS 5800 will respond to command messages sent via TCP IP NOTE When connected the listener socket in the DLS 5800 Control Software ignores any further connection reques
50. SDS devices assemblies and equipment The requirements presented in this document comply with the EIA Standard ANSI ESD S20 20 1999 Development of an Electrostatic Discharge Control Program and apply to anyone who handles equipment that is sensitive to electrostatic discharge Such equipment includes but it not limited to e All electronic assemblies manufactured by Spirent Communications e Discrete and integrated circuit semiconductors e Hybrid microcircuits e Thin film passive devices Memory modules Caution Failure to comply with the requirements explained in this document poses risks to the performance of ESDS devices as well as to your investment in the equipment 11 1 General Equipment Handling Whenever you handle a piece of ESDS equipment you must be properly grounded to avoid harming the equipment Also when transporting the equipment it must be packaged properly Follow the requirements below to help ensure equipment protection e Wrist straps must be worn by any person handling the equipment to provide normal grounding e The use of foot straps is encouraged to supplement normal grounding If foot straps are used exclusively two straps one on each foot should be used Note that foot straps are only applicable in environments that use ESD flooring and or floor mats e Hold ESDS equipment by the edges only do not touch the electronic components or gold connectors e When transporting equipment between ESD prote
51. STX SET M_INJ_CHAN1_MODE VAL 1 ETX If the value is not in range the return will be VALUE IS OUT RANGE 7 3 3 2 REIN Command M_INJ_CHAN lt n gt _REIN DURATION Function Set the duration of the REIN noise Parameter lt n gt valid REIN channel number 2 6 10 14 18 22 Parameter REIN Noise Duration from 50 20000 microseconds in 10 uS steps Telnet example STX SET M_INJ_CHAN2_REIN_ DURATION VAL S50 ETX NOTE the software accepts values in 1 uS increments but the system will use the nearest multiple of 10 uS Command M_INJ_CHAN lt n gt _REIN FREQUENCY Function Sets the frequency of the REIN noise Parameter lt n gt valid REIN channel number 2 6 10 14 18 22 Parameter REIN Frequency from 1 to 200 Hz Telnet example STX SET M_INJ_CHAN2_REIN_FREQUENCY VAL 1 ETX Command M_INJ_CHAN lt n gt _REIN_REPETITIONS Function Sets the number of repetitions of the REIN noise Parameter lt n gt valid REIN channel number 2 6 10 14 18 22 Parameter REIN repetitions from 0 to 65000 O0 free run Telnet example STX SET M_INJ_CHAN2_REIN_REPETITIONS VAL 1 ETX Command M_INJ_CHAN lt n gt _REIN_ START Function Start REIN test Parameter lt n gt valid REIN channel number 2 6 10 14 18 22 Telnet example STX SET M_INJ_CHAN2_REIN_START ETX NOTE REIN can run simultaneously on both sides A and B Spirent Communications PN 71 006581 Page 79 of 128 DLS 5800 DLS 5410DC DLS
52. So SPIRENT Inspired innovation User Guide DLS 5800 xDSL DSM Custom Noise Generator Sequencer DLS 5410DC Differential Common Mode Noise Injection Unit DLS 5409 Mini Passive Noise Injector July 2011 P N 71 006581 DLS 5800 DLS 5410DC DLS 5409 User Guide Spirent Communications Inc 26750 Agoura Road Calabasas CA 91302 USA Copyright 2011 Spirent Communications Inc All Rights Reserved All of the company names and or brand names and or product names referred to in this document in particular the name Spirent and its logo device are either registered trademarks or trademarks of Spirent plc and its subsidiaries pending registration in accordance with relevant national laws All other registered trademarks or trademarks are the property of their respective owners The information contained in this document is subject to change without notice and does not represent a commitment on the part of Spirent Communications The information in this document is believed to be accurate and reliable however Spirent Communications assumes no responsibility or liability for any errors or inaccuracies that may appear in the document Limited Warranty Spirent Communications Inc Spirent warrants that its Products will conform to the description on the face of order that it will convey good title thereto and that the Product will be delivered free from any lawful security interest or other lien or encumbrance S
53. _ADJUSTABLE Description Attempt to adjust gain for a file with a fixed gain for example a custom noise profile Error UNABLE_TO_APPLY_DISTURBER_NOT_AVAILABLE Description Disturbers cannot be set for the selected noise file Error CHANNEL_NOT_ACCESSIBLE Description a Attempt to invoke a command which would access a channel in another remote instance b Attempt to invoke a command which would access a channel which is not available due to hardware configuration For example attempting to select channel 17 on a system containing 2 noise cards would produce this error as the maximum allowed channel number would be 16 Error UNABLE_TO_COMPLY_IN_DOUBLE_SESSION_MODE Description The command affects both remote instances and therefore cannot be completed For example a remote instance requests a return to local mode Error FAILURE _LOAD_NOISE_COMMAND_ FILE Description A command in the noise command file NCD file contains an error that prevents it from successfully loading Error FAILURE _NOT_CUSTOMER_SAVED_FILE Description The file is not a customer saved file ending wit Error FAILURE _SAVE_DSM_FRAME _cst enc Description An error occurred when attempting to save a DSM frame file Error UNSUPPORTED_ON_SPECIFIED_CHANNEL Description The selected function REIN PEIN SHINE DSM is not allowed on the specified DLS 5410 injector channel Spirent Communications PN 71 006581 Page 114 of 128 DLS
54. a DLS 5800 6 which supports 24 channels The range of channels available to you depends on your hardware configuration A DLS 5800 2 supports channels 1 to 8 and DLS 5800 4 supports channels 1 to 16 7 3 1 System and Network Commands Command M_SOFTWARE_VERSION Function Get software version Telnet example STX GET M_SOFTWARE_VERSION ETX Command M_INSTALLED_LICENSE Function Get installed license Returns A string containing all licensed product names such as DLS5C20_Key DLS5B13 DLS5B17 and so on Telnet example STX GET M_INSTALLED_LICENSE ETX Spirent Communications PN 71 006581 Page 72 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Command M_INSTALLED_PACKAGES Function Returns a list of all installed noise packages with the package version Parameter None Telnet example Sending STX GET M_INSTALLED_PACKAGES ETX Receiving STX SET REPORT VAL DLS 5B11 v1 0 DLS 5B13 v1 1 ETX If no noise packages are installed the control software returns the following message STX TRAP ERROR VAL NO_INSTALLED_PACKAGES ETX Command M_MAC_ADDRESS Description Get MAC address Telnet example STX GET M_MAC_ADDRESS ETX Command M_NETWORK_NAME Description Get network name Telnet example STX GET M_NETWORK_NAME ETX Command M_SYSTEM_ID Description Retrieves the identification tag that was set in the DLS 5800 Control Software Telnet example STX GET M_SYSTEM_ID ETX 7 3 2 Channel O
55. ach side shows a grid that displays the current DSM sequence and the file and duration associated with each frame in the sequence Each row in the grid represents a frame d Double click in the Duration column then type a value in seconds representing for how long the frame should play back e Click in the File column and click Browse Choose one of the frames that you previously saved f Use the Add New Frame Before After buttons to add frames before or after the currently active frame Use Remove Selected frame to remove the currently active frame or Remove All Frames to clear the entire sequence If no frame is active the active frame is assumed to be Frame 1 g Repeat steps d e and f until you have defined all the frames in the sequence h If you wish to be able to recall the sequence use the Save Sequence button to save the DSM Sequence into a file DSM Sequence files must be stored in C Program Files Spirent Communications DLS 5800 DSM Sequences You can then use the Load Sequence button to recall the sequence i Click OK to close the dialog 3 On the DLS 5410 Control dialog ensure that the channel pair you wish to use is turned OFF check boxes are clear not checked Valid channel pairs for DSM are 3 4 7 8 11 12 15 16 19 20 and 23 24 4 On the DLS 5410 Control dialog click the Start button under DSM corresponding to the channels you wish to use 3 10 1 6 Micro Interrupts Micro interrupts
56. afety MSto NS sesiis eisses ree EEE EE EEA E REE E EEEE EEKE EE EES 125 10 2 1 Beture Operating the UMitisecssaonirarsn n a a 125 Spirent Communications PN 71 006581 Page 5 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 10 2 2 Operating the Lin ac 55 csasieasaseosnsossevndevasnnewdaastasasveapasanea EE KEER EEES EEEE OEGE EER GR 125 10 3 Syml See eee a e a a eue eeesee 126 Chapter 11 Appendix C ESD Requirement 0 ceeeceeeececeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeenaaeees 126 11 1 General Equipment Handling 3 icsaccdiavsedscsciswnacseteacdeedeiabsdeavaadaneavassasae deeuadedsuanaten iospeandaeaneoseted 127 11 2 Workstation Preparation cz sic acenssc cece sndatsaiawtinsyucietwnnsdadiisvadawinadudebsdssthinianasdotedsmtnsudcedacwasdousenes 127 Spirent Communications PN 71 006581 Page 6 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Chapter 1 Introduction Spirent Communications PN 71 006581 Page 7 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 1 1 Introduction This Operating Manual describes the setup operation and control features of DLS 5800 DLS 5410DC and DLS 5409 products These products are designed for use in physical testing of ANSI ETSI ITU T Broadband Forum HomePNA and EFM xDSL network access equipment General information is also provided on system administration functions testing procedures and diagnostics NOTE The DLS 5410DC noise injection unit is designed to work only with the DLS 58
57. ageBox message Click OK to continue icon info type ok stop the output on all 4 channels for set idx loIdx idx lt hildx incr idx Section for repeating the impulses write_socket STX SET M_SELECT_OUTPUT VAL chan idx ETX read_socket write_socket STX SET M_RESET_CHANNEL ETX read_socket Close 7 4 5 DSM Sample This sample illustrates starting DSM on all available channels on a 4 card DLS 5800 and waiting until all tests are done FREESE EEE ETE ETE PE EEE TE PE EEE EPP PEEP PE PEEP EEE EEE MAIN Scipt FREESE EEE TEPER EEE PEPE PETE TE PE EEE EPP PEEP PE PEE PE PEEP E E EHH DLS 5800 set ip 10 20 2 44 set port 2001 Spirent Communications PN 71 006581 Page 96 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Open ip port this channel list is for a 4 card system set channellist list 3_4 7_8 11_12 15_16 set m_inj M_INJ_ set _loadsequence _DSM_LOADSEQUENCE set __start_DSM_START set stop DSM_STOP set __getparamstate DSM_STATE foreach chn channellist set chan CHAN append chan chn puts Testing DSM synchronization GET command on chan change short dsq to whatever dsm sequence you wish to use write_socket STX SET m_inj chan _loadsequence VAL short dsq ETX read_socket write_socket STX SET m_inj chan _start ETX read_socket wait until all DSM sequences are done set bActive 1 while bActive 1 set ret IsFunctionActive channellist _get
58. al density This second column the PSD may be expressed in either dBm Hz or in V sqrt Hz The DLS 5800 distinguishes between the two by the sign of the numbers in the second column If these numbers are negative they are interpreted as amounts of dBm Hz if they are positive they are interpreted as amounts of V sqrt Hz 3 Optionally the file may contain a line of which the frequency value is negative This tells the DLS 5800 to interpret the second number on this line as the reference impedance If this negative symbol is not in the Frequency column the noise file will not generate 4 An example of a frequency vs power is shown in Table 4 2 Table 4 2 Example of Noise Profile in ASCII Formats Frequency Hz Power dBm Hz 999 140 1e6 140 1 00001e6 70 4e6 70 5 0000e6 140 1 50 Spirent Communications PN 71 006581 Page 53 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide The DLS 5800 interpolates between the values provided in the noise profile ASCII file By default the interpolation scheme is based on linear frequency linear dB See Figure 4 2 for a picture of the noise profile corresponding to the data in Table 4 2 Example of Noise Profile in ASCII Formats You can create custom noise files using several formats which include txt editors Notepad or Microsoft Excel and so on The file format outlined in Table 4 2 must be saved as an _xtk dat extension similarly for RFI ingress these file types
59. alculate the attenuator levels set by the DLS 5800 for large data files this is the same as the standard deviation of the data This in turn controls output power Output power is based on a 50 Q load The level needed in the file header is calculated in dBm from the formula 51 28 Power 20 log RMS where Power is the required power output in dBm and RMS is the RMS value of all the numbers in the body of the file compensation lt None gt presently defined as None for future development by Spirent power value lt 45 00 dBm gt This value does not affect the power of the signal The value in this field will be displayed by the DLS 5800 Control Software when the file is being generated You can leave this field blank or put in a value of meaning for reference purposes res lt 16bit gt presently defined as 16bit for future development by Spirent data lt begin gt presently defined as begin The main body of the file must start on the line after this header information Spirent Communications PN 71 006581 Page 65 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 6 4 1 Relative Amplitude for Each Sample Each line of the body of the file must be a decimal number between 0 and 16383 A value of 0 means that the DAC will output 5 V and a value of 16383 means that the DAC outputs a voltage of 5 V For telecommunications purposes the average mean value of the data samples should be 8191 5 20 For insta
60. ancumeceddaneeuseesapudveccauees 92 7 44 4 Synchronized Start Sample Script Fragment sccccgecccosrsecciceecentwessgeresascedeleeseceieeveentuseseterceres 94 DAS DSM SEU LS sg xeos ecsceritad urunane a a R e E R E E A E Taa 96 TAL REN Sample eiennenn ianea aneia eaaa a aaaea AE Ta aE 97 DAZ PEIN Samples eeii acensir anis a aE EEEE Saa ES aE 99 TA3 SHINE Sample ssec ignia i aa a a ai a A a neatacescee 100 TAA Micro Interrupt Sample ago sseds ah ews ees asotc do cew nade eas E a R 102 Ves TCL Code Fragments ic sionis EE AEE EE ETA EEE RE 103 7 5 1 Required Global Variables for TCL samples esesseeesesesseseresrersesrrssrseresressrrererresseeeres 103 73 2 Communications FUNCIONS sessirnir eieaa anai aei dirii 104 7 5 3 Putting it all Together Beginning of the script ssssssesesseeseserssrersesressrseresressereresrenseeer 109 7 5 4 Putting it all Together Ending the script eesseesseseeseeseseseesseserstsrresrrsrrseresressesererresseesees 110 Phe Report Strings orreee a e E ERE EE RETRE 110 Ta Eror SNES Sea aE raae E TA E E EE EO 110 7 8 For DLS 5200 DLS 5204 DLS 5500 users s seseeseseeseeseeesssrersereserriesresrrsereseessrseresresseserss 115 Chapter fmm 021610112 116 Lc meee me ere oe ree eee ere ee 117 EU AS ssassn ieena oe oisean ae a aain EEE E EE Eer Sae aS Aea ESER E EESE 118 Gee System SPS MNCL ONS sisao nirna E E E caaanedceisegeatees 118 8 3 Mechanical and Environmental Specifications s sessesseeeseseseses
61. and 8 DLS 5409s only 2 shown 2 11 C onnecting the Ferrite Clamps Spirent Communications PN 71 006581 Page 22 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide To ensure EMC compliance attach the enclosed ferrite clamp to the Ethernet port cable close to the unit Also for each DLS 5410DC injector two ferrite clamps 28A3851 0A2 will be mounted on the BNC cables coming from DLS 5800 e One ferrite clamp is installed on the group of BNC cables corresponding to channels to 4 for Injector Side A e One ferrite clamp is installed on the group of BNC cables corresponding to channels 1 to 4 for Injector Side B The two ferrite clamps are provided in the accessory package of the DLS 5410DC units Ferrite clamps are not required for the BNC connection to DLS 5409 2 12 Connecting to Power To connect to power e Make sure that the ON OFF switch on the back of DLS 5800 is set to OFF e Connect the power input on the DLS 5800 back panel to an AC line with 90 264 VAC 50 to 60 Hz auto ranging Use the power cord provided in the accessories package e If using DLS 5410DC 1 Verify the power supply selector located on the front panel of the DLS 5P02 Power Supply which is provided in the accessories package of DLS 5410DC Set it to the appropriate voltage setting 2 Make sure that the ON OFF switch on the front panel of the DLS 5P02 Power Supply is set to OFF 3 Insert the round DIN connector of the DLS 5P02 Powe
62. ars Spirent Communications PN 71 006581 Page 41 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide g DLS 5410 Control Unit 1 of 2 x Side A Side B OK Channel 1 PEIN SHINE GENERAL Channel 5 PEIN 2 SHINE GENERAL M ON Common Differential C PEIN SHINE M ON Common Differential C PEIN SHINE _ Start Start PEIN Repetitions O free run 0 ae PEIN Repetitions O free run 0 r Stop Stop SHINE Duration 30 65000 mSec 30 anne SHINE Duration 30 65000 mSec 30 z Channel 2 REIN GENERAL Channel 6 REIN GENERAL M ON C Common Differential M ON C Common Differential Duration 50 20000 uSec 50 E32 Duration 50 20000 uSec 50 pac Frequency 1 200 Hz 1 Stop Frequency 1 200 Hz fi Stop Repetitions O free run 0 Repetitions O free run 0 Channel 3 DSM1 GENERAL DSM Channel 7 DSM1 GENERAL DSM M ON C Common Differential Edit M ON C Common Differential Edt Channel 4 DSM2 GENERAL Channel 8 DSM2 GENERAL M ON C Common Differential A ON C Common Differential NOTE Remember to CALCULATE the sample from the main GUI screen AFTER changing the channel coupling mode Common Differential Otherwise signal levels will be incorrect Figure 3 10 DLS 5410 Control Dialog 3 10 1 DLS 5410DC Channels The DLS 5410DC allocates channels for specific purposes using the following table Chann
63. begin gt the left column is the carrier frequency in Hz while the right column is for carrier power in dBm DLS 5800 is limited to 150 discrete tones Since the clock is not defined the default clock 32 MHz will be applied Because the reference impedance is not defined the default impedance 100 will be used Currently Spirent supports 100 Q 135 Q and 150 Q reference impedance In power lt 10 0 gt 10 0 dBm is only for reference the display power in the GUI will depend on the actual power output ver lt gt and standard lt gt are also for reference only i e they do not impact output at all clic lt gt is a command for ETSI load compensation that is described in TS 101 388 documentation Spirent Communications PN 71 006581 Page 57 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide If user needs ETSI load compensation clic command must be either clic lt ETSI1000hm clc gt or clic lt ETSI135Ohm cle gt where clic lt ETSI100Ohm clc gt means 100 Q reference impedance while clic lt ETSI1350hm cle gt 135 Q impedance The above example will have the same features as below example Table 5 2 Additional commands explicitly setting clock and impedance to defaults Table 5 3 Modulated carrier example Spirent Communications name lt Format_Example_default_rfi gt standard lt use defined gt ver lt 1 0 gt clk lt 32 MHz gt clic lt gt depth lt gt power lt 10 0 dBm gt data
64. cause a very short interruption in the end to end continuity of a wireline Some testing standards require the application of repeated micro interruptions within a specified amount of time A micro interrupt can be specified to last 1 60 000 ms The noise injector is updated with new micro interrupt parameters whenever you press Enter or move from one field to another The Side A and Side B radio buttons select the noise injector output side at which the micro interrupt will take place To start the micro interrupt sequence click the Start button The first micro interrupt is generated immediately and then periodically at the frequency specified in the nterrupt every field The total number of micro interrupts is specified in the Total number of interrupts field Note The Interrupt Time field must be shorter than the Interrupt every field When the Start button is clicked the DLS 5800 Control Software verifies that the micro interrupt values entered are valid and that the nterrupt Time field is shorter than the Interrupt every field Spirent Communications PN 71 006581 Page 45 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 3 11 Remote Control Although the DLS 5800 Control Software is very easy to use in some cases you may want to control the DLS 5800 DLS 5410DC from a remote computer This is especially useful when integrating the DLS 5800 5410 into a larger automated test environment The DLS 5800 Control Software
65. ch channel can record and play back a maximum of 16 Megasamples 6 4 4 Output Scaling And Injector Loss Normally the unit is used with an external injector circuit that performs two main functions e to condition the signal so that it is balanced e to provide a high impedance or current output from the injector so that when the injector is attached to the line it does not significantly affect the modem signal already on the line Normally the injector circuit has a signal loss through it For instructions on how to measure the loss of an injector see Appendix A Measuring Injection Loss The injector losses for both DLS 5410DC and DLS 5409 are built in to the DLS 5800 Control Software The DLS 5800 software automatically sets a gain equal to the injector loss and the signal is correspondingly higher at the BNC back panel connectors of the DLS 5800 The graph does not display the entire _td file from start to finish of the file format 6 4 5 Maximum Level and Overload Conditions There are several ways in which you can accidentally overload the output Normally the DLS 5800 warns you if this happens Spirent Communications PN 71 006581 Page 66 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide e If the td file contains values outside the range of 0 to 16383 the software rejects the whole file and generates an error message You might indirectly overload the channel by specifying inappropriate IL and Level settings For example t
66. cket loop until all inactive set bActive 1 while bActive 1 set ret IsFunctionActive channellist _getparamstate if ret set bActive 0 Close 7 4 2 PEIN Sample PEPER TE EET EE TEEPE EEE TE PETE EET ETE EEE PETE TEE EEE MAIN Scipt AAAHHH ARAA HAHAHHA TEE EEE EEE EEE EEE DLS 5800 set ip 10 20 2 44 local set ip 127 0 0 1 R H TEETER EEE TERETE H H H H H HHHH set port 2001 fire up the box Open ip port set cmd SET M_INJ_CHAN set state _ STATE set mode _ MODE set cmdclose set channellist list 1 5 9 13 17 21 set m_inj M_INJ_ Spirent Communications PN 71 006581 Page 99 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide set duration REIN DURATION set _frequency _REIN_ FREQUENCY set repetitions PEIN REPETITIONS set _start PEIN START set _stop _PEIN_STOP set _getparamstate _PEIN_STATE foreach chn channellist set chan CHAN append chan chn puts Testing PEIN synchronization GET command on chan write_socket STX SET m_inj chan _repetitions VAL 1 ETX read_socket write_socket STX SET m_inj chan _start ETX read_socket loop until all inactive set bActive 1 while bActive 1 set ret IsFunctionActive channellist _getparamstate if ret set bActive 0 Close 7 4 3 SHINE Sample PEPE EEE PETE EE TEEPE EEE PETE PETE EET EEE AHAHAHHA AHHA EE MAIN Scipt PEPE EEE PETE PETER TEEPE EET PETE EEE
67. couple of seconds then turning it GREEN again This helps identify individual DLS 5410DC units in order to make the correct connections DLS 5409 is a passive injector with no communications or control Thus after you click Apply just click OK to close the Injector Configuration dialog 3 6 Quick Start Generating a Noise Sample This procedure provides you with the basics to quickly select one or more noise profiles and generate a noise sample from them To configure and generate a noise sample for the DLS 5800 If it is not already running launch the DLS 5800 application from Start All Programs Spirent Communications DLS 5800 DLS 5800 1 From the DLS 5800 Control Software main window use the browsing tree at the left to locate the desired noise file s 2 Click on file names to load the files into the workspace 3 Make any required settings for example Calibration Impedance 4 Choose the Target Channel from the Noise Calculation area and select the Sample Number required 5 If using DLS 5410 from the DLS 5410 pull down menu choose the appropriate injector to correspond to the target channel For example if you chose Channel 1 8 select Injector 1 and for Channels 9 16 choose Injector 2 You will see the Spirent Communications PN 71 006581 Page 30 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide DLS 5410 Control dialog for the specified injector unit 6 If using DLS 5410 for the target channel se
68. ct name platform type identification expiration date and key 4 Click the Add Licenses button to add additional noise licenses Note You can also access this window without starting the DLS 5800 Control Software Select Start Programs Spirent Communications DLS 5800 License Info Warning Licensed noise files supplied by Spirent Communications must not be moved in the directory structure A licensing failure will occur if any of the enc encrypted file types are moved Warning Do not install a second NIC card into the DLS 5800 chassis This will cause license checking to fail you will no longer be able to start the DLS 5800 Control Software and your noise file licenses will no longer be valid Spirent Communications PN 71 006581 Page 48 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Chapter 4 Crosstalk Noise Profiles Spirent Communications PN 71 006581 Page 49 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 4 1 Introduction A noise profile is a Power Spectral Density PSD description of the crosstalk noise as it is observed at the receiver of the xDSL modem under test near the point of injection It is generated and applied as follows The DLS 5800 reads a file carrying a noise profile that describes what kind of noise has to be generated this is in ASCII frequency vs power The DLS 5800 synthesizes and generates the noise PSD and applies it via a noise injection mechanism onto the wireline
69. cted work areas the equipment must be contained in ESD protective packaging Equipment that is received in ESD protective packaging must be opened either by a person who is properly grounded or at an ESD protected workstation e Any racks or carts used for the temporary storage or transport of ESDS equipment must be grounded either by drag chains or through direct connection to earth ground Loose parts that are not protected by ESD safe packaging must not be transported on carts 11 2 Workstation Preparation The ideal setup for working with ESDS equipment is a workstation designed specifically for that purpose Please follow the requirements listed below to prepare a proper ESD protected workstation Spirent Communications PN 71 006581 Page 127 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide The ESD Ground must be the equipment earth ground Equipment earth ground is the electrical ground green wire at the receptacles An ESD protected workstation consists of a table or workbench with a static dissipative surface or mat that is connected to earth ground A resistor in the grounding wire is optional providing that surface resistance to ground is gt 105 to lt 109 Q The workstation must provide for the connection of a wrist strap The wrist strap must contain a current limiting resistor with a value from gt 250K to lt 10M Q ESD protective flooring or floor mats are required when floor grounding devices foot straps foo
70. ctly against the front panel as this may scratch the surface of the unit e Mark all shipments with labels indicating that the contents are fragile e Ensure that the Return Material Authorization RMA number is shown on the outside of the package s if you are sending a unit back to the factory Spirent Communications PN 71 006581 Page 17 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 2 3 Front Panel DLS 5800 and Connections The DLS 5800 has a locking front panel door behind which are the Power and Reset switches USB ports LED indicators the DVD RW drive etc Figure 2 1 shows the main components under the front panel The DLS 5800 front panel main components are as follows e Rack mount carrying handles e Two USB ports These can be used for a keyboard mouse or for memory devices e Power switch momentary switch e Reset button momentary switch e LED indicator for Power e LED indicator for HDD e DVD RW drive e Air Filter for the cooling fan Screw to access System Reset Switch the air filter Screw to lock DYD RW drive Air filter the top cover Blank Plates 1 USB ports Power ON OFF switch HDD LED Power LED Figure 2 1 DLS 5800 Front Panel 2 4 Accessing the Power Switch Reset Button and Drives The power switch reset button and drives are located behind the locking front panel door Ensure you have completed all back panel connections before opening the locking front panel door and turning
71. cy Domain Crosstalk files Time Domain based noise types have a range of 3 dB to 7 dB Frequency based noise PSDs have a range of 3 dB to 9 dB If you need to change the power level by an amount that exceeds the MicroGain range edit the Level or Offset in the Noise Attribute Editing window then recalculate and regenerate the output Impulse noise types are not supported with MicroGain functionality 3 7 5 3 Spectral Monitor Graph The display within the channel output window Figure 3 8 allows you to monitor the following spectra of the noise shape you are fine tuning Spirent Communications PN 71 006581 Page 38 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide e The blue line indicates the desired spectrum as specified in the Noise Profile e The black line denotes the spectrum of the actual Noise Sample as it has been downloaded into the DLS 5800 hardware This is a calculated spectrum but it is based on the actual Noise Sample The black curve provides a realistic prediction of how the output signal will look when measured with a spectrum analyzer When selecting Time Domain profiles the graph displays amplitude vs time 3 8 Custom Noise Files The DLS 5800 Control Software allows users to save the calculated noise sample for later use The advantage of this is that loading the pre calculated sample is much faster than loading noise profiles and then recalculating a new sample Any valid calculated sample can be saved a
72. d recently published user manuals e Download application notes e Download software updates e Download firmware updates e Request demo software e License fulfillment e Many other useful tools Alternatively see contact information below Americas 1 800 SPIRENT 774 7368 for US and Canada only From int 1 818 676 2616 Fax 1 818 880 9154 Email support spirent com China 86 10 8233 0033 86 800 810 9529 Email supportchina spirent com EMEA 33 1 6137 2270 Email support spirent com Spirent Communications Inc 26750 Agoura Road Calabasas CA 91302 Spirent Communications PN 71 006581 Page 10 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 1 6 System Overview The DLS 5800 system allows you to generate standards based DLS 5Bxx Noise Libraries or customer generated noises with a bandwidth of up to 30 MHz The DLS 5410DC Noise Injector lets you apply these noises to a line in either differential or common mode and provides additional high precision timed impulse functionality The DLS 5409 Noise Injector applies the noise generated by DLS 5800 in differential mode Figure 1 3 DLS 5800 Figure 1 2 DLS 5410DC Figure 1 1 DLS 5409 The DLS 5800 has four independent output ports per card all on the back panel A maximum of 6 noise cards may be installed on the DLS 5800 Several upgrade options are available Please contact Spirent Communications on pricing for these upgrades 1 6 1 Hardware
73. der test Generator G2 is similar to G1 but represents the combined equivalent disturbance at the transmitter side of the xDSL modem under test Generator G3 represents background noise if any For now ETSI currently sets background noise to zero Generator G4 represents white noise To generate white noise test equipment must be designed with an extremely low noise floor generally at 140 dBm Hz or lower The transfer function H f L models the length and frequency dependency of the NEXT crosstalk coupling The transfer function is dependent of the loop set number and changes slightly with the length of the test loop and is well defined in ETSI xDSL standards The transfer function H2 f L models the length and frequency dependency of the FEXT crosstalk coupling The transfer function is dependent of the loop set number and changes significantly with the length of the test loop and is well PN 71 006581 Page 51 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide defined in ETSI xDSL standards The transfer functions H f L and H gt f L are defined in Table 4 1for calculating the NEXT and FEXT coupling functions Table 4 1 Definition of Crosstalk Transfer Functions Half L Kyn f f9 75 x 1 sT F L I4 Ho f L Kyg x f fp x L LO x Isr f L I Kyn 10 50 20 9 0032 f 1 MHz K 10 45 20 0 0056 L 1 km Sto f L test loop transfer function Because the signals or transfer
74. dware accuracy of these gain factors set a limit to the overall accuracy of the output level of the impairment generator The DLS 5800 software does not compensate for these systemic hardware errors of the output levels since it would require a manual calibration of each gain factor by a level detector with a much higher accuracy 5 5 Reference Ingress Noise Profile The reference tests assume that the crosstalk noise generation is deactivated that the output levels are measured with an accurate true power meter or true RMS meter and that their spectra are monitored with a spectrum analyzer Table 5 4 Reference Ingress Noise Profiles for Functional Checks Profile A1 is the same as Example 1 in 7ab e 5 7 Profile Frequency Hz Power depth lt m gt dBm Ingress ref Profile A1 300e3 10 0 Ingress ref Profile A2 1000e3 30 0 31 The test should verify that for each reference profile the correct power levels are observed on the true power meter and that the spectrum analyzer displays the correct spectral width The accuracy should be within the combined accuracy of the AWG card and the true power meter for example within 0 5 dB Figure 5 1 illustrates a spectral shape that can be observed when the signal is fed to a spectrum analyzer Ingress reference Profile A1 Table 5 1 Ingress Noise Profile ASCII Format amp example generates a single unmodulated carrier of 10 dBm at 300 kHz The true RMS meter should display the same 10 d
75. e needs to be converted to a 0 to 16383 range with 8191 5 as the mean value 6 4 9 Text File Editor You can use any ASCII text editor that does not add extra characters and can handle the number of lines in the file For this reason we recommend you avoid e Microsoft Excel not long enough e Notepad not long enough e Wordpad exe slow output may be incorrect e Word processors in general which add formatting characters 6 4 10 Total File Length The body of the data file can be almost any length from a few samples to maximum length The maximum length of the body of the file is 16 Mbytes 224 bytes The minimum recommended length depends on the nature of the amplitude variations or probability distribution function pdf of the file that you have calculated but for Gaussian noise should not be less than 2 Mbytes and preferably 4 6 4 11 Re using the _ td dat file As stated previously when you load a user defined time domain file in txt or prn format the DLS 5800 Control Software creates a new file having the same name but with the extension _td dat If your original file is large this step may take a long time You can avoid having to repeat this lengthy process by loading the software generated _td dat file on subsequent loads rather than re loading the original txt file Also note that this _td dat file will be usable on other DLS 5800 platforms Spirent Communications PN 71 006581 Page 68 of 128 DLS 5800 DL
76. e applied simultaneously Note each channel can be enabled to inject either in differential mode or in common mode A channel cannot simultaneously be injected in both differential and common mode NOTE that the DLS 5800 when fully loaded with 6 AWG noise cards must use 3 DLS 5410 Noise Injection or 24 DLS 5409 units Using 3 DLS 5410 units the configuration allows a user to inject noise on up to 3 wireline simulator noise generator test beds from 1 single DLS 5800 noise generator For more information on the compatible simulators see User Documentation on page 8 Spirent Communications PN 71 006581 Page 14 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 1 8 DLS 5800 Features The DLS 5800 combines PC architecture custom Arbitrary Waveform Generator AWG module s and Spirent control software to generate noise This combination of hardware and software results in an impairment generator that generates precision noise for testing of XDSL network access equipment With the DLS 5800 you can generate noise that is a realistic replica of the spectral pollution induced in a wire pair of a real network access cable The DLS 5800 software implements the following noise sources e A crosstalk noise source to generate a replica of the noise that originates from xDSL transmission equipment disturbers that make use of other wire pairs in the same cable The spectrum of crosstalk noise is predominantly continuous in nature e An opt
77. e characteristics to enable a realistic imitation of spectrally polluted operational access networks Noise is e Frequency dependent e Dependent on the length of the test loop since FEXT coupling functions between wire pairs are length dependent e Usually different for downstream and upstream performance tests depending on the application A noise profile is a Power Spectral Density PSD description of the crosstalk noise as it is observed at the receiver of the xDSL modem under test near the point of injection so you use a different noise profile for each measurement Spirent Communications PN 71 006581 Page 13 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Wireline Simulator Figure 1 4 Example of Test System Setup Figure 1 4 shows an example of a typical test setup using the DLS 5800 2 AWG card configuration and a DLS 5410DC In this example the noises generated by channels 1 to 4 of DLS 5800 are injected by DLS 5410DC at SIDE A Similarly the noises generated by channels 5 to 8 of DLS 5800 are injected by DLS 5410DC at SIDE B The DLS 5410DC allows each channel to be injected either in differential mode or in common mode All noises that will be injected in differential mode are summed together by enabling the respective channels all noises that will be injected in common mode are summed together by enabling the respective channels For each SIDE A or SIDE B differential and common mode injection can b
78. e information on these programs 1 4 3 Where to Go from Here For more information about e Controlling the DLS 5800 5410DC 5409 system see Chapter 3 DLS 5800 Software e Creating custom noise files see Chapter 5 Crosstalk Noise Profiles and Chapter 6 Ingress Noise Profiles Optional You should read Getting Started thoroughly before powering up the system The Spirent Communications PN 71 006581 Page 9 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide remainder of this manual contains information about control specifications performance and warranty We recommend you use our software to configure and control the noise generator However we describe common and device specific message sets that can be sent to the noise generator and injector in Remote Control Some features covered in this manual may not be available with the specific hardware and software configuration on your noise generator Contact a Spirent Communications sales representative to discuss upgrades If you have any questions after reading this manual please contact a member of the Customer Service team See Support Services Contact Information 1 5 Support Services Contact Information We encourage our customers to take advantage of the self service tools available on our Spirent Customer Service Centre website http support spirent com e Submit or check the status of a service request e Check the status of your RMA e Downloa
79. e uiccccatecests elon tienietncdad adalat enietils dance cab devnadadbacebndevodanedatiadadecnde dada 16 2 1 Receiving and Unpacking the Unit isciesiciseccceccveestaubeccicsinculuthcraced senhentstateeqnstd adele caut teed cauiectauied 17 2 2 Returning the DLS 5800 DLS 5410DC DLS 5409 0 ei ceeceeeseeesseceeeeseeesneecnaeesaeeteneeenees 17 2 3 Front Panel DLS 5800 and Connecti ons wssaceseieesceeenceccaioee een eine edecsiees 18 2 4 Accessing the Power Switch Reset Button and Drives 0 ceeceeeseceeeeeceeeeeceeeeecseeeeeeneeeesaes 18 2 5 Back Panel DLS 5800 Components and Connections eeceeeeeessecsseceeeeeeneeeneesnaeeeeenseeenaees 18 2 6 Front Panel DLS 5410DC and Connections ig avec gecreieiGnuiiivanuualandundndedids 20 2 7 Rear Panel DLS 5410DC and Connections cscs ccesicesessnscessceadcedp ceca nczancndectutesteedsondnessossenceinerevends 20 2 9 DLS 5409 COMO sec foccastersrecnccatcosenesvundacs eunlea sew edeaseieosdcwpndalas easleaeteveedsapaleruaceedadametees 20 2 9 Connecting the Mouse Keyboard and Monitor ccceescecesseecesececeeececeeeeecseneeceeeeecsseeessneeeesaes 21 2 10 Syst m Hardware SC MUS eg crc cae rs ce cen eier a i a a aaa aa eee 21 2 11 Connecting the Ferrite Clamps erise E 22 2 12 Connecting to POWEE sisscisriicesciri seser is esna Eise Nai ASERS er TASE EEEa KETENE A EEEE EESE 23 2 13 Controlling DLS 5800 5410DC 5409 vcs cesasesasacnsssenvindsseeanpadsesuseensgivavassenveatvaasu pred seevdiwataane 24
80. e various properties of the generated noise and controlling the DLS 5410DC Noise Injector The software also supports the use of DLS 5409 which is a passive injector which does not require any control The DLS 5800 can simulate the combined spectral pollution from hundreds of arbitrary xDSL transmission systems that use the same multi wire telephony cable Several add on applications come pre packaged with the DLS 5800 to further assist users at developing various noise types in particular the DLS 5C60 5D 10 custom xtalk noise creation tool and DLS 5C80 custom impulse noise creation tool For more information about the noise shape configurations see e Chapter 5 Crosstalk Noise Profiles e Chapter 6 Ingress Noise Profiles e Chapter 7 Time Domain Noise Profiles 3 2 Overview of the DLS 5800 Software Features The DLS 5800 Control Software calculates a noise sample from the noise profiles that you select The noise sample is downloaded to the DLS 5800 s built in AWG card which converts the sample into an analog signal The DLS 5800 outputs the signal to the inputs of a suitable Noise Injector which injects the signal into a real or simulated wire line The DLS 5800 is designed for use with the Spirent DLS 5409 Passive Injector or DLS 5410DC Noise Injector The DLS 5410DC Noise Injector provides on off switching and common or differential mode injection as well as high precision timed switching in order to create impul
81. eck box is clear not checked Valid channels for REIN are 2 6 10 14 18 and 22 2 Using the main GUI of the DLS 5800 Control Software define load and generate an appropriate noise sample on one of the channels that corresponds to an injector channel that supports REIN channels 2 6 10 14 18 or 22 3 On the DLS 5410 Control dialog set the desired duration frequency and number of repetitions of the signal Click Start 3 10 1 5 DSM Dynamic Spectrum Management Modems which implement Dynamic Spectrum Management DSM change characteristics Spirent Communications PN 71 006581 Page 43 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide of their transmitted signals depending on the line conditions that they encounter This will cause corresponding changes in the resulting crosstalk seen on other cables within the binder When used with the DLS 5410DC the DLS 5800 is capable of simulating this changing noise environment by allowing you to create individual noise profiles called frames which will be stitched together in a DSM sequence Each frame can play for a specific amount of time from 30 to 300 seconds When the DSM sequence is played back the DLS 5800 will automatically load each frame and play it for the specific amount of time In order to ensure that the transitions between frames are seamless the DLS 5410DC switches between 2 generator channels 1 To use DSM you must first create all the frames t
82. eem System v Channel 1 Channel 2 Channel 3 ADSL Channel 4 ADSL Channel 5 ADSL Channel 6 Ktk de Channel 7 ies Channel 8 dmt Channel 9 Er Channel 10 50K Channel 11 50K_ Channel 12 Noise Channel 13 Noise Channel 14 Noise Channel 15 Noise Channel 16 Noise G White Mnice Figure 3 7 Channel Control pull down showing Channel 1 active Spirent Communications PN 71 006581 Page 37 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Channel 1 Output Output On Off MicroGain Power dB mHz 1200 1300 Frequency kHz Combined Noise Status Sampling Rate 100 MHz talk Crest Factor Failed Injector Loss 15 3 dB Calibration Impedance 100 Ohms Input Files TU T_G dmt_ADSL_Up_ Next_Loop1 3000ft_xtk dat Level 50 3 dB Figure 3 8 Channel output dialog 3 7 5 1 Output On Off Click the Off radio button to stop the generation of the output signal by the DLS 5800 AWG noise card Click the On radio button to resume the output Again note that this button deals only with the noise generator not with the DLS 5410DC injector 3 7 5 2 MicroGain The MicroGain field allows you to enter small power level changes without requiring a recalculation of the Noise Sample This allows you to make power level changes with virtually no delay The MicroGain field increases or decreases the aggregate output power level and is used for Time Domain or Frequen
83. el Injector 1 2 3 Purpose 1 9 17 Side A Channel 1 PEIN SHINE General purpose 2 10 18 Side A Channel 2 REIN General purpose 3 11 19 Side A Channel 3 DSM1 General purpose 4 12 20 Side A Channel 4 DSM2 General purpose 5 13 21 Side B Channel 1 PEIN SHINE General purpose 6 14 22 Side B Channel 2 REIN General purpose 7 15 23 Side B Channel 3 DSM1 General purpose 8 16 24 Side B Channel 4 DSM2 General purpose Table 3 2 DLS 5410 function channel allocations Note that the following instructions refer to the entire set of available channels for a 6 card 24 channel DLS 5800 DLS 5410DC The exact available channels will change depending on your hardware configuration 3 10 1 1 General purpose General purpose usage means that the DLS 5410DC injector input when switched on is connected directly to the appropriate side output without any further switching or processing Any of the 8 inputs on the DLS 5410DC can be used in this way General Spirent Communications PN 71 006581 Page 42 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide purpose usage means that the signal applied by the generator is not processed in any way by the DLS 5410DC Additionally as shown previously the DLS 5410DC offers additional functions on several of its channels 3 10 1 2 PEIN Prolonged Electrical Impulse Noise The DLS 5410 generates PEIN signals according to TR 114 Issue 1 D 3 3 1 On the DLS 5410 Control dial
84. functions of the individual building blocks change when the test conditions are altered the output noise of the impairment generator changes as well This occurs when changing e from upstream testing to downstream testing e the test loop e the test loop length e the bit rate of the xDSL modem under test e the environmental scenario from noise model A to B or C etc 4 3 Definitions of Alien Self and Full Noise Noise generators G1 and G2 represent the combined equivalent disturbance of a mixture of impairing xDSL systems Usually the xDSL modem under test is one of them When changing the bit rate of the xDSL modem under test its transmission spectrum may change as well In the ETSI noise scenarios it is assumed that such a modem is deployed in a cable connected to similar systems So the crosstalk noise may change as well when the bit rate of the xDSL modem under test changes To cope with this in a convenient way ETSI xDSL standards identified the following crosstalk components e Alien noise is the combined equivalent disturbance caused by modems that are different from the xDSL modem under test For instance using ADSL and HDSL disturbers when testing SDSL Recent ETSI xDSL standards define the Alien noise by means of a simple table describing their PSD Self noise is the combined equivalent disturbance caused by modems that are equal to the xDSL modem under test For instance using SDSL disturbers when te
85. g Earthing These units consists of an exposed metal chassis that must connect directly to a ground earth by means of a protective grounding conductor in the power cord The symbol used to indicate a protective grounding conductor terminal in the equipment is shown in Symbols 10 1 2 Before Operating the Unit e Inspect the equipment for any signs of damage and read this manual thoroughly e Become familiar with all safety symbols and instructions in this manual to ensure that the equipment is used and maintained safely e Warning To avoid risk of injury or death ALWAYS observe the following precautions before operating the unit e Use only a power supply cord with a protective grounding terminal e Connect the power supply cord only to a power outlet equipped with a protective earth contact Never connect to an extension cord that is not equipped with this feature Do not interrupt the protective earth connection e Caution When lifting or moving the units do not touch the cooling fan which is located at the back of the unit Lift the unit by using the handles on the front 10 1 3 Power Supply Requirements The units can operate from any single phase AC power source that supplies between 100 VAC and 240 VAC 10 at a frequency range of 50 Hz to 60 Hz Warning To avoid electrical shock do not operate the equipment if it shows any sign of damage to any portion of its exterior surface such as the outer casting or panels 10 1
86. hannels must be on the same noise card If you attempt to start channels on different noise cards a VALUE_IS_ OUT_OF_RANGE error is returned Spirent Communications PN 71 006581 Page 88 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Synchronized Start Sequence M_SELECT_OUTPUT M_RESET_CHANNEL M_LOAD_FILE M_NOISE_GAIN M_GENERATE_SAMPLE M_LOAD_OUTPUT_BUFFER M_SYNCSTART 7 4 Sample Remote Control Sequences Here are some samples showing how to remotely control the DLS 5800 and DLS 5410DC If you are using DLS 5409 you will need to comment out or remove the appropriate lines as shown in the listings The sequences are written in TCL Of course you can use any programming language which supports TCP IP communications Even if you are not using TCL you can at least see the correct sequence of writes and reads for various operations Simply replace the write_socket and read_socket calls with calls to whatever your functions are for writing to and reading the socket Note that read_socket is called after every call to write_socket Although we have not shown it here a well written script should check the data received by read_socket and ensure that it is not a TRAP message indicating an error Rather if the message received by the DLS 5800 was processed successfully most commands will cause the DLS 5800 to respond with the string STX SET REPORT VAL CMD_SUCCEEDED ETX At the end of this section you will find various TCL fragmen
87. hat you wish to use in your sequence This is done from the main GUI of the DLS 5800 Control Software For each frame a Load the noise files you wish to use b Choose a target channel and click Calculate c Select File Save DSM Frame d Optionally enter some descriptive text at the Input your Noise Information prompt e Click OK f Enter a name for the DSM frame Frame files must be stored in C Program Files Spirent Communications DLS 5800 DSM Frames 2 Once you have created all the frames you now need to define a DSM sequence a Select DLS 5410 then select the injector which affects the channels you wish to use Click the appropriate Side A or Side B Edit button under DSM g Edit DSM Sequence Edit Side A Sequence Edit Side B Sequence Load Sequence Save Sequence Load Sequence Save Sequence Add New Frame Before Add New Frame After Add New Frame Before Add New Frame After Remove Selected Frame Remove All Frames Remove Selected Frame Remove All Frames Duration values must be between 30 and 300 seconds Duration values must be between 30 and 300 seconds Frame Duration s File Browse Frame _ Duration s File Browse 1 OK b The Edit DSM Sequence dialog appears Figure 3 11 Edit DSM dialog Spirent Communications PN 71 006581 Page 44 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide c E
88. he following data set 8192 8505 8771 8948 9011 8948 8771 8505 8192 7878 7612 7435 7372 7435 7612 7878 has an RMS value of 579 23 If the Level in the file header is set to 15 dB and the IL of the injector is 0 the above data set will not overload the DLS 5800 If however the IL is set to 19 3 dB the above data set will overload the DLS 5800 In this case the DLS 5800 will not process the file 6 4 6 Calculation of RMS As noted before the RMS value is the same as the standard deviation of the file It is calculated according to the following formula N 1 A mean A n 0 where A is the amplitude of the samples 6 4 7 Converting to dBm from Volts The output from the DLS 5800 is specified as power output in dBm into a 50 Q load 0 dBm corresponds to 1 mW This means that 0 dBm provides 0 2236 Volts of output across the 50 Q load You can convert voltages to dBm for the output of the DLS 5800 by using the following formula Output in dBm 20 log V 0 2236 where V is the RMS voltage across the 50 Q load 6 4 8 File Generation The most convenient way of generating a large digest of samples is with some type of mathematical software Output the data to an ASCII text file with a prn or txt file extension Some software applications generate values in the range of 1 to 1 with 0 as the mean value This Spirent Communications PN 71 006581 Page 67 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guid
89. he observed signal when using this new method 5 6 1 Practical Modulation Left And Right Sidebands With 10 Lines Total In the actual noise spectra there are 10 additional lines symmetrical around the main AM carrier all with amplitudes of 1 or 20dB below the main carrier The total power added to the main carrier by the side lobes would be 10 or a 0 41 power increase The amplitude envelope of the composite AM signal for this 5 tone based signal shown in Figure 5 2 is displayed in Figure 5 3 The tones are around 5 kHz 1 5 kHz 2 5 kHz 3 5 kHz and 4 5 kHz The frequencies are multiples of the repetition rate of the noise generator However the tones received some offset in frequency to make their frequencies odd multiples and mutually prime Spirent Communications PN 71 006581 Page 60 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Note that Figure 5 2 shows the envelope of the amplitude of the carrier with the modulation modeled with six aligned cosines each with amplitude of 20 of the carrier or with 10 lines in the AM sidebands fers Orca fotic 65 TM phett 1 6 Time samples x 40 Figure 5 2 Carrier Envelope amplitude recorded on an Oscilloscope 0 00 E 00 DLS 5B36 Modulation RFI Spetra Shape 2 00E 01 4 00E 01 6 00E 01 8 00E 01 1 00E 02 Frequency Hz 1 20E 02 9 94E 05 9 96 E 05 9 98E 05 1 00 E 06 1 00E 06 1 00E 06 1 01 E 06 Figure 5 3 Example of Five band RFI To
90. he wire pairs in a real cable is length dependent and this can have a significant impact on the crosstalk noise when upstream and downstream signals of xDSL modems do not use the same frequency band Figure 4 1 shows how various ETSI standards compose the crosstalk noise from isolated building blocks and is used for impairment testing in downstream as well as in upstream direction Spirent Communications PN 71 006581 Page 50 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Independent Crosstalk Noise Generators Transfer Functions Gl Sl HCD NEXT noise D i D Val G2 HfL S2 FEXT noise aan 5 D gt Al G3 S3 Background noise Cable independent lt a Probe White noise G4 el Level Cable independent Broadcast RF noise G5 s5 Cable independent o s Fixed powers fixed freq Amateur RF noise G6 s6 Cable independent Saj s o s Fixed power variable freq Impulsive noise G7 s7 Cable independent o Bursty in nature Figure 4 1 ETSI Functional Description of Crosstalk Noise Calculations Spirent Communications Generator G1 is an equivalent noise source that represents the combined equivalent disturbance of a mixture of impairing xDSL systems located at the receiver side of the xDSL modem under test Its noise spectrum is defined in the appropriated ETSI standards and may vary with the bitrate of the xDSL modem un
91. ile type Directory File location File Name Shows the noise file name and extension Level Shows the reference power level of the selected noise This level is also known as the 0 dB reference level calculated by Spirent across a specific calibration impedance Units Shows the units of measurement for the level field Disturbers Shows the number of disturbers for specific files that use this method of specifying level ANSI specifies some of its crosstalk files related to the quantity of disturbers within a binder group Note If the file does not use this method the field is grayed out Other Parameters Displays specific file properties for information purposes only ETSI complex load impedance file types will be displayed in this field as CLIC Complex Load Impedance Compensation e The DLS 5800 cannot combine time domain noise _td or impulse _imp files with any other type of noise files such as _xtk _td _rfi or _imp on the same channel e X Talk files can be combined with other xtalk files _xtk and with RFI files rfi 3 7 1 1 Clear Click the Clear button to delete all listed noise profiles from the combiner window 3 7 1 2 Copy from To apply the noise characteristics of a previously loaded channel to another channel select the channel in the Copy from drop down list The noise profile from the selected channel will be loaded into the combiner window Spirent Communications PN 71 006581 Page 32 of 128 DLS
92. ime domain based The DLS 5410DC Noise Injector can be used to apply these impairments to a real or simulated wireline in differential or common mode and adds high speed high precision hardware based signal switching in order to add impulse noise types such as REIN PEIN and SHINE as well as time varying noise sequences such as DSM Dynamic Spectrum Management The DLS 5409 Passive Noise Injector applies the impairments generated by DLS 5800 to a real or simulated wireline in differential mode PN 71 006581 Page 119 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Additionally various applications DLS 5C80 are available to help create custom impulse noises Item Crest Factor Execution Memory DLS 5800 Maximum Output DLS 5800 Maximum RMS Output DLS 5800 Output Impedance DLS 5800 Output Impedance DLS 5410DC Channel Noise Floor output Frequency Range Channel Dynamic Range DLS 5800 Effective Dynamic Range Accuracy of PSD Profile Accuracy of PSD Level Spirent Communications Description Greater than 5 in ETSI compliant mode using memory of 0 5 MegaWords or less By using a longer memory truly Gaussian distribution and crest factor greater than 5 can also be generated 32 MB 16 Megasamples for each channel 32 MB internal fast execution 10V 20 V p p unloaded 5 V 10 V p p into 50 Q 13 dBm into 50 Q with a crest factor of 5 50 Q single ended channels Differential mode g
93. iners Please keep these containers in case you need to ship these units to another location or for repair The DLS 5800 is a 4U high rack mountable unit The DLS 5410DC is a 1U high rack mountable instrument The DLS 5409 is a matchbox sized unit Items supplied with DLS 5800 e Front panel door key e USB mouse and keyboard e Pre installed licensed DLS 5800 Software e Operating System information e Optional licensed software Noise Files Contact Spirent for available noise files and optional upgrades e One 1 AC power cord Items supplied with DLS 5410DC e DLS 5P02 External Power supply with AC Power Cord and spare fuses e 8cables BNC BNC male e One pair of ferrite clamps e 1 USB A to B cable 6 ft e RJ45 CATS cables 2 cables of 1 ft 2 cables of 2 ft Note Confirm that you have received all the items on the list and report any discrepancies to Spirent Communications Also see Returning the DLS 5800 DLS 5410DC in the next section 2 2 Returning the DLS 5800 DLS 5410DC DLS 5409 Note An RMA number is mandatory and must be obtained from a Spirent Communications Customer Service center prior to shipping the unit see How to Contact Us for details on how to contact the nearest Customer Service center To return the DLS 5800 5410DC 5409 e Prepare the unit for shipment turn the power off disconnect all cables including the power cable and pack the unit in its original cartons Do not place any cables or accessories dire
94. ing Practices The DLS 5800 and DLS 5410DC contain electronic components that are sensitive to Electrostatic Discharge ESD damage To prevent premature component failure or latent product damage it is crucial that you handle this equipment following industry standard ESD handling practices Refer to Appendix D ESD Requirements for further information To clean the DLS 5800 or 5410DC unplug the respective AC power cord from the facility power and from the inlet at the back of the unit or power supply Use a lint free damp cloth for cleaning the exterior of the units only 1 4 Protecting Your Investment Spirent Communications is committed to providing the highest quality products and customer support possible An annual calibration is required to ensure that your units are operating properly Spirent Communications offers two cost effective optional service programs an extended Spirent Communications PN 71 006581 Page 8 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide warranty and a three year calibration agreement Each of these programs is designed to improve the ease and efficiency of servicing Spirent Communications test equipment 1 4 1 Extended Warranty Spirent Communications Extended Warranty gives two years in addition to the original one year manufacturer s warranty Under the warranty agreement Spirent Communications repairs any covered product that needs service during the warranty period At the time of re
95. ing contained in the Operating Manual is in direct violation of the standards of design manufacture and intended use of the equipment Spirent Communications assumes no liability for the customer s failure to comply with any of these requirements 10 2 1 Before Operating the Unit Inspect the equipment for any signs of damage and read the User Guide this document thoroughly Install the equipment as specified in the relevant section of this manual Ensure that the equipment and any devices or cords connected to it are properly grounded Ensure that the equipment has enough clearance at the front and at the rear minimum 4 inches or 100 mm to allow proper air ventilation 10 2 2 Operating the Unit Do not operate the equipment when its covers or panels have been removed Do not interrupt the protective grounding connection Any such action can lead to a potential shock hazard that could result in serious personal injury Do not operate equipment if an interruption to the protective grounding is suspected Use only the type of fuse specified Do not use repaired fuses and avoid any situation that could short circuit the fuse Unless absolutely necessary do not attempt to adjust or perform any maintenance or repair procedure when the equipment is opened and connected to a power source at the same time Any such procedure should only be performed by qualified service professional Do not attempt any adjustment maintenance or repair
96. ional RFI ingress noise source to generate a replica of the noise that originates from broadcast radio stations outside the cable The spectrum of ingress noise is predominantly discrete in nature In addition the DLS 5800 system supports e Several applications tools are available to create custom impulse noise DLS 5C80 e Application to create custom xtalk impairment files DLS 5C60 DLS 5D10 The DLS 5410DC Noise injector adds e Selectable per channel differential or common mode injection e DSM Dynamic Spectrum Management simulation capability to sequence or dynamically change impairment files instantaneously e Customizable REIN PEIN SHINE e Micro interrupts The DLS 5800 and 5410DC introduce a feature to help validate modems that support DSM functionality The DLS 5800 control software allows users to specify specific noise conditions which are stored as frames Users can then create sequences of frames and specify the playback duration for each frame Noise frames can be created using any DLS 5800 noise type including crosstalk time domain RFI and impulses Spirent Communications PN 71 006581 Page 15 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Chapter 2 Getting Started Spirent Communications PN 71 006581 Page 16 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 2 1 Receiving and Unpacking the Unit The noise generator and noise injection units have been shipped in reinforced shipping conta
97. lation signal mxo A t The normalized modulation noise ag of each individually modulated carrier is random and Spirent Communications PN 71 006581 Page 56 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Gaussian distributed in nature has an RMS value of ayms 1 has a crest factor of 2 to 5 or more and is uncorrelated with the modulation noise of each other modulated carrier in the ingress noise signal Ab The modulation width Ab of each modulated carrier shall be close to 2 x 5 KHz This is equivalent to creating 0 from white noise filtered by a low pass filter with a cut off frequency at Ab 2 and having a rectangular filter shape This modulation width represents the double sided modulation band used by AM broadcast stations 5 3 Description of the RFI Noise Profile File DLS 5B36 Format The ASCII format to describe an ingress noise profile is very simple After the header line data lt begin gt there are 2 columns the first column is the frequency in Hz and the second column is the power in dBm see Table 5 1 The rfi file must be named with extension _rfi dat Note the modulation depth will be the maximum 0 31 or 0 non Table 5 1 Ingress Noise Profile ASCII Format amp example name lt Format_Example_default_rfi gt standard lt use defined gt ver lt 1 0 gt clic lt gt depth lt gt power lt 10 0 dBm gt data lt begin gt 300000 10 Explanations After the line data lt
98. lect the coupling mode common or differential You may also wish to turn on the output for that channel 7 If using DLS 5410 click OK to close the DLS 5410 Control dialog or just click anywhere on the main GUI window 8 Click the Calculate button 9 Click Generate to load the calculated sample into the Noise Generator and start signal output on the previously selected target channel 10 If using DLS 5410 if you didn t previously turn on the channel output then return to the appropriate DLS 5410 Control dialog and do so now At this point the noise should be present at the output of the DLS 5409 or DLS 5410 Noise Injector 3 7 Control Software Window Layout Spirent DLS 5500 users will notice that in order to minimize the learning curve the DLS 5800 Control Software window remains similar to the DLS 5500 software The main GUI window is divided into five regions as shown in Figure 3 2 1 Work Space 2 Combined Noise 3 Noise Calculation 4 Noise Output X DLS 5800 Control Software File Channel Control System DLS 5410 Injector Loss 15 3 dB E as Work Space 9c E CHADLS 5800 SourceCode GUI Clear Copy from Calibration Impedance 100 Ohms amp D Noise Type l Directory File Name Level Units Disturbers Other Parameters Xtalk freque c test xt wnimhz_xtk dat 40 dBm Stalk freque c test xt wn5mhz_xtk dat 34 dBm Xtalk freque c
99. mat options are illustrated below Spirent Communications PN 71 006581 Page 39 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide For frequency domain noise files like xtk or _rfi these file types must contain file headings such as name offset disturber If a file type contains both the offset and disturber heading within the same ncd file the last heading will overwrite the previous value since both offset and disturber quantity values are directly related to each other Example Xtalk and RFI noise files Sname lt C Program Files Spirent Communications DLS 5204 NoiseFiles DSL Forum ADSL TR 048 Apr 2002 8 1 1 White Noise Impairment Downstream At ATU R White Noise xtk enc gt Soffset lt 20 dB gt Sname lt DLS5B17 1 0 NoiseFiles Broadband forum ADSL TR 048 Apr 2002 8 1 2 24 HDSL Impairment Downstream At ATU R HDSL Next 24DPlusWN_ xtk enc gt Sdisturber lt 24 gt Example Time Domain noise files Sname lt C Program Files Spirent Communications DLS 5204 NoiseFiles DSL Forum ADSL TR 048 Apr 2002 8 8 1 Impulse Tests Downstream At ATU R HDSL Next 20DPlusWN_td enc gt Soffset lt 2 dB gt Example Time Domain noise files with Impulse noise Sname lt C Program Files Spirent Communications DLS 5204 NoiseFiles DSL Forum ADSL TR 048 Apr 2002 8 8 1 Impulse Tests Downstream At ATU R HDSL Next 20DPlusWN_td enc gt Soffset lt 2 dB gt Sname lt C Program Files Spire
100. mmunications PN 71 006581 Page 33 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide e Offset dB Relative to Reference Level enter the level in dB for the specified noise in the text box and click Apply Placing a value in this field changes the total power based on the specified reference level of the noise file e Level This field identifies the reference power level of the noise selected This value is also known as the 0 dB reference level across the specified calibration impedance Enter a new level for the specified noise in the text box and click Apply e Disturbers NA grayed out 3 7 1 5 Remove Click Remove to remove the currently selected noise profile from the combiner window 3 7 2 Combined Noise Region The Combined Noise region Figure 3 4 provides a visual indicator of the noise characteristics for the noise files listed in the combiner window The combined noise parameters are only visible after a Target Channel has been selected followed by clicking Calculate in the Noise Calculation region Combined Noise View Signal aJa F E 3 a 4 600 1200 1800 Frequency kHz Sampling Rate 100 MHz Xtalk Crest Factor Passed Injector Loss 15 3 dB Figure 3 4 Combined Noise region The areas of the Combined Noise region are explained in the following sections 3 7 2 1 View Signal Click View Signal to produce a plot that shows various characteristics of the Noise Spirent Communications P
101. n IP address button e In the IP Address field enter the value as specified by your Network Administrator e Inthe Subnet Mask field enter the value as specified by your Network Administrator To obtain IP addresses dynamically e Select Control Panel gt Network gt Configuration e Select TCP IP from the list e Click on Properties e Select the IP Address tab e Click the Obtain an IP address automatically button 2 16 Controlling other Spirent Devices Your DLS 5800 may include other installed Spirent applications for controlling various xDSL wireline simulators Such applications may include DLS 1100 DLS 410B etc and these applications will use one of several possible communications interfaces depending on the hardware capabilities Some supported interfaces include RS 232C serial and IEEE 488 Spirent Communications PN 71 006581 Page 25 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Chapter 3 DLS 5800 Control Software Spirent Communications PN 71 006581 Page 26 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 3 1 Introduction This chapter explains the DLS 5800 Control Software which is factory installed on the DLS 5800 For information on controlling the DLS 5800 DLS 5410 and DLS 5409 using your own software see Chapter 8 Remote Control Programming The DLS 5800 Control Software is a Windows Graphical User Interface GUI which provides you with an easy intuitive method of configuring th
102. n number and shipping instructions freight prepaid to Spirent s location in the United States b Customer provides a written explanation of the defect or Software failure claimed by Customer and c the claimed defect actually exists and was not caused by neglect accident misuse improper installation improper repair fire flood lightning power surges earthquake or alteration Spirent will ship repaired Products to Customer freight prepaid based on reasonable best efforts after the receipt of defective Products Except as otherwise stated any claim on account of defective materials or for any other cause whatsoever will conclusively be deemed waived by Customer unless written notice thereof is given to Spirent within the Warranty Period Spirent reserves the right to change the warranty and service policy set forth above at any time after reasonable notice and without liability to Customer TO THE EXTENT PERMITTED BY APPLICABLE LAW ALL IMPLIED WARRANTIES INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY NONINFRINGEMENT AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY EXCLUDED AND THE LIABILITY OF SPIRENT IF ANY FOR DAMAGE RELATING TO ANY ALLEGEDLY DEFECTIVE PRODUCT SHALL BE LIMITED TO THE ACTUAL PRICE PAID BY THE CUSTOMER FOR SUCH PRODUCT THE PROVISIONS SET FORTH ABOVE STATE SPIRENT S ENTIRE RESPONSIBILITY AND CUSTOMER S SOLE AND EXCLUSIVE REMEDY WITH RESPECT TO ANY BREACH OF ANY WARRANTY Spirent Communications PN
103. nce you could create a simple file with values of a sine wave The example shown in Figure 6 1 and Figure 6 3 is a theoretical example of one that has 16 samples to create the sine wave A value is required on each row of the time domain file main body In Figure 6 3 the blue line plotted on the scale at the left hand side of the graph represents the data needed by the body of the file and the red scale plotted on the scale at the right hand side of the graph is the corresponding output in Volts Once started this plays the 16 amplitude levels and repeats to create a sine wave If no attenuation is set this gives a sine wave from the BNC channel output of the DLS 5800 with peak values of 5 Volts as shown on the right hand scale 6 4 2 Number of Samples In the File In practice for noise files with Gaussian amplitude distributions we recommend a minimum number of samples of 2 Meg before the output repeats As an example suppose we use a 32 MHz sampling rate and 2421 2097152 data samples This means that after the file reaches the end of its 2097152 samples it will start again and repeat the same set of data values The time taken to cycle once through all the samples is 2421 32 0E 6 0 065536 seconds This is a rate of 15 26 times per second The subsequent spectrum cannot contain frequencies lower than 15 26 Hz It can have frequencies at harmonics of 15 26 Hz all the way up to half the clock rate 6 4 3 Maximum Memory Size Ea
104. ne Modulation Profile A2 Spirent Communications PN 71 006581 Page 61 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Chapter6 Time Domain Noise Profiles Spirent Communications PN 71 006581 Page 62 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 6 1 Introduction The DLS 5800 is capable of reading and playing user generated time domain noise files This chapter provides information on the file format and an example to assist in describing this feature 6 2 Principles of Operation The system works by repeatedly playing back a number of data samples at a specific rate These samples are read out of RAM memory kept inside the DLS 5800 You must first put the data samples into memory and then generate the specified noise type The data samples are converted into voltages by a Digital to Analog Converter DAC inside the DLS 5800 at the rate specified by the sample rate specified within the header information of the file This is normally 12 5 32 or 100 Megasamples per second Msps The output changes every time a new sample is converted by the DAC The DAC is a 14 bit device which accepts numbers from 0 to 16383 Half scale 8191 5 corresponds to 0 V out of the DAC and out of the BNC connector at the back of the DLS 5800 In practice for noise files with Gaussian amplitude distributions we recommend a minimum of 2 Megasamples before the output repeats To create large file types you will need an ASCII text editor capable
105. ngle output injection unit The DLS 5409 does not require a control connection It has a fixed insertion loss which is automatically applied by the software Each noise injector model has its own set of electrical characteristics for example injector loss frequency response and bandwidth The DLS 5800 Control Software automatically configures itself accordingly based on the Injector Type that you select Spirent Communications PN 71 006581 Page 29 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Injector Configuration Injection System Type DLS 5410DC v Apply Select your injector type then click Apply To identify each DLS 5410DC use the appropriate Locate button above The Remote LED on the selected unit will turn red for 2 seconds NOTE The same injector type is assumed across all channels In other words you must use DLS 5410DCs for all channels OR DLS 5409s for all channels A mix of injector types is not supported V Display this dialog at startup Figure 3 1 Injector Configuration Dialog The Injector Configuration dialog allows you to select the type of Noise Injector s to be used You can select DLS 5410DC or DLS 5409 from the Type combo box Then click Apply If you chose DLS 5410DC the software will then attempt to connect to the injector units via USB If successful the Locate Unit buttons will become enabled and you can use these buttons to turn the Remote LED of the associated unit RED for a
106. not used in Single session mode Remote Port 3rd instance This is the port value to which you must connect in order to control the slave 2 session of the software This field is not used in Single session mode or if only 2 sessions are available Once you have finished setting the System Properties click OK to close the dialog NOTE The DISABLE REMOTE command will not work when using the multiple session remote mode 3 11 2 Display Remote Commands The DLS 5800 allows you to display the remote control commands sent to the noise generator Choose Help Remote Command 3 12 Licenses Spirent Communications uses a license checking scheme to protect its intellectual property from unauthorized copying Spirent supplies you with licenses for purchased software and noise file packages These licenses allow use of the covered product on your specific target platform To view installed licenses or add licenses 1 Select System License 2 The License Management dialog box appears License Management MAC Address 00 60 e0 43 fb 4c Display Licenses Add Licenses Figure 3 12 License Management Dialog Spirent Communications PN 71 006581 Page 47 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 3 Click the Display Licenses button to see a list of currently loaded licensed packages for this DLS 5800 The License Information window appears For each license installed the License Information window displays the produ
107. nt Communications DLS 5204 NoiseFiles Base Noise Files ADSL Cl_imp dat gt Slevel lt 100 mv gt impulse repeat number lt 15 gt Example Impulse noise only Sname lt C Program Files Spirent Communications DLS 5204 NoiseFiles Base Noise Files ADSL Cl_imp dat gt S level lt 50 mvV gt Simpulse rate lt 50 pps gt Simpulse repeat number lt 15 gt Spirent Communications PN 71 006581 Page 40 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide ot5 5410 Help 1 Ch 1 8 System Output PEIN SHINE REIN DSM Control 2 Ch 9 16 System Output PEIN SHINE REIN DSM Control Micro Interruptions Figure 3 9 DLS 5410 pull down for a 4 card DLS 5800 system Note When selecting Xtalk and RFI noise types Impulse and Time Domain noise must not be combined An error message will appear if you attempt to combine these different noise types 3 10 Controlling DLS 5410DC Features The DLS 5410DC adds differential and or common mode noise injection channel switching PEIN SHINE REIN and DSM capabilities to the DLS 5800 NOTE The DLS 5410DC provides accurately timed switching of signals generated by DLS 5800 It does NOT generate noise on its own To control these features select DLS 5410 and choose the injector which affects the channel you want to use For example to control channels 1 8 choose 1 Ch 1 8 System Output PEIN SHINE REIN DSM Control The DLS 5410 Control dialog appe
108. o any one of the following Spirent products e DLS 5410DC Differential Common mode noise injector combiner functionality e DLS 5409 Differential mode noise injector mainly used to inject noise into multi line simulators NOTE DLS 5410DC Noise injectors have to be connected to DLS 5800 as follows 1x DLS 5410DC Noise injector for DLS 5800 with 2 noise cards 8 channels 2x DLS 5410DC Noise injectors for DLS 5800 with 4 noise cards 16 channels 3x DLS 5410DC Noise injectors for DLS 5800 with 6 noise cards 24 channels NOTE Each DLS 5409 noise injector will be connected to a noise output of DLS 5800 NOTE Combinations of DLS 5410DC and DLS 5409 are not allowed For a DLS 5800 Spirent Communications PN 71 006581 Page 12 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide system all injectors must be of the same type 1 7 DLS 5800 DLS 5410 DLS 5409 Configurations DLS 5800 is available in 3 configurations having 2 4 and 6 noise cards These configurations require 1 2 and 3 DLS 5410 Noise Injectors or 8 16 and 24 DLS 5409 Noise Injectors respectively 1 7 1 Test Setup The building blocks of this test set up are e A test loop being either a real cable or a cable simulator e A noise generator DLS 5800 that generates a mixture of random noises e An adding element noise injector to inject the impairment noise into the test loop DLS 5410DC or DLS 5409 e The DLS 5800 creates noise profiles that must meet many nois
109. of handling large files Applications such as Microsoft Excel have a limitation of 65536 rows which does not allow the file to achieve a Gaussian crest factor higher than 5 If you use pre recorded files created by Spirent you will not need to make samples into files Select the appropriate file from the DLS 5800 Control Software and generate the specified noise type e You must create time domain noise files Save these files with a txt or prn extension e When you load such a file the DLS 5800 Control Software creates a new file having the same name but with an extension _td dat which represents the time domain file format which can be read by the DLS 5800 If your original file is large this step may take a long time These are some of the functions you can control e Number of samples in the file e Sample rate e External synchronization e Power output e Relative amplitude for each sample e Channel selection You have limited control over e Output scaling You cannot directly control e Type of triggering of the sample file Once started the triggering is continuous and the file continues until stopped e Alternating sample rates Spirent Communications PN 71 006581 Page 63 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide e Alternating between files during playback e File structure 6 3 Description of the Time Domain Profile File Format The file structure consists of a header and a main body The main bod
110. og ensure that the channel you wish to use is turned OFF check box is clear not checked Valid channels for PEIN are 1 5 9 13 17 and 21 1 Using the main GUI of the DLS 5800 Control Software load and generate the file White Noise Pein 90dBm Hz_xtk dat on one of the channels that corresponds to an injector channel that supports PEIN channels 1 5 9 13 17 or 21 Note that this file is designed for the WT 114 PEIN noise implementation and if a different file is used the output may not meet WT 114 specifications 2 On the DLS 5410 Control dialog click the PEIN radio button set the number of repetitions then click Start NOTE that a single repetition of the PEIN pattern will take around 35 minutes to complete 3 10 1 3 SHINE Single High Impulse Noise Event 1 On the DLS 5410 Control dialog ensure that the channel you wish to use is turned OFF check box is clear not checked Valid channels for SHINE are 1 5 9 13 17 and 21 1 Using the main GUI of the DLS 5800 Control Software define load and generate an appropriate noise sample on one of the channels that corresponds to an injector channel that supports SHINE channels 1 5 9 13 17 or 21 2 On the DLS 5410 Control dialog click the SHINE radio button set the duration of the signal then click Start 3 10 1 4 REIN Repetitive Electrical Impulse Noise 1 On the DLS 5410 Control dialog ensure that the channel you wish to use is turned OFF ch
111. on a previous command Error CMD_OVERFLOW Description A command has been sent after DLS 5800 remote control access has been disabled Spirent Communications PN 71 006581 Page 110 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide The first command sent after disabling is accepted and queued If a second command is then sent an overflow will occur The first command is not processed until remote control is re enabled OR The DLS 5800 received a command before it had finished processing a previous command Error PROCESS FAILURE Description Unspecified error Error FILE_ACCESS ERROR Description File does not exist Error UNABLE_TO_APPLY_XTALK_NOT_SELECTED Description The command received applies to XTALK noise files but the current profile is not XTALK Error VALUE_IS_OUT_OF_RANGE Description Value is out of valid range Error CHANNEL_NOT_SELECTED Description Output channel was not be selected Error SELECT_CHANNEL_NOT_EXIST Description A selection attempt was made on a channel does not exist Error LOAD_OUTPUT_ERROR Description Failure to load the hardware output channel Error INVALID_PACKAGE LICENSE Description Invalid License Error UNABLE_TO_APPLY_IMPULSE_NOT_SELECTED Description The command received applies to IMPULSE noise but the current profile is not IMPULSE Spirent Communications PN 71 006581 Page 111 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Error
112. on the power The key is supplied with the unit 2 5 Back Panel DLS 5800 Components and Connections The back panel see Figure 2 2 is used to connect a mouse keyboard and monitor as well as to connect to the noise injectors and test circuit for both communication optional remote control of test system components and noise generation purposes Spirent Communications PN 71 006581 Page 18 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide The DLS 5800 back panel components Figure 2 2 are as follows A mm Ratings Label Power Inlet okso O2 0 conse ooooo w 0000000000000 CELLIJ wovooooeeeee soos co L AWGN Channels _ ___ _ pc Interface Figure 2 2 Back Panel Connections e AC power input ON OFF switch e AWG noise cards x2 Base configuration maximum 6 cards possible e LPT Printer port e Four USB ports to connect to DLS 5410DC units license dongles etc e LAN connectors Ethernet ports which allow remote control of the DLS 5800 by another computer LAN port is not activated e COM 1 COM 2 COM3 connectors To remotely control wireline simulators e Monitor port Spirent Communications PN 71 006581 Page 19 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 2 6 Front Panel DLS 5410DC and Connections SPIRENT DLS 5 1000 Noise Injection Unit 3 senon S Ol SIDEA so o L SIDE 6 Mien L our eF o our WREUNE usa Figure
113. or of this combined noise may be lower than the crest factor of crosstalk noise Therefore always deactivate the ingress noise when checking ETSI compliance of the crosstalk noise These figures show how the cumulative distribution function may be different between an ETSI and non ETSI compliant noise sources To be ETSI compliant the cumulative distribution function must fit completely between the two limits of the mask Note that the greater the number of samples more likely the calculation will be able to successfully resolve the crest factor requirement Spirent Communications PN 71 006581 Page 35 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 10 Hi 10 g T pee 10 2 gio ed 3 10 gt 10 gt 10 10 10 4 S103 10 a Z B106 610 ka a ante 1077 10 0 7 z Figure 3 6 CAD of non ETSI Figure 3 5 CAD of an ETSl compliant compliant sample sample 3 7 3 2 Sample Number Choose the number of points in the calculated noise sample The more samples the more accurate the noise sample however the time to calculate the sample will increase 3 7 3 3 Target Channel Select the generator channel for noise output Your DLS 5800 can have 2 4 or 6 AWG modules providing 8 16 or 24 channels 3 7 3 4 Calculate Click the Calculate button to recalculate the noise sample from the noise profiles and settings in the combiner window NOTE for DLS 5410DC users the calculation is affected by the coupling
114. or simulated wireline near the receiver of xDSL modem under test The DLS 5800 automatically takes the loss of the noise injector into account In older xDSL standards for example ISDN amp HDSL PSDs were few and relatively generic This was done to simplify testing and had the consequence of not being very representative of real access network conditions Today with the advent of automated test set ups and higher precision test equipment xDSL Standard s organizations now define noise PSDs that include changing test loop length and type as well as changing bitrate or transmission direction for the xDSL modem under test The result is a more realistic set of noise shapes as a set that sometimes numbers in the thousands of shapes Therefore to simplify xDSL testing noise profiles are stored in separated files so the DLS 5800 can load a dedicated or specific noise profile for each required test Spirent Communications has developed noise libraries for most xDSL test requirements As an example of noise PSD development the following section describes the way ETSI defines noise profiles provides some sample noise profiles for SDSL and provides the associated DLS 5800 file format of these noise profiles 4 2 Defining Noise Profiles Using Building Blocks The profile of the crosstalk noise defined in current ETSI xDSL standards varies with the length of the test loop The rationale behind this is that the FEXT coupling function between t
115. ore details 2 13 Controlling DLS 5800 5410DC 5409 The DLS 5800 5410DC 5409 is controlled using the factory installed DLS 5800 Control Software The DLS 5800 Control Software is pre loaded on the DLS 5800 and allows you to select customize load and generate noises onto real wire or simulated loops This software also provides control of DLS 5410 and support for the DLS 5409 and provides remote access to the system hardware Thanks to this remote access functionality of the DLS 5800 Control Software you can also write your own control applications for use with the DLS 5800 DLS 5410DC and DLS 5409 If you are developing custom control software Remote Control discusses the accepted commands to configure the DLS 5800 5410DC 5409 Note Spirent Communications warrants the DLS 5800 and associated software Spirent Communications however does not warrant non Spirent application software that may be run on DLS 5800 units Applications installed on the DLS 5800 units without prior approval from Spirent Communications void all warranties associated with this product 2 13 1 Local Area Network Connections To make LAN connections e Connect the Ethernet cable to the LAN1 port when connecting the computer to a local area network Please note that port LAN2 of DLS 5800 is disabled e Set the IP address according to the instructions in the sections beginning on page 28 This enables the DLS 5800 unit to be controlled remotely via the LAN
116. pair any required firm ware and or software upgrades are installed free of charge and if required as part of the repair the unit receives a complete calibration Spirent Communications also provides return shipment of any unit covered under warranty at Spirent Communications cost The Extended Warranty provides e Extension of the original one year limited warranty by two years thus a total warranty coverage of three years e Required firmware and software upgrades installed free at time of repair e Free calibration due to repair during the coverage period e Prepaid return shipment of repaired products worldwide Spirent Communications Extended Warranty can be purchased at any time up until the expiration of the original one year manufacturer s warranty 1 4 2 Three Year Calibration Agreement Spirent Communications three year calibration agreement gives the opportunity to invest in a yearly calibration for three years at a significant cost saving ensuring optimum product performance Timely calibrations are critical to ensuring the best accuracy from your Spirent equipment A report containing all calibration data is shipped with the product The Spirent Communications three year calibration agreement provides e Notification from Spirent Communications when calibration is due e Calibration data report e Prepaid return shipment of calibrated unit worldwide Please contact Spirent Communications Customer Service for mor
117. paramstate if ret set bActive 0 Close 7 4 1 REIN Sample This code fragment illustrates configuring and starting REIN on all available channels on a 6 card DLS 5800 then waiting until the system indicates that all the REIN tests are finished FREE Spirent Communications PN 71 006581 Page 97 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide MAIN Scipt AAAHHH ARAARA PETE EET ETE EEE EET EEE EE DLS 5800 set ip 10 20 2 44 local set ip 127 0 0 1 EET EERE TERETE TEETER EE TE EEE TEE TEE TEE H HHEH set port 2001 fire up the box Open ip port set cmd SET M_INJ_CHAN set state STATE set mode MODE set cmdclose channel list for a 6 card system set channellist list 2 6 10 14 18 22 set m_inj M_INJ_ set _duration REIN DURATION set _frequency _REIN_ FREQUENCY set _repetitions REIN REPETITIONS set _start REIN START set _stop _REIN_STOP set __getparamstate REIN_STATE foreach chn channellist set chan CHAN append chan chn puts Testing REIN synchronization GET command on chan write_socket STX SET m_inj chan _duration VAL 20000 ETX read_socket write_socket STX SET m_inj chan _frequency VAL 1 ETX read_socket write_socket STX SET m_inj chan _repetitions VAL 100 ETX read_socket Spirent Communications PN 71 006581 Page 98 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide write_socket STX SET m_inj chan _start ETX read_so
118. pirent further warrants to Customer that hardware which it supplies and the tangible media on which it supplies software will be free from significant defects in materials and workmanship for a period of twelve 12 months except as otherwise noted from the date of delivery the Hardware Warranty Period under normal use and conditions To the extent the Product is or contains software Software Spirent also warrants that if properly used by Customer in accordance with the Software License Agreement the Software which it supplies will operate in material conformity with the specifications supplied by Spirent for such Software for a period of ninety 90 days from the date of delivery the Software Warranty Period The Product Warranty Period shall mean the Hardware Warranty Period or the Software Warranty Period as applicable Spirent does not warrant that the functions contained in the Software will meet a specific requirement or that the operation will be uninterrupted or error free Spirent shall have no warranty obligations whatsoever with respect to any Software which has been modified in any manner by Customer or any third party Defective Products and Software under warranty shall be at Spirent s discretion repaired or replaced or a credit issued to Customer s account for an amount equal to the price paid for such Product provided that a such Product is returned to Spirent after first obtaining a return authorizatio
119. ple STX SET M_NOISE_DISTURBER VAL 0 10 ETX STX SET M_NOISE_DISTURBER VAL ETSI A_xtk enc 10 ETX Command M_SAVE_DSM_FRAME_ FILE Description Saves a calculated sample as a DSM frame file Parameter The file name of the noise The file name must end with _dsm enc Telnet example ISTX SET M_SAVE_DSM_FRAME_ FILE VAL frame1_dsm enc ETX Note that DSM frames must always be stored in the C Program Files Spirent Communications DLS 5800 DSM Frames subfolder but the software sets this path automatically so you don t need to specify it when saving DSM frames 7 3 3 DLS 5410DC Injector Remote Commands The commands listed in this section are relayed by the DLS 5800 to the DLS 5410DC noise injector 7 3 3 1 Channel Control Command M_INJ_CHAN lt n gt _STATE Function Set Side A Channel lt n gt ON OFF Parameter lt n gt 1 to 8 for 2 card system 1 to 16 for 4 card system 1 to 24 for 6 card system Parameter 0 OFF 1 ON Telnet example STX SET M_INJ_CHAN1_STATE VAL 1 ETX If the value is not in range the return will be VALUE IS OUT RANGE Command M_INJ_CHAN lt n gt _MODE Function Set Side A Channel 1 coupling mode to Differential or Common Parameter lt n gt 1 to 8 for 2 card system 1 to 16 for 4 card system Spirent Communications PN 71 006581 Page 78 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 1 to 24 for 6 card system Parameter 0 Differential 1 Common Telnet example
120. profiles can be stored in separate files so that for each test the DLS 5800 can select and load a dedicated ingress noise profile from a library with ingress profiles You define noise profiles as explained in the following sections 5 2 Definition of the RFI Tones in Ingress Noise The ingress noise generated by the DLS 5800 software is a superimposition of a number of random modulated carriers AM The total voltage U t of this noise is defined as U t Ly Ux x cos 2m fxt Py x 14 mxox 0 The individual components of the ingress noise voltage U t are defined as follows Ux The voltage U of each individual carrier is specified as a parameter in the ingress noise profile by means of a power level P dBm into a resistive load of R Note that spectrum analyzers will detect levels that are slightly higher then the values of the individual carriers when their resolution bandwidth is set to 10 kHz or more since they will detect the modulation power as well fk The frequency fk of each individual carrier is specified as a parameter in the ingress noise profile Px The phase offset 9 of each individual carrier is a random value that is uncorrelated with the phase offset of each other carrier in the ingress noise signal m The modulation depth m of each individually modulated carrier is specified as a parameter in the ingress noise profile This value is a RMS modulation depth the modulation index equals the peak levels of the modu
121. r Supply into the power inlet on the rear panel of DLS 5410DC 4 Connect the power input on the DLS 5P02 front panel to the AC line Use the power cord provided in the accessories package The units will be powered up only e After all interconnections between units are done e After all additional devices such as keyboard mouse monitor etc are connected e After making sure that all safety requirements are met Please see Appendix C Safety Information and Instructions for more details To power up DLS 5800 turn on the ON OFF switch on the back panel of DLS 5800 then momentarily press the power switch on the front panel of DLS 5800 The Power LED located on the front panel of DLS 5800 will light when the unit is powered on To power up DLS 5410DC turn on the ON OFF switch on the front panel of DLS 5P02 The Power LED located on the front panel of DLS 5410DC will light when the unit is powered on Spirent Communications PN 71 006581 Page 23 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Note To power DLS 5410 use only the DLS 5P02 Power Supply which is provided in the accessories package of DLS 5410DC Do not use any other power supply Note Always ground the external insertion circuit to the same ground circuit power bar as the DLS 5800 Note Ensure that the equipment has enough clearance at the front and at the rear minimum 4 inches or 100 mm to allow proper air ventilation Please see Chapter 10 for m
122. rating Temperature Storage Temperature Relative Humidity 8 4 Electrical Specifications Item Rated Input Voltage Rated Power Consumption Line fuses DLS 5800 DLS 5410DC DLS 5409 User Guide DLS 5800 4U Rack mounted unit DLS 5410DC 1U Rack DLS 5800 483 x 545 x 177 mm 19 x 21 5 x 7 inch DLS 5410DC 483 x 483 x 45 mm 19 x 19 x 1 8 inch DLS 5800 19kg 42 Ibs DLS 5410DC 4 8 kg 10 6 Ibs 10 C to 40 C 50 F to 104 F 4 F to 158 F 20 C to 70 C 10 to 95 RH non condensing Description DLS 5410DC Switchable 115 230 VAC 50 60Hz DLS 5800 Autoranging 100 240VAC 10 50 60 Hz DLS 5800 650VA max DLS 5410DC 1 5 0 75 A max 115 230 VAC DLS 5800 no user replaceable fuses DLS 5410DC 115 VAC T1 5A Glass Tube Type qty 2 or 230 VAC T0 75A Glass Tube Type qty 2 Where T denotes time lag type of fuses Note All DLS 5800 units come with an auto switching power supply DLS 5410DC may require user intervention when powering up the unit Please verify voltage settings of the external power supply of DLS 5410DC prior to powering on the unit 8 5 DLS 5800Technology The DLS 5800 is a PC based Arbitrary Waveform Generator with 8 16 or 24 independent channels Each generator channel uses a 14 bit DAC for excellent dynamic range Designed for the testing of xDSL modems and DSLAMs the DLS 5800 generates impairments such as Crosstalk Noise White Noise RFI tones and Impulse noise t
123. s a custom file To save a custom noise file 1 Define your profiles then calculate the noise sample 2 Select File Save Custom 3 Enter the desired descriptive text when the following prompt appears Input your Noise Information 4 Click OK 5 When the Save As dialog appears choose the file name and location The file is saved with an extension _cst enc which identifies it as a custom noise file Note Because cst files are time domain data the DLS 5800 Control Software does not graphically display custom generated files 3 9 Combining Several Noise Files with NCD Files A NCD file is a text file which allows you to combine noise files for later recall An ncd file can be used to combine several noise files each with a specified power level The ncd files can be used to recall a specific combination of up to six _xtk files and one _RFI file and are loaded just like regular noise files The same rules that apply to combining noises in the work space also apply to NCD files Up to 7 Crosstalk XTK and Radio Frequency Interference RFI files can be combined Only 1 Time Domain TD file Impulse IMP or Custom Saved File CST can be loaded at any time NOTE user may combine TD and Impulse noise types together if the sample rate of each file is identical To create an ncd file use a text editor such as Notepad and type out a combining specification then save it with an ncd extension Four file for
124. ses such as REIN SHINE PEIN etc The DLS 5409 Passive Noise Injector injects the signal directly in differential mode e A Noise Profile is a description of the characteristics of the noise such as the power spectral density PSD of crosstalk noise or the radio frequency interference RFI tones of ingress noise e A Noise Sample is a sequence of numbers representing the noise profile in the time domain Noise samples exist in the internal memory of the software and are not made available as a separate entity The software implements the following features Importing a Crosstalk Noise Profile from a file that specifies the PSD of crosstalk noise in a human readable ASCII table format Importing an Ingress Noise Profile from a file that specifies the RFI tones of ingress noise in a human readable ASCII table format Spirent Communications PN 71 006581 Page 27 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Importing a Time Domain Profile from a file that specifies amplitude levels vs time Choosing the settings of the noise generator These correspond to fundamental parameters of the Noise Sample such as the length of the Noise Sample Various amplification settings to control and fine tune the level of the total output noise Calculating a noise sample from an active noise profile Downloading the synthesized noise sample to the DLS 5800 and activating its output Displaying a graphic representa
125. sessrserrsressersessterstestssrreseesseereesee 118 S4 Fl ctrical Specifications era ee cea a iei aineena ieies Jee eed date Sate uganda set 119 8 5 DLS 5800Technology s ssucsssresensascesecdsssircevasuasessasvaviecasperensa EE EAEE EEE EAEE EET 119 8 6 Spirent Communications Options 3 5 acccasyceesindeceedseasandenndeeeansnsisiuenndadeanunnavederpdadeadonandddenpiatenessanaeter 121 Chapter9 Appendix A Measuring Injection LOSS 0 ccecceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeteeeeneaaees 122 Chapter 10 Appendix B Safety Information and INStruCtiONnS eeeeeeeeeeeeeeeeeees 122 10 1 Safety MAORI ALOR io cp delee scp teeasucecctendetenicasisa soca aiee deca nite anced ae ies isar kas ven cutetcaaAntedicecan 124 10 1 1 Protective Grounding Cs AN cies cocci enesteiusgrecetesiaieedsa areal dace be tugaadievadeevexteecdeuteeee 124 10 1 2 Before Operating the TAN 2 cccnesadeanastesuteiasanceaedareaqsasaaeuersae enataaieanbeaueeeatesasdansras toned anaes 124 104 3 Power Supply REQUITSMGHIS lt ciciscc ccdsvunsasusleusindecbadtesvendnsasteuadenvsaderaiesieastnusacusssdensaresupadasnets 124 10 1 4 Main Fuse Type sasedisnces ssc sacoeedeidicdeaici rensie a Ea S aE Ee aei ien 124 10 1 5 Connections to a Power Supply sssssesssessssseesssessenssessssessseesstesssesseessseeessresseesseessereeseee 124 101 6 Operating ENVITONMEN G sses iener EEEE E EEE e tae 124 10 1 7 Class of Equipment i s ceciren Ea aA A EEE EEEE EIEN EER 125 10 2 S
126. sting SDSL at the same bit rate of the SDSL modem under test If Self noise behavior conforms the nominal PSD values specified in the standard it can be calculated in advance if not it has to be measured from the xDSL modem under test e Full noise is the combined equivalent disturbance from both Alien and Self disturbers This is a noise type that is composed of the outputs of generators G1 and G2 in Figure 4 1 Combining Alien and Self noise into Full noise is not a linear power sum of all individual disturbers since only one disturber can occupy the worst case wire pair from a crosstalk coupling point of view Therefore a weighted power sum is specified in recent ETSI Spirent Communications PN 71 006581 Page 52 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide xDSL standards When Self noise has to be evaluated by measuring the PSD of the modem under test then a noise profile library cannot provide the Full noise in advance It must be restricted to Alien noise only and the you must convert it into Full noise before performance testing can start 4 4 Description of the Noise Profile File Format The ASCII format to describe a noise profile is very simple It consists of a number of lines each containing two numbers separated by spaces or tabs In this way two columns are formed The first column describes a number of frequency values in Hz the second column contains the corresponding value for the power spectr
127. t 4K Q Common mode 150 5 DLS 5410DC Less than 150 dBm Hz in differential and common mode injection 4 kHz to 30 MHz for differential mode 150 kHz to 30 MHz for common mode 100 dB one single sine wave Greater than 60 dB from peak to lowest power in the impairment profile within the dynamic range of the instrument for any impairment with crest factor of 5 Less than 0 5 dB mean absolute error MAE for all profiles The DLS 5800 is calibrated to be within 0 5 dB PN 71 006581 Page 120 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide mean error ME for all profiles as measured using an HP 4395A Analyzer DLS 5410DC Injector Loss Differential mode 15 3dB 25dB Common mode 4 8dB 25dB DC ratings between Tip Ring Tip Ground 400VDC Ring Ground Attenuation Input Output 22 dB 0 6 dB between 400 kHz and 30 MHz 22 dB 0 1 dB between 150 kHz and 400 kHz 22 dB 0 1 5 dB at 100 kHz 22 dB 0 3 5 dB at 50 kHz Loading of the line lt 0 108 dB from 100 kHz to 15 MHz lt 0 14 from 15 MHz to 30 MHz Maximum input power 10 dBm with crest factor 5 Size 3x 1 4 x 1 2 inch Weight less than 100 grams 8 6 Spirent Communications Options EEE 488 ACC GPPCINT e DLS 5Bxx Noise Impairment Libraries e DLS 5C80 Custom Impulse Noise Creation Tool e DLS 5C60 xDSL xtalk creation tool and performance prediction tool Spirent Communications PN 71 006581 Page 121 of 128 DLS 5800 DLS 541
128. t the reference level to 10 dBm for both files write_socket STX SET M_NOISE_GAINEX VAL 0 10 ETX read_socket write_socket STX SET M_ NOISE _GAINEX VAL 1 10 ETX read_socket Spirent Communications PN 71 006581 Page 90 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide enable crest factor gt 5 checking STX SET M_CREST_FACTOR VAL ON ETX generate the sample from the loaded files write_socket STX SET M_GENERATE_SAMPLE ETX read_socket load the output and start signal generation write_socket STX SET M_LOAD_OUTPUT ETX read_socket 7 4 2 Noise Burst single burst script Note Replace lt filename gt and lt noise level gt with appropriate values Also the script assumes channel 1 if not using DLS 5410DC comment the next 2 lines which turn on Channel 1 of the DLS 5410DC write_socket STX SET M_INJ_CHAN1_STATE VAL 1 ETX read_socket if using DLS 5410DC change 0 to 1 if you want common mode if not using DLS 5410DC comment the next 2 lines which set Channel 1 into differential mode write_socket STX SET M_INJ_CHAN1_MODE VAL 0 ETX read_socket select channel 1 write_socket STX SET M_SELECT_OUTPUT VAL OUTPUT_1 ETX read_socket reset the current channel write_socket STX SET M_ RESET CHANNEL ETX read_socket Spirent Communications PN 71 006581 Page 91 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide load a noise file
129. ted 7 5 1 Required Global Variables for TCL samples TCL code Start Global Variables Spirent Communications PN 71 006581 Page 103 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Socket descriptor nn set _sock_desc Server Response Must be global for vwait nn set line time out set _timeout 60000 for debugging set _verbose on End Global Variables 7 5 2 Communications Functions 7 5 2 1 write_socket TCL code Procedure write_socket Purpose Sends command to the 5204 Exits if a connection is not established proc write_socket command global _sock_desc _verbose set snd Sending if eof _sock_desc puts Error A connection has not been established if _verbose on puts snd command Spirent Communications PN 71 006581 Page 104 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide puts _sock_desc command 7 5 2 2 read_socket TCL code Procedure read_socket Purpose Reads response from 5800 Sets line to reponse if successful otherwise sets line to Timeout if a timeout occured while waiting for a response Returns a parsed 5800 response or timed out on failure proc read_socket global sock descriptor and line global _sock_desc line _verbose _timeout set the timer set time_id after _timeout set line 1 when socket becomes readable set line
130. terrupts Telnet example STX SET M_INJ1_INTERRUPT_TOTAL VAL 10 ETX Command M_INJ lt n gt _INTERRUPT_TRIGGER_SINGLE Function Trigger Single Micro Interrupt Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Parameter none Telnet example STX SET M_INJ1_INTERRUPT_TRIGGER_SINGLE ETX Spirent Communications PN 71 006581 Page 83 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Command M_INJ lt n gt _INTERRUPT_TRIGGER_START Function Start automatically generated micro interrupt triggering Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Parameter none Telnet example STX SET M_INJ1_INTERRUPT_TRIGGER_START ETX Command M_INJ lt n gt _INTERRUPT_TRIGGER_STOP Function Stop automatically generated micro interrupt triggering Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Parameter none Telnet example STX SET M_INJ1_INTERRUPT_TRIGGER_STOP ETX Command M_INJ lt n gt _MI_STATE Function Return status of micro interrupt test ACTIVE or INACTIVE Parameter lt n gt Injector ordinal index based on serial number from 1 to 3 depending on number of injectors present Telnet example STX GET M_INJ1_MI_STATE ETX Spirent Communications PN 71 006581 Page 84 of 128 DLS 5800 DLS
131. testkxt wn Ombhz_xtk dat 33 dBm talk freque c testhxt wn Smhz_xtk dat 33 dBm talk freque c test xt wn2O0mbhz_xtk dat 33 dBm lt gt Combined Noise 6 Noise Calculation 2 View Signal ajal zl I Crest Factor gt 5 40 Sample Number 431072 X ae Target Channel Channel 1 v BBO a en en ences KOTT yore E i SPE E D Gees Bece OS Ce eee eee eee eee See eee eee ere 200 H i 0 7500 15000 22500 30000 Frequency kHz Noise Output Sampling Rate 100 MHz Xtalk Crest Factor Passed Generate Noise Figure 3 2 Main GUI Window DLS 5800 DLS 5410DC DLS 5409 User Guide 5 File browsing tree 3 7 1 Work Space Region The Work Space region allows you to combine various noise profiles available The table shown within the Work Space is referred to as the combiner window This term is used extensively throughout this chapter Up to 7 Crosstalk XTK and Radio Frequency Interference RFI files can be combined Only 1 Time Domain TD file Impulse IMP or Custom Saved File CST can be loaded at any time NOTE user may combine TD and Impulse noise types together if the sample rate of each file is identical The combined profiles can be generated onto a single channel output The combiner window displays the noise file properties described in Table 3 1 Table 3 1 Combiner Window Table Description Notes Column Description Noise Type Identifies the file type as a frequency OR time domain f
132. tion of the requested spectrum and the one that will be generated in case the output signal is amplified to compensate for the attenuation in the noise injection network Display of the key properties power crest factor and so on of the synthesized noise sample A graphic representation of the characteristics of the generated noise both in the time domain and in the frequency domain This includes the spectral density and the distribution function of the noise Aremote only feature which allows starting noise on multiple channels with minimal delay between See section 7 3 6 Synchronized Start for details A remote only feature which allows generation of precision timing noise bursts See section 7 3 4 Noise Burst Commands for details NOTE A 2 card DLS 5800 uses 1 DLS 5410DC Noise Injector or 8 DLS 5409 Passive Noise Injectors A 4 card DLS 5800 uses 2 DLS 5410DC Noise Injectors or 16 DLS 5409 Passive Noise Injectors A 6 card DLS 5800 uses 3 DLS 5410DC Noise Injectors or 24 DLS 5409 Passive Noise Injectors NOTE that depending on your configuration some GUI features may look different from what is shown here in the manual 3 3 Installing the Software The DLS 5800 Control Software is factory installed If it becomes necessary to re install the software 5 Insert a software installation CD DVD in the computer CD DVD drive 6 The Installation Wizard starts If it does not start launch Setup exe from the CD or
133. ts until the current connection is ended If remote control access is disabled either at the DLS 5800 unit or by a command from the remote controller while the connection is established the listener ignores connection requests following the termination of the connection but it does not close the connection Re enabling of remote control access must always be done at the DLS 5800 unit itself NOTE The DLS 5800 Control Software runs on Windows XP platforms which typically employ Intel x86 processors These processors use little endian formatting for data The remote control software inside the DLS 5800 does not perform host to network byte order translation of the data it sends so generally the remote controller must accommodate for this in both sending and receiving if its host processor uses big endian data However since the message contents as seen consist of byte sized ASCII character sequences non zero terminated strings this is not a concern in the present case their sequence should remain the same regardless With the above in mind this chapter defines the messaging required to effect remote control operation of the DLS 5800 Spirent Communications PN 71 006581 Page 70 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 7 2 Inter Process Communications 7 2 1 DLS 5800 Messaging Format DLS 5800 messages are formatted as follows STX lt message body gt ETX where the message body is described below STX is the
134. ts which may be useful These fragments include the functions which are called from the scripts 7 4 1 Simple Load and Output sequence if not using DLS 5410DC comment the next 2 lines which turn on Channel 1 of the DLS 5410DC write_socket STX SET M_INJ_CHAN1_STATE VAL 1 ETX read_socket if using DLS 5410DC change 0 to 1 if you want common mode if not using DLS 5410DC comment the next 2 lines which set Channel 1 into differential mode write_socket STX SET M_INJ_CHAN1_MODE VAL 0 ETX read_socket Spirent Communications PN 71 006581 Page 89 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide select channel 1 write_socket STX SET M_SELECT_OUTPUT VAL OUTPUT_1 ETX read_socket reset the channel write_socket STX SET M_RESET_CHANNEL ETX read_socket load a file Remember to replace lt filename1 gt with the desired full path name and extension do not add quotes around the file name write_socket STX SET M_LOAD_FILE VAL lt filename1 gt ETX read_socket load a file Remember to replace lt filename2 gt with the desired full path name and extension do not add quotes around the file name write_socket STX SET M_LOAD_ FILE VAL lt filename2 gt ETX read_socket set the number of samples write_socket STX SET M_NUMBER_SAMPLES VAL 131072 ETX read_socket set the noise gain write_socket STX SET M_NOISE_GAIN VAL 0 0 ETX read_socket se
135. twear are used or when it is necessary to move in between ESD protected workstations when handling ESDS equipment Note The equipment needed for proper grounding is available in ESD service kits such as the ESD Field Service Kit available from Spirent Communications P N 170 1800 Additional information on ESD can be found on the following website http www esda org aboutesd html Spirent Communications PN 71 006581 Page 128 of 128
136. uide 3 7 1 Worle Space Region aa ceceushepesocee trade cdec tend aaredovubenecn dn Wee eetedeediaatedee sendien riskinde haao s isaer E seisen 32 3 7 2 Combined N ise IR SOU eyte en iaa a a a Ra aa aa 34 Sete N is Calculation RESON saes ibadetpp eotaeaasoanee ance 35 37 4 Noise UUM asa asst ats cape saccade cae nda ea ee EE aaa E E Ea TE EEK 36 3 1 3 Channel Specie Meum so 5 cast eet ceca ted cece daetrreis Metered atts riera ek cece et des Jen cece 36 3 9 C stom Noise PICS crs ccce cates n aides erential ea ede tales eee tee ace EAS 39 39 Combining Several Noise Files with NCD Files ssczccasecesessnsnesscasdcessqeeanceascsucesmsaneuednegivacadieavacsdoueeseds 39 3 10 Controlling DLS 5410DC Pe aie issoria isisi ie ie aiie a 41 3 10 11 DLS 5410DC Channels sssiirsisisiisreisieeiiisesgiisiasisiisniniis ansians ireas esnaera isens 42 3 11 Remote Controls ssossiseresnn a ania Otten a E a E a 46 Subd System Propertie Soesi aa E E N E AE 46 3 11 2 Display Remote Commands sseseseeseseeseseesessersesressetsrrsrtssersttsreesttsttstrestesttsrtestesrseresressesee 47 3 12 NAC CSC Sz E E AE E EEEE 47 Chapter 4 Crosstalk Noise Profiles scecscccsecic ac ctetecencietanenaiatinadcleuemehaianextaptiunabeneaialiterentietenanss 49 AL Introduce a a E E E A ESE E AEE 50 4 2 Defining Noise Profiles Using Building Blocks sseessesseeseesessrsesessesstseresressessresrensersrerressreseeeeeesre 50 4 3 Definitions of Alien Self and Full Noise 0
137. urn to Local only from the Main session GUI 3 11 1 System Properties The System Properties dialog configures several settings mainly dealing with Remote Control mode System Identifier This is a string of up to 30 characters that you can use to identify the DLS 5800 There are remote commands that can be used to retrieve this string Remote to Local Password This is a password to prevent inadvertently exiting Remote mode Retype Password This field must match the Remote to Local Password This helps prevent typing errors when setting the password NOTE If you forget your password edit the DLS5204Value dat file and remove the RemotePassword xxxxxxx line Spirent Communications PN 71 006581 Page 46 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Start DLS 5800 when unit boots up When checked whenever the system is switched on the DLS 5800 Control Software will start automatically The default startup mode is If the system is configured to start DLS 5800 on startup these buttons let you choose whether the software will start in local or remote mode Remote Mode The DLS 5800 can run in either single or multiple session remote control mode Remote Port This is the port value to which you must connect in order to control the main session of the software Remote Port 2 instance This is the port value to which you must connect in order to control the slave 1 session of the software This field is
138. ursts to be generated at the programmed interval after the programmed delay Telnet example STX SET M_NOISEBURST_STARTTEST ETX Command M_NOISEBURST_STOPTEST Description Stops the Noise Burst test This is useful for stopping the test if you have accidentally programmed an extremely long time span Telnet example STX SET M_NOISEBURST_STOPTEST ETX Notes The timer used for bursts is not synchronized with the generation of impulses from the noise generator e Bursts can be used only on one channel at a time If attempting to generate bursts on multiple channels unpredictable results will occur e Although the duration command will accept steps of 1 ms the measured results actually showed increments of 10 ms The value is rounded to the next largest multiple In other words entering 10 ms will give 10 ms duration entering 11 ms will give 20 ms duration e The interval between bursts refers to how often the burst is triggered and does not account for the duration of the burst You need to ensure that the interval is greater than the burst duration Spirent Communications PN 71 006581 Page 87 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 7 3 6 Synchronized Start The Synchronized Start feature allows you to start multiple channels on a single noise card with minimal delay between channels The feature is available from the remote interface only it is not available from the GUI The feature uses a new command
139. utput Commands Command M_SELECTED_OUTPUT Description Queries which output is currently selected and to which subsequent commands will apply Telnet example STX GET M_SELECTED_OUTPUT ETX Command M_FILE_ NAMES Spirent Communications PN 71 006581 Page 73 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Description Get channel file name s Parameter A string that may contain more than one name if number of noises combined Format 1 namel 2 name2 Telnet example STX GET M_FILE_NAMES VAL OUTPUT_1 ETX Command M_OUTPUT_LEVEL Description Get channel output level Parameter A string that contains noise file name and level at 100 Q calibration impedance For example 1 ETSI A_xtk dat level 49 9 dBm 2 DSL_Next_24D_xtk dat level 43 dBm at 100 Q calibration impedance Telnet example STX GET M_OUTPUT_LEVEL VAL OUTPUT_1 ETX Command M_SELECT_OUTPUT Description Selects the current channel output to operate on Selects the output to which subsequent commands will apply Valid selector strings OUTPUT 1 through OUTPUT_24 Telnet example STX SET M_SELECT_OUTPUT VAL OUTPUT_3 ETX Command M_LOAD_FILE Description Loads a noise file Parameter The absolute path and file name Telnet examples STX SET M_LOAD_ FILE VAL C Program Files Spirent Communications DLS 5800 NoiseFiles Broadband forum ADSL_TR 048 Apr 2002 8 1 2_24 HDSL_Impairment Downstream_At_ATU R HDSL_Next_2
140. would be saved as _ rfi dat extensions These Relevant spectra REW 1 00 kHz eee eee ee eee ee Figure 4 2 Sample PSD Calculated Profile files can be saved in any directory specified and can be recalled using the DLS 5800 software Spirent Communications PN 71 006581 Page 54 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide Chapter 5 Ingress Noise Profiles Optional Spirent Communications PN 71 006581 Page 55 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 5 1 Introduction An ingress noise profile is an RFI tone description of the ingress noise as observed at the receiver of the xDSL modem under test near the point of injection The Spirent RFI technology available with DLS 5B36 synthesizes this ingress noise according to the associated profile The profile is used as follows e In order to use Ingress RFI noise you must have the DLS 5B36 license the older DLS 5B 14 is no longer supported The section DLS 5836 RFI Modulation Method below describes the modulation method e DLS 5800 reads a file containing a noise profile that describes what kind of noise has to be generated this is in ASCII frequency vs power e DLS 5800 synthesizes and generates the noise PSD and applies it via a noise injection mechanism onto the wireline or simulated wireline near the receiver of xDSL modem under test Different xDSL standards use different RFlI tone descriptions To simplify xDSL testing ingress noise
141. y of the file must be a number of lines that corresponds to successive data samples One line corresponds to one data sample The lines are numeric Prepare this portion of the file in ASCII format The header information and relative amplitude file format requirements is provided below Figure 6 3details the corresponding graph to the ASCII data shown in Figure 6 and Figure 6 2 name lt filename_td dat gt ver lt 1 0 gt freq lt 32 000E6 Hz gt level lt 30 0 dB gt compensation lt None gt Header information details power value lt 45 00 dBm gt res lt 16bit gt data lt begin gt Figure 6 1 Header 8192 11326 13984 15759 16383 15759 13984 11326 8192 5057 2399 624 0 624 2399 5057 Relative amplitude for each sample Figure 6 2 Data samples Spirent Communications PN 71 006581 Page 64 of 128 DLS 5800 DLS 5410DC DLS 5409 User Guide 16000 14000 12000 10000 8000 6000 4000 2000 Figure 6 3 Output waveform 6 4 Header Information Details name lt filename_td dat gt Enter a descriptive name in the filename field The _td dat extension is required ver lt 1 0 gt is the version number of the file created and can be changed freq lt 32 000E6 Hz gt is the sampling rate used by the 5800 to generate the time domain profile The sampling frequency options are 32 000E6 Hz 12 500E6 Hz or 100 000E6 Hz level lt 30 0 dB gt The RMS value of the samples is required to c

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