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G:SHDSL LTU-NTU_Repeater_V1-66

1. G SHDSL LTU NTU_Repeater_V1 66 6 3 Alarm Relays LTU 6 3 1 Implementation The two alarm relays Major and Minor are located on the relay card and are wired OR on the backplane to the open collector alarm outputs of the LTUs Under normal LTU power conditions the two output stages of each LTU are controlled by its microcontroller But even in case of a power failure on an LTU both the Major and Minor alarms will be activated on the relay card The backplane generates an auxiliary 5 Vpc that is used to pull up the open collector alarm outputs stages of the LTUs 6 3 2 Relay Alarm Conditions Major alarm e Atleast one of the LTU LEDs displays a red alarm e Power failure of any one of the LTUs e Power failure of the auxiliary 5 Vpc auxiliary supply on the backplane e Power failure of both the 48 Vpc supplies Minor alarm e At least one of the LTU LEDs displays an amber alarm and none of the LTU LEDs displays a red alarm e Power failure of any one of the LTUs e Power failure of the auxiliary 5 Vpc auxiliary supply on the backplane e Power failure of one of the 48 Vpc supplies 6 4 Alarm Relays NTU and Repeater 6 4 1 Implementation The two alarm relays Major and Minor are located on the NTU board itself 6 4 2 Relay Alarm Conditions Major alarm e Atleast one of the NTU LEDs displays a red alarm e Power failure of the NTUs Minor alarm e Atleast one of the NTU LEDs displays an amber alarm
2. 1 10 1 10 1 14 11 24 S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 28 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 4 6 Test Loops 4 6 1 Standard Test Loops The test loops can be activated via the monitor interface Slave Loop 1 Loop Repeater Master N side xDSL Channel C side xDSL Channel E1 interface Figure 4 6 standard Test Loops Note On the slave side Loop 1 can only be activated locally Loop 2 can only be activated remotely by the master Both the NE LED on the slave and the FE LED on the master will be lit amber when Loop2 is active At the regenerator point Loop2 and Loop1 can be activated locally or remotely by the master Both the NE LED on the regenerator and the FE LED on the master will be lit amber when Loop2 is active On the master side Loop 1 can only be activated locally Loop 2 does not exist The NE LED will be lit amber when Loop 1 is active 4 6 2 Analog Loop Back To test the AccessDSL equipment itself the Analog Loop Back can be used To perform this test the xDSL cable has to be disconnected from the unit and the test can be activated with the appropriate monitor command see chapter AccessDSL Monitor During the Analog Test Loop the xDSL receiver part receives the transmitted signal of its own transmitter due to the impedanc
3. D O O Microcontroller RAM test failure S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 80 of 83 WEB http www s access ch User Manual _S Access_ G SHDSL LTU NTU_Repeater_V1 66 14 2 Abbreviations 2B1Q 2 Binary 1 Quaternary ACO Alarm Cut Off AIS Alarm Indication Signal AIS R Alarm Indication Signal Alarm bit in xDSL frame Als s Alarm Indication Signal Subscriber BER H Block Error Rate High gt 30 according G 826 BER L Block Error Rate Low gt 15 amp lt 30 according G 826 BER S Excessive Block Error Rate CRC 4 Errors gt 805 on Subscriber CCITT International Telegraph and Telephone Consultative Committee ccs Common Channel Signaling CMU Control and Management Unit CRC Cyclic Redundancy Check E1 ITU T G 703 User Interface at 2048 kbit s ET Exchange Termination EOC Embedded Operations Channel FAS Frame Alignment Signal FC Failure Condition FEBE Far End Block Error HDSL High Bit Rate Digital Subscriber Loop HRP HDSL Regenerator Present ISDN Integrated Services Digital Network ITU T International Telecommunication Union LFA Loss of Frame Alignment LFA L Loss of Frame Alignment xDSL LEAS Loss of Frame Alignment Subscriber Los L LOSS of Signal Los s Less of Signal Subscriber side LT Line Termination LTU Line Termination Unit NC Not Connected S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44
4. 103 104 105 106 107 108 109 113 114 115 140 141 142 DB37 male DB25 male a b a b SAND SGND SGND a SGND b 103 104 105 106 107 108 113 115 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch Page 78 of 83 WEB http www s access ch User Manual _S Access_ G SHDSL LTU NTU_Repeater_V1 66 X 21 connect to DTE DB15 female DB25 male a b a b 15 X 21 ISO 4903 15 Pin Connectors female Note join together pins 22 amp 23 and 6 amp 20 at DB 25 side X 21 connect to DCE X 21 1ISO 4903 15 Pin Connector 15 male Note join together pins 22 amp 23 and 6 amp 20 at DB 25 side S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 79 of 83 WEB http www s access ch User Manual _S Access_ G SHDSL LTU NTU_Repeater_V1 66 14 APPENDICES 14 1 Initialization Errors At system startup various hardware selftests are performed If any initialization error occurs the startup procedure will be aborted and the monitor will display an initialization error code in hexadecimal representation Each bit of the word value corresponds to a specific initialization error and is set to one if the corresponding hardware is faulty The table below lists the possible initialization errors and their corresponding bit position in the error code word BitNr Initialization Error
5. 2 1 HELP Commande 46 9 3 2 2 MAIN Commande 46 9 3 2 3 CONNECT Cota E 46 9 3 2 4 DISCONNECT EE 46 9 3 3 Performance management PM ssssssssssssssrinrnnnnnnnnnrnnnnnnnnennnnnnnnnnnnnnnnnnnnnneneeenne 47 9 3 3 1 G826 Commande 47 Sc RC EE 48 9 3 3 3 RESETG826 Command EE 48 9 3 4 Fault and maintenance management FM 49 9 3 4 1 SQ Commande 49 9 3 4 2 STARTUP Command E 49 93 43 STATUS Command eegene 50 9 3 4 4 ALARM Commande 51 9 3 4 5 LOOP1 Commande 52 9 3 4 6 LOOP2 Commande 52 9 3 4 7 STARTAL Command EE 52 S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil AA Email contact s access ch Switzerland Page 4 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 4 8 SPECTRUM Commande 52 9 3 4 9 RESTART Commande 53 9 3 4 10 RESET COMMANG sisii erior a aaa a irra Ria 53 9 3 5 Configuration management CM 54 9 3 5 1 CONFIG Comma ind arrora a EE 54 935 2 G704 COMMANG BE 54 9 3 5 3 CRC4DET Commande 54 9 3 5 4 CRC4GEN Commande 54 9 3 5 5 EBIT Commande 54 9 3 5 6 AISGEN Command asenin a ENNEN 54 9357 AISDET COMMANG Zgtne useeetegueusget stees et eeE gr geed EEN DA 9 3 5 8 EXTCLK Commande 54 9 3 5 9 SERVICE Commande 55 9 3 5 10 TYPE Commande 55 9 3 5 11 BITRATE Commande 55 9 3 5 12 CLOCKMODE Commande 55 9 3 5 13 CLOCKDIR Commande 55 9 3 5 14 CLOCKEGDE Commande 55 9 3 5 15 SLOTUSAGE Commande 55 9 3 5 16 AUTOLOOP Commande 55 9 3 0 17 MODE ET DIE E ee dee EE EE 56 9 3 5
6. 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 10 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 AccessDSL PAM New Generation modems provide also a unique wetting current option When the cable network is worn out contact points in cable connections are often not in their best conditions It may lead to the situation when even not too long pairs suitable for POTS voice connections cannot be used for DSL transmission With wetting current option LTU sends to the loop low voltage signal to wei the bad contact and this way cure it Our long term experience in Eastern European markets shows that wetting current options can dramatically increase number of pairs usable for DSL installations AccessDSL PAM New Generation modems capabilities and user interfaces AccessDSL PAM series include three user interface options G 703 704 N 64 V 35 36 X 21 Ethernet 10BaseT Line and user interface speed can be adjusted from 192kbps up to 2 3Mbps in 8 or 64 kbps steps Industry standard G 703 704 interface is optimal for PBX remote concentrators DLC and TDM multiplexer s connections Digital interfaces V 35 36 or X 21 are very popular for campus point to point applications and terminal data equipment like routers PADS FRADS connections Ethernet 10BaseT is the best option for Internet access as well as for LAN to LAN bridging AccessDSL PAM offers Accessible multiservice and multipoint fu
7. 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 16 of 83 WEB http www s access ch 3 NTU AND REPEATER PANEL DESCRIPTION G SHDSL LTU NTU_Repeater_V1 66 Power Mini Fit 4 pin xDSL RJ 458 pin Connector Connector Come ffe 48VDC MONITOR Nx64 G 703 xDSL I K e D 7 ff LP DP Jo O ro Kach D e j Sa A Monitor Sub D9 N64 Sub D25 E1 120 Ohm Sub D15 Local Remote Optional female Connector female Connector male Connector Power Switch EarthTerminal Figure 3 1 NTU and Repeater Tabletop Rear Panel S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 17 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Power LED Tricolour LED for remote status Tricolour LED for local status Figure 3 2 NTU and Repeater Tabletop Up View S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 18 of 83 WEB http www s access ch 4 CONFIGURATION OPTIONS G SHDSL LTU NTU_Repeater_V1 66 The following sections describe the various configuration options The operating modes for the LTU are configurable via the V 24 monitor interface on the backplane or via the TMN The only hardware settings on the LTU board are for the wetting current and remote power described
8. 703 Physical Electrical Characteristics of Hierarchical Digital Interfaces ITU T G 704 Synchronous Frame Structures Used at Primary and Secondary Hierarchical Levels ITU T M 3400 TMN Management Functions ITU T K 20 Resistibility of Telecommunication Switching Equipment to Overvoltages and Overcurrents ITU T K 21 Resistibility of Subscribers Terminals to Overvoltages and Overcurrents EN 60950 Safety of Information Technology Equipment Including Electrical Business Equipment EN 55022 Grenzwerte und Messverfahren fur Funkst6rungen von informationstech nischen Einrichtungen ETS 300 019 Equipment Engineering Environmental Conditions and Environmental Tests for Telecommunications Equipment S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 83 of 83 WEB http www s access ch
9. Local Remote Power SA PAM ADRE1 IP ST Add Drop Repeater 1 xDSL PAM REMO 1 E1 120 Ohm 1 EIA 232 EIA 485 locally or remotely powered protected IP 67 housing external alarm management pene eae Repeater 1 xDSL PAM REMO 1 E1 120 Ohm 1 EIA 232 EIA 485 locally or remotely powered standard plastic housing external alarm management SA PAM SAN 4Eth R AccessDSL module stand alone 1 SHDSL NTU M S 4 10Base T bridge router local power including Power Adapter Europe DSL and Ethernet cables SA PAM SRL 4Eth R AccessDSL module subrack 1 SHDSL NTU M S 4 10Base T bridge router including DSL and Ethernet cables Note Models with E1 75 Ohm interfaces are also available Such models have in the product code E1U instead of E1B For other accessories like subracks management modules etc please see the AccessGain booklet Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 12 of 83 WEB http www s access ch 2 LTU FRONT PANEL DESCRIPTION G SHDSL LTU NTU_Repeater_V1 66 1 Tricolour LED for local status channel 1 2 Tricolour LED for remote status channel 1 3 Tricolour LED for local status channel 2 4 Tricolour LED for remote status channel 2 5 Tricolour LED for extension card status 1 6 Tricolour LED for extension card status 2 N64 Sub D25 female Connector E1 120Q Sub D15 male Connector xDSL RJ 45 8 p
10. User Manual G SHDSL LTU NTU_Repeater_V1 66 12 3 Environmental 12 3 1 Climatic Conditions Storage ETS 300 019 1 1 Class 1 2 Transportation ETS 300 019 1 2 Class 2 3 Operation ETS 300 019 1 3 Class 3 2 12 3 2 Safety EMC According to EN60950 EN 55022 Class B 12 4 Physical Dimensions and Weight 25 C 55 C 40 C 70 C 5 C 45 C 19 Plug in unit Dimensions height 262 mm 6 HE width 30 mm Weight 0 5 kg Minirack Dimension 483 W x230 D x43 5 H mm Weight 3 kg NTU V1 Dimensions 240 W x230 D x43 H mm Weight 1kg NTU V2 and repeater Dimensions 230 W x160 D x46 H mm Weight 0 7 kg S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 75 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 13 NX64 CABLES V 35 Connect to DTE V 35 ISO 2593 34 Pin Connector V 35 connect to DCE V 35 ISO 2593 34 Pin Connector Version 1 64 MRAC 34 female a b MRAC 34 male a b Page 77 of 83 G SHDSL LTU NTU_Repeater_V1 66 V 36 RS449 connect to DTE 19 37 V 36 ISO 4902 37 Pin Connector 20 female V 36 RS449 connect to DCE 20 V 36 ISO 4902 37 Pin Connector 37 19 male S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland DB37 female DB25 male a b a b SAND SGND SGND a SGND b
11. and none a red alarm e Power failure of the LTUs Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 34 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 7 LTU POWER CONCEPT Each LTU is fed via the backplane with dual 48 Vpc referenced to 0 VDC of the exchange battery The LTU converts these voltages to its onboard supply the wetting current voltage and remote power voltage see below The ground reference of all voltages on the secondary side of the LTU s DC DC converter are tied to FPE Functional Protective Earth This is done over the backplane as well as over the subrack with its LTU front panels Additionally the LTU is fed over the backplane s DC DC converter with an auxiliary 5 Voc supply referenced to ground The only purpose of this voltage to drive the alarm circuitry on each LTU even in the case of a failure of the LTU s onboard DC DC converter In case of a failure of the LTU s onboard power supply all LEDs on the front panel will be extinguished 7 1 Power modes SA PAM SR2L E1B MP RP Each channel of dual LTU can be configured as wetting current source or wetting current receipt or remote power source 7 1 1 Wetting current source With wetting current option LTU sends to the loop low voltage signal to wet the bad contact and this way cure it Our long term experience in Eastern European markets
12. dB of the actual connection Bitrate Bitrate of the actual connection SRU Number of detected repeater in loop Note Repeater and units in Multipoint and Dual Pair modes represent data for both xDSL interfaces Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 50 of 83 G SHDSL LTU NTU_Repeater_V1 66 9 3 4 4 ALARM Command The ALARM command displays the actual alarm status CO 01 FMM gt ALARM Local Alarm Status LOS S E LFA S off AIS S off AIS R OET BER S Off EXT LOC off DTROFF off ETC LOS off OS LFA H off SEGD off BER H off LOOP1 off LOOP2 off ALB Off TEST z Off CO_01_FMM gt Options T Turns alarm trace on off Definitions LOS S Loss of signal at subscriber E1 side LFA S Loss of frame alignment at subscriber E1 side AlS S Als Alarm Indication Signal detected at subscriber E1 side AIS R AIS Alarm Indication Signal detected at subscriber E1 side of remote unit BER S Excessive Block Error Rate on subscriber side If CRC4 enabled BER S on if more than 805 CRC4 Errors per second If CRC4 disabled BER S on if more than 28 FAS Errors per second EXT LOC Loss of external clock DTROFF V 35 V 36 DTR input is off X 21 RTS input is off ETC LOS V 35 V 36 X 21 Loss of exter
13. for RXB TXA enabled X731 closed Wetting current for TXB enabled If RX and TX are on separate lines X701 and X711 have to be closed in the other case where RX and TX are on the same line only X701 has to be closed The same rule is valid also for X721 and X731 The factory settings for the LTU are as follow The jumpers X701 and X721 are closed S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 38 of 83 WEB http www s access ch 8 NTU POWER CONCEPT G SHDSL LTU NTU_Repeater_V1 66 Each NTU is fed via the power supply Molex connector on the rear panel with 48 Vpc The NTU converts these voltages to its onboard supply with its DC DC converter In case of a failure of the NTU s onboard power supply all LEDs on the front panel will be extinguished Repeater and NTU which supports remote power can be powered remotely via xDSL In case of remote powering wetting current acceptance should be switched off remove jumpers see figure below ann a is a eng sien i i e S aa feh a Wetting current acceptance Figure 8 1 NTU Wetting current jumper locations S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 39 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 MONITOR 9 1 General The module can be connected t
14. link for safety reasons LTUs are always delivered as master factory setting NTUs are always delivered as slave factory setting The slave unit has the far end LED always off whereas the master unit has it always on 4 1 2 Repeater xDSL interfaces xDSL Repeater has two xDSL interfaces Network N side xDSL interface operates in slave mode and Customer C side xDSL interface operates in master mode N side interface operates toward CO side while C side transceiver works toward CP side Are there one or more repeaters in the xDSL link there C side and N side interfaces must be connected by appreciated method Otherwise start up might occur only for several segments of the link 4 1 2 1 N side xDSL interface operating modes N side xDSL interface operates only in rate adaptation mode l e it adjusts its line rate according CO if the repeater is the first in the link or neighbor C side xDSL interface base rate setting If opposite xDSL interface is in rate adaptation mode the system optimizes the bandwidth of this connection by adjusting the base rate value to the maximum where it is possible to get a stable connection S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 19 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 4 1 2 2 C side xDSL interface operating modes C side xDSL interface can operate in rate adaptation
15. of E1 is mapped to TSO of xDSL TS1 to TS1 and etc In this case it is impossible to transmit TS16 if line rate is lower than 17x64 8 kbps For transmission of TS16 when it is necessary to carry signaling bits the special mode E1 TS16 exist In this case TS16 is transmitted in the last available xDSL slot This special mode supported by muitiservice and multipoint units only Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 21 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 4 2 8 E1 Clock Modes XDSL Channel 2 Mbit s 2 Mbit s Ki Ba INP 2048 kHz INP 2048 kHz SS Figure 4 1 External Clock Mode In External Clock mode the 2048 kHz input clock coming from a clock input card via the backplane to the LTU is used as the E1 reference clock As the xDSL transceivers operate at a maximum clock frequency of 2064 kHz the 2048 kHz clock is not used physically to drive the xDSL transmit clock Data rate adaptation between the 2048 kHz clock and the xDSL transmit clock is achieved by stuffing deleting bits in the xDSL frames Note Signals towards the XVR section are always TX and signals coming from the XVR sections are always RX The following block diagram shows the possible clock sources on the LTU Note that the clock sources are intended to be references only and do not drive the HDSL transmit section physically
16. shows that wetting current options can dramatically increase number of pairs usable for DSL installations The wetting current is a small current of about 2 4 mA which is sourced by the LTU and sinked by the NTU 7 1 2 Wetting current receipt In LTU LTU application one of LTUs can be also configured as remote power receipt 7 1 3 2x100V power mode Allows having one remotely powered NTU or Repeater at each xDSL line The output remote power voltage is 115VDC 7 1 4 1x200V power mode Allows having one remotely powered Regenerator and NTU or two remotely powered Regenerators at xDSL line A The output remote power voltage is 200VDC S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 35 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 7 1 5 Power jumpers There are two jumpers J1107 and J1108 for remote power voltage selection and six jumpers J1101 J1106 three for each xDSL on the LTU to select between wetting current source wetting current receipt and remote power mode of 000 aoe Food too oo2 000 B 7 onacata i Eel ICH i SL ECHO BARAT Lo SS ES iT d fe a oe oe oe oe oe oo ae oe oe KAMEN E WI E Oct D Al O a oo Reg jd A ol 1 Ol om on lo R p H EH np os Es H WS J1101 Figure 7 1 LTU current jumper locations S Access GmbH Te
17. 1 framer before being transmitted to the E1 network The E1 framer operates in the CCS mode Time slot 16 is fully transparent except Multipoint PCM30 mode Consider the CRC4DET and CRC4GEN option when operating in the framed mode 4 2 2 CRC4DET Option If operating in the framed mode the CRC4DET option can be used to adapt the LTU to specific E1 network requirements e f enabled the E1 framer will synchronize on CRC4 multiframes and CRC4 errors will be reported e If disabled the E1 framer will synchronize on basic frames only and no CRC4 errors will be reported For STU SW versions before 1 6 5 4 in this mode time slot 0 is regenerated toward E1 side A Bit is set to 0 and the national bits Sa Bits are set to 1 while for STU SW versions 1 6 5 4 and later in this mode time slot 0 is fully transparent S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 20 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 4 2 3 CRC4GEN Option If operating in the framed mode and CRC4DET option is enabled the CRC4GEN option can be used to adapt the LTU to specific E1 network requirements e f enabled the E1 framer regenerates the CRC4 multiframe alignment and checksum words in the outgoing E1 signal The A Bit is set to 0 and the national bits Sa Bits are set to 1 e If disabled time slot 0 passes transp
18. 18 MASTER Commande 56 9 3 5 19 PLL Commande 56 9 3 5 20 ID Command gies Ee EEN ed duu Reeg ege ar oir i 56 9 3 5 21 AUTORESTART Commande 56 9 3 5 22 BASERATE Commande 56 9 3529 lt PCMiCOMMANG BEER 56 9 3 5 24 IDLECAS Commande 56 9 3 5 25 PAYLOAD Command ccscsscsesscnessenscususencoususenceueusencusevestousevesseuuaventeucane 56 9 3 5 26 TSOSRC Commande 57 9 3 5 27 ADAPTIVE Commande 57 9 3 5 28 POWER Commande 57 9 3 5 29 DEFAULT Commande 57 9 3 5 29 1 E1 only Normal or Dual Pair Mode cece eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 58 9 3 5 29 2 Nx64 only Normal or Dual Pair mode 0 0 0 0 eee eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeres 60 9 3 5 29 3 fE1 amp Nx64 Normal or Dual Pair mode cece cc eseceeeceeeeeeeceneeeeeeaneees 62 9 3 5 29 4 Multipoint Mode ennenen renere nnee nn ennen rnnr rnrn ennen nanenane nnne nrnna nennen 64 9 3 5 29 5 Add Drop Repeater en ennenen ennenen eenen enere nnne nenn nnen nnen n annn annann nnana 65 10 SOFTWARE URDATE gue ENERNEt RENE sesueceinasitnivicevetuansvaasatdacteenaddisantiaiuetaansansdviatanntins 66 10 1 eJI E E N EAA EE T AE ees 66 10 2 SOFTWARE DOWNLOAD ccccccccececeeeceeeuceeeueueeeeueeeeceueueueeeeueeuaueeeaueueuuueeuaueueaueuuaueananes 66 11 CONNECTORS DESCRIPTION c cccccccesssseseeeeeeeeceeeseeeeeeeeeseeeeessaeeseeeeesuenensesseeeeseens 71 11 1 XDSL CONNECTOR SA PAM SRL E1B N64 AND SA PAM SR2L E1B 0 71 S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47
19. 36 X 21 Direction ITU T Description Name Description Name 1 Shield 7 102 Signal Gnd SG Signal Gnd G 2 103a_ Transmit Data A TD A Transmit A Ta To DCE 14 103b Transmit Data B TD B Transmit B Tb To DCE 3 104a Receive Data A RD A _ Receive A Ra To DTE 16 104b Receive Data B RD B _ Receive B Rb To DTE 4 105a_ Request To Send A RTS A Control A Ca To DCE 19 105b Request To Send B RTS B Control B Cb To DCE 5 106a Clear To Send A CTS A Indication A la To DTE 13 106b Clear To Send B CTS B Indication B Ib TODTE 6 107a Data Set Ready A DSR A TO DTE 22 107b Data Set Ready B DSR B TO DTE 20 108a Data Terminal Ready A DTR A TO DCE 23 108b Data Terminal Ready B DTR B TO DCE 8 109a Data Carrier Detect A DCD A TO DTE 10 109b Data Carrier Detect B DCD B TO DTE 24 113a_ Terminal Transmit Clock A TTC A DTE Signal Element Timing A Xa TO DCE 11 113b Terminal Transmit Clock B TTC B DTE Signal Element Timing B Xb TO DCE 15 114a Transmit Clock A TC A TO DTE 12 114b Transmit Clock B TC B TO DTE 17 115a Receive Clock A RC A Signal Element Timing A Sa TO DTE 9 115b Receive Clock B RC B Signal Element Timing B Sb TO DTE 21 140 Remote Loopback RLB TO DCE 18 141 Local Loopback LLB TO DCE 25 142 Test Mode TM TO DTE 11 6 Monitor Interface Pin Signal Description 1 FPE Functional Protective Earth o 5 2 TXD EIA 232 Transmit Data 9 O o 3 RXD EIA 232 Receive Da
20. 41 MS EE 19 Ze S 19 4 1 2 Repeater ARTE Abee ENER ENER 19 4 1 2 1 N side xDSL interface operating modes A 19 4 1 2 2 C side xDSL interface operating modes eee cece cette eee eeentaeeeeeeeeeeeeeeaea 20 4 1 3 INOMMAVD Ul pair MOde eege sees 20 4 2 E1 INTERFACE 2 M mieG 03 G 04 20 421 PRIMING EE 20 4 2 1 1 Transparent Mode 20 4 2 1 2 Framed Mode ITU T 6 704 o ccccscsccccteescccetessasceesessaesseestecenenedasicaenesccmncnss 20 422 GRC4DET ODO E 20 42 3 GCACEGEN ODOM ET 21 E ER Ee a T A aS 21 425 AlS GOGO EE 21 e o O DCC CHO ER 21 427 Transmission OF 11 G recriciesceuteetsticsactentrueesctcntenuesanwtaseyeednnwnsscepteuessunstnanincuedeatvansnss 21 428 El IORI Mod s ee EE 22 4 3 NX64 eeh nennen nssr e Ennet 24 e Dr e 24 4 3 2 NX64 Clock Directions ee tecneeetecceeeeeeeeaaeeeeseeaaeeeeseanaeeeteniaaeeessnaees 24 4 3 3 Nx64 Clock EE Eeer 24 4 3 4 NX64 et E 25 Automatic Ee 26 4 4 MuCHPGINTUEERATIEON tesienck tereseEktestgehtER GASS deEEOASE deet GEES ege 27 4 5 EE 28 46 TESTLOOPS EE 29 46 1 Standard Test LOC DS errer ersei enir E E E E REE 29 4 6 2 Analog Loop EE 29 5 PERFORMANCE MONITORING sssanessnnnnnnnnnnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnnm 30 5 1 G 826 PERFORMANCE MONITORING iii sccccccsccceccstasesecnssasteecndancnte sdsenncsnansdenmemeeacenenenne 30 6 Ee 31 6 1 GENER L E 31 6 2 BE 31 6 2 1 Status LEDs LTU NTU except Multipoint Model 31 S Access GmbH Tel 41 44 70031 11 Ob
21. 7 Wettswil a A Email contact s access ch Switzerland Page 67 of 83 WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 7 Execute the command Connect COM in the menu Action Flash Loader lungen JMG Eigene Dateien 5 Access _Tech _Produkt OOC_4W_SRU_XMP1 sss Clear screen Ctrl Shift C Exit 8 Switch on the power of your LTU NTU 9 The following message appears on the screen then press Ja Flash Loader COM1 connected re allocate memory e Flashloader Pam_STU_Flash_2500C_4W_SRU_XMP1 sss CDR connected Flash Loader HW Undefined SW Rey 2 5 3 0 Erase Application Nein S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 68 of 83 file C Dokumente und Einstellungen JMG Eigene Dateien S Access _Tech _Produkt Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 10 During the download the FE LED is green blinking and the NE LED is amber On the Windows screen you see the ongoing download Flash Loader COM1 connected LI ell Flash Loader Send Panel EE ess _Tech _Produkt Sending C Dokumente und Einstellungen JMG Eigene Dateien S Access _Tech _Produkte Flashloader Pam_STU_Flash_2501 Progress Stop Disconnect COM E 11 If the download is successfully finished the Flash Loader program sends the following message Flash Loader COM1 connect
22. 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 81 of 83 WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 NEXT NM NT NTU PDH PRA RX SDH SMF SQ TE TMN TX UIF UTP XVR S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Near End Cross Talk Noise Margin Network Termination Network Termination Unit Plesiochronous Digital Hierarchy Primary Rate Access Receive Synchronous Digital Hierarchy Sub Multiframe Signal Quality Terminal Equipment Telecommunication Management Network Transmit User Interface Unshielded Twisted Pair Transceiver Page 82 of 83 Tel 41 44 700 3111 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 14 3 References 14 3 1 Standards ETSI ETR 152 Transmission and Multiplexing TM High Bit Rate Digital Subscriber Line xDSL Transmission System on Metallic Local Lines xDSL Core Specification and Applications for 2048 kbit s Based Access Digital Sections ITU T G 821 Error Performance of an International Digital Connection Forming Part of an Integrated Services Digital Network ITU T G 826 Error Performance Parameters and Objectives for International Constant Bit Rate Digital Paths at or above the Primary Rate ITU T G 823 The Control of Jitter and Wander within Digital Networks Which Are Based on the 2048 kbit s Hierarchy ITU T G
23. DSP Core loopback LOOP2 alarm is active on Master and Slave sides Automatic Loop1 1 1 1 1 0 0 0 TX Data is looped back to RX setting at Slave side at Nx64 Slave Network activated by LL line Interface LOOP1 alarm is on Slave interface active on Slave side S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 26 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 4 4 Multipoint Operation In Multipoint mode E1 data is multiplexed to two xDSL interfaces First n channel time slot is transmitted through xDSL interface A while other m channel slots via xDSL interface B There are two sub modes PCM30 when TS16 is processed as signaling slot and PCM31 when TS16 is considered as channel slot Example1 PAYLOAD 10 14 PCM 30 BASERATE 20 22 Timeslots exchange table DSL interface A DSL interface B G 703 interface 0 see CRC4GEN 0 see CRC4GEN 0 see CRC4GEN 1 10 1 10 1 5 11 15 6 14 17 25 16 see PCM 16 see PCM 16 see PCM 11 15 17 19 15 17 22 26 31 IDLE IDLE IDLE Example2 PAYLOAD 10 14 PCM 31 BASERATE 11 15 Timeslots exchange table DSL interface A DSL interface B G 703 interface 0 see CRC4GEN 0 see CRC4GEN 0 see CRC4GEN 1 10 1 10 1 14 11 24 S Access GmbH Oberhausenstrass
24. Fax 41 44 700 31 13 8907 Wettswil AA Email contact s access ch Switzerland Page 5 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 11 2 ARC eene 71 11 3 E1120 OHM CONNECTOR ccccscseseesecceceecaeeeeeceeceeeecaeaueueseeeeeseeeauaeenceceseeseataneeseeeeas 71 11 4 E1 75 OHM IN OUT CONNECTORS 72 11 5 V 35 DCE CONNECTOR ccccccccccceceeseeececeececeeeeeaesceceeeeeeeeaeseseeeeeeeeeaeaueueeeeeeseeeanaenens 72 11 6 MONITOR INTERFACE 72 11 7 POWER INTERFACE SA PAM SAN E1B V1 AND SA PAM SAN E1B N64 V1 73 11 8 POWER INTERFACE 73 12 TECHNICAL SPECIFICATION cceccccccessesseeeeeeeceseecnseeeeeeeeesueaeanseeeeeeeeeseanenseneeeesseees 74 12 1 INTERFACE S EE 74 12 1 1 XDSL ee E EE 74 12 1 2 E1 Line joteriz ce 74 12 1 3 V 35 DCE User Interface csiis ae a a iaeaea 74 12 1 4 Monitor INTCITACE 0 cc eeecccccenccceneeseecencnseecenenseesaneneeeenanneesenseneesenseteesensunessensanestens 74 12 2 POWER SUPPLY Age s EE 74 12 3 ENVIRONMENTAL eise ege e Eed 75 12 3 1 Climatic Conditions cccccccccccccceceeenceccecccecenenesecececeeecenenenseeceeeueasneneeseeteesesananeneseess 75 123 2 Safety eeben 75 12 4 PHYSICAL DIMENSIONS AND WEIGHT 75 13 NX64 CABLES gars OEKeEkERSNEASN ENN OI EURSSKTVENERERNEAENNEKE KEN RER idadi aasid da Nanaia dainai 77 14 3 Teller EN 80 14 1 INITIALIZATION ERRORS uu cccccccccccceeseeceececeecaeaeseececeeeeecaeaueueuceeeeeaeauuaeneeceseeeaeeueaensseeeess 80 14 2 ABBREVIAT
25. G SHDSL LTU NTU_Repeater_V1 66 G SHDSL LTU NTU_REPEATER_V1 66 SA PAM xxx xDSL TRANSMISSION SYSTEMS USER MANUAL Version 1 66 Revision 16 Januar 2005 Document name SA UM G SHDSL LTU NTU_Repeater_v1 66 2005 CDez 06 doc S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 1 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Copyright 2002 by S Access GmbH The contents of this publication may not be reproduced in any part or as a whole transcribed stored in a retrieval system translated into any language or transmitted in any form or by any means electronic mechanical magnetic optical chemical photocopying manual or otherwise without the prior written permission of S Access GmbH Published S Access GmbH All rights reserved S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 2 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 VERSION CONTROL chee cee ete eal ce 8 1 THE ACCESS FAMILY E 9 2 LTU FRONT PANEL DESCRIPTION jo cicesccissccsccscesssccteiceancsecseeastecesenenesteaeseaneecansneneterennncnes 13 3 NTU AND REPEATER PANEL DESCRIPTION ccccssseeeeesseeeeeeeeseseeeeeeeseeeeeeneeeeeeeeeneeeees 17 4 CONFIGURATION OP THONG usteet gesteet scenes cc cc tn ssatec ccantecenttecnaccecaxanecineapencenes 19
26. IONS ee EE Ee 81 14 3 REFERENCES Eesen eegene EE eebe EE EEN EES ER 14 3 1 SlANGAIOS EE 83 S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 6 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 FIGURES Figure 2 1 Figure 2 2 Figure 2 3 Figure 3 1 Figure 3 2 Figure 4 1 Figure 4 2 Figure 4 3 Figure 4 4 Figure 4 5 Figure 4 6 Figure 5 1 Figure 7 1 Figure 7 2 Figure 7 3 Figure 8 1 Figure 9 1 Figure 9 2 Figure 9 3 Subrack Front Panel E1 DEE eeeeg ege Eege 13 Subrack Front Panel E1 ER Aerer 14 Dual Subrack Front Panel E1 75 Q E 15 NTU and Repeater Tabletop Rear Panel 17 NTU and Repeater Tabletop Up View c ccccccccceecceneeeeeeaeeaaeeaaeeaaeeaaeeaaaeeaeeaes 18 External Clock Mode EE 22 EE 22 Synchronous EE 23 Plesiochronous Operation 23 NX64 Block Ree cr adesencanceds tread snadusadicdtinctiecnenannurecateteteamuannitoesthatathadaileadschanteanenas 25 standard Test LOOPS ccccccceeeceeeeeeeeeeeeeeeeeeeeeeeeee eee EEEE E EE EEEE EEEE EEEE EE EEEE EEEE EEEn E EEEE 29 G 826 Performance Evaluation ccceccceeeeeeeseeeeeneeeeeeeeeeseneaneceeeesneneesesneeeeees 30 KIEeurgengIutgperoCtoeegesegeerge nie suergt dee ee Ces 36 Current Limiter state MaACHING ccceccccceseeeene ee eeeeseeccneneeeeeenennensaenneeeeeeseneeeenneceees 37 LTU Wetting current jumper loc
27. Loader Communication v Enable auto Load after Receiving Request Enable disconnect COM after successful Load Flash Loader Load COM Settings COM Options Port com H Baud Rate 38400 e Cancel Data Bits Parity Stop Bits DTR DSR HSC Vv Si j Flow S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 66 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 5 Choose Select Device in the Setting menu select the device S Access and press Ok Flash Loader DER Siem Help eros Flash Loader Set Loader Communication n f v Enable auto Load after Receiving Request Enable disconnect COM after successful Load re allocate memory Flash Loader Device Settings r Select Device Device Cancel 6 Choose the newest software version and press ffnen Flash Loader Open Program File Suchen in S Access flashloader_actual sl DIr ES r Pam_SRU_Flash_2000 sss Spam ST Esch 2000 ses Zuletzt Pam_STU_Flash_16812B_AB_k10_V1 15 sss verwendete D e Desktop Eigene Dateien Arbeitsplatz Netzwerkumgeb Dateiname Pam_STU_Flash_16812B_AB_k10_V1 15 sss_ ung Dateityp SREC Files sss x Abbrechen S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 890
28. Loops See xDSL ode Normal aster Slave Master Power off PLL off Autorestart on Base Rate 32 Rate Adaption off S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 59 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 9 3 5 29 2 Nx64 only Normal or Dual Pair mode CO_CM gt DEFAULT 0 Local Configuration 2 Mbit s Framing CRC4 Detection CRC4 Generation E Bit Insertion AIS Detection AIS Generation External Clock Nx64 Service Nx64 only Interface Type V 35 Bitrate 512 kbit s Clock Mode internal Clock Direction contradirectional Clock Edge inverted Use Timeslot 0 no V 54 Loops disabled xDSL ode Normal aster Slave Master PLL off Autorestart on Base Rate 09 Rate Adaption off CO_CM gt DEFAULT 1 Local Configuration 2 Mbit s Framing CRC4 Detection SA CRC4 Generation E Bit Insertion AIS Detection kam AIS Generation External Clock Nx64 Service Nx64 only Interface Type V35 Bitrate 1024 kbit s Clock Mode internal Clock Direction contradirectional Clock Edge inverted Use Timeslot 0 no V 54 Loops disabled xDSL ode Normal aster Slave Master PLL oft Autorestart on Base Rate 17 Rate Adaption off S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 60 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Ema
29. PLL on the transmit side from Nx64 to the xDSL interface is on e internal In this clock mode the DCE is clock master and the PLL is off generating a 2048 kHz clock from the internal oscillator directly Serice DTE DCE DCE l xDSL Clock Mode Clock Mode Clock Direction Clock Mode Slave internal don t care Master Slave external dont care Slave Nx64 only Master external codirectional Master Master external contradirectional Master Master don t care don tcare Slave Slave from E1 don t care Master Nx64 amp fE1 Slave from E1 don t care Slave Note Invalid clock modes are ruled out Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 24 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 4 3 4 Nx64 Block Diagram The following block diagram shows the receive and transmit path separately Each direction possesses a FIFO buffer and a PLL H Rx PLL Osc RxClk_Nx64 ra k RxClk_xDSL RxData_Nx64 e is Le RxData_xDSL FIFO a FIFO Enable Le Rx Framer ra RxSync_xDSL gt _ gt pse Tt gt lt TxClk_E1 Ge L Service TxClk_Nx64 raf TxClk_xDSL TxData_Nx64 p gt SE TxData_xDSL Ce TxData_E1 FIFO Ena
30. POWER ID AUTORESTART BASERATE DEFAULT ADAPTIVE Figure 9 2 LTU NTU Monitor Command Set Tree Multipoint Mode S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 43 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 User Manual The repeater command set tree is shown below Main Menu Performance Fault and Maintenance Configuration G826 SQ CONFIG G826 C STARTUP CRC4DET G826 E1 STATUS CRC4GEN G826 E1 C ALARM EBIT RESETG826 ALARM T AISGEN LOOP1 AISDET LOOP2 IDLECAS STARTAL PCM RESTART PAYLOAD RESET TSOSRC SPECTRUM AUTORESTART BASERATE ADAPTIVE ID Figure 9 3 ADD DROP Repeater Monitor Command Set Tree S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 44 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 9 3 1 Main Menu AccessDSL Subrack Dual El ID UNIT 1 HW Rev BO SW Rev 1 6 4 0 FW Rev R1 7 Copyright C 2002 by S Access GmbH sa Main Menu 1 Performance management PM 2 Fault and maintenance management FMM 3 Configuration management CM 4 Select next channel 5 Exit CO_01_MM gt Select 1 5 To select the sub menus type 1 to 5 Note Each comman
31. SN The response could be 01 03 08 10 11 12 Note Each command must be terminated by a carriage return Please note that if the auxiliary 5 Vpc power supply on the backplane fails indicated by an extinguished 5V LED on the backplane the monitor function will cease to function but the transmission facilities of the LTUs are still fully guaranteed The NTU and Repeater can be connected to terminal or PC directly S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 40 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 Structure amp Organization The structure and organization of the AccessDSL monitor is adapted to ITU T Recommendation M 3400 for TMNs with its five sub sets As AccessDSL does not support Accounting management nor Security management AM and SM are not in the monitor s main menu At any time the lt H gt Help command shows and explains the available commands and their parameters The prompt on the screen consists of e amaster slave or repeater CO central office CP customer premise RR repeater indication e the slot number lt SN gt indication or the repeater address indication e the shortform of the specified sub set menu For example CO_04 FMM gt RR O4 EMMG Note Repeater address is calculated as repeater position starting from CO side in the xDSL chain p
32. Set timeslot 16 processing on 31 Set timeslot 16 processing off This command can only be applied at Repeaters and dual pair units 9 3 5 24 IDLECAS Command This command sets the idle pattern 1 F for TS16 9 3 5 25 PAYLOAD Command In multipoint mode this command sets the numbers of channel timeslots to be transmitted to xDSL interfaces A and B In ADD DROP repeater monitor this command sets the numbers of channel timeslots to be transmitted to C side xDSL and E1 interfaces S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 56 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 5 26 TSOSRC Command Set source for receiving TSO and MFAS C DSL C side E E1 9 3 5 27 ADAPTIVE Command Set rate adaption on off 9 3 5 28 POWER Command Set remote power on off 9 3 5 29 DEFAULT Command The DEFAULT command sets a default configuration Six default settings are available three for master three for slave in each of following modes E1 only Normal or Dual Pair mode Nx64 only Normal or Dual Pair mode fE1 amp Nx64 Normal or Dual Pair mode and Multipoint Mode Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 57 of 83 WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 9 3 5 29 1 E1 only Normal
33. The E1 interface clock is never affected by the crystal controlled HDSL clock INP 2048 kHz via backplane E1 Side sear XDSL Side clock gt E p_e XDSL gt 2 Mbit s Tx Clock A Stuff Tx Delete Internal A Clock 2048 kHz qa Fl ova oe XDSL ecove Rx Recovered 2048 kHz Clock Rx E Figure 4 2 Clock Sources If the External Clock option is enabled the primary E1 clock source is the external clock If no external clock is present at the 2048 kHz clock input the E1 transmit clock is used as the clock S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 22 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 source on the master side only If no signal is received at the E1 port then the internal clock is used as the clock source If the External Clock option is disabled the primary E1 clock source is the 2 Mbit s transmit clock If no signal is received at the E1 port then the internal clock is used as the clock source The external clock is never used to drive the E1 RX direction As long as the xDSL link is not established the internal clock oscillator is used as the clock source The clock sources are automatically switched by the microcontroller depending on the actual signal and clock status which is update
34. V 36 X 21 SW configurable side only and do not affect the xDSL operating mode 4 3 1 Nx64 Services One can choose between three available services e E1 only With this service mode the Nx64 interface is shut down No payload data is transferred to from Nx64 transceiver e Nx64 only With this service mode the E1 transceiver is shut down or is sending AIS No payload data is transferred to from E1 transceiver e Multiservice Nx64 amp fE1 With this service mode the available xDSL payload is divided into Nx64 payload and E1 payload The Nx64 payload always starts at timeslot 1 upwards skipping timeslot 16 up to timeslot 31 then using timeslot 16 and at last timeslot 0 The E1 payload follows after the last used Nx64 timeslot 4 3 2 Nx64 Clock Directions There are two options available e codirectional Transmit clock and transmit data have same directions i e both are inputs to the modem at signal number 113 clock and 103 data e contradirectional Transmit clock and transmit data have opposite directions i e transmit clock is output from modem at signal number 114 and transmit data is input to the modem at signal number 103 4 3 3 Nx64 Clock Modes The following table shows different combinations of clock modes some of which are invalid There are three possible DCE clock modes e from E1 This clock mode is active when the E1 interface is active e external In this clock mode the DCE is clock slave and has its
35. ack CO_01_FMM gt STARTAL analog loopback started analog loopback active CO_0O1_FMM gt Notes e Detach the xDSL line before starting the analog loopback If the analog loopback is started while a remote station is attached to the xDSL line the remote station signal will interfere with the loopback signal causing bit errors on the network interface e Toreturn to normal operation type STARTAL again or use the RESET command Note In Multipoint mode and for Repeater STARTAL command has a parameter which assign necessary xDSL interface 9 3 4 8 SPECTRUM Command The SPECTRUM command initializes the xDSL analog output for power measurements CO_01_FMM gt SPECTRUM analog spectrum started analog spectrum active CO_0O1_FMM gt CO_01_FMM gt SPECTRUM analog spectrum stopped CO_01_FMM gt Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 52 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Note In Multipoint mode and for Repeater SPECTRUM command has a parameter which assign necessary xDSL interface 9 3 4 9 RESTART Command By typing RESTART the actual channel will be restarted CO_01_FMM gt RESTART restarting channel CO DI EM Note In Multipoint mode and for Repeater RESTART command has a parameter which assign necessary xDSL interface 9 3 4 10 RESET Command By typing RESET the system unit
36. arently in the outgoing E1 signal i e the A Bit and all national bits Sa Bits are fully transparent 4 2 4 E bit Insertion If operating in the framed mode and CRC4GEN option is enabled the EBIT option can be used to adapt the LTU to specific E1 network requirements e If the automatic E Bit generation is enabled detected CRC4 errors will cause the assertion of the E bits e lf disabled all the E Bits are set to 1 The E bit insertion option is not relevant in transparent mode or if CRC4GEN is disabled 4 2 5 AIS Generation If this option is enabled an unframed AIS all 1 s will be transmitted on the E1 side irrespective of whether the system is configured in the transparent or framed mode AIS generation will be activated on the following conditions e xDSL link to the remote station is not established loss of signal or loss of frame alignment on xDSL side or e remote station is sending AIS or e AIS R alarm is active If AIS Generation is disabled no signal will be transmitted on the E1 side if any of these three conditions occurs 4 2 6 AIS Detection If AlS Detection is enabled receiving AIS from the E1 side will cause the following actions e The Non Urgent alarm will be set active AIS S e AIS will be transmitted to the remote station by AIS R 4 2 7 Transmission of TS16 In Normal and Dual Pair Modes E1 data is loaded to xDSL according ITU T G 991 2 In these modes TSO
37. ations ccceeeeeeeeeeeeeceeeeeneeeeeeeeeesenereeeeeeeees 38 NTU Wetting current jumper locations c cccceeneeeeeeeeseeeeeeceeeeseeeesneneeseeeeeeeees 39 LTU NTU Monitor Command Set Tree Normal Dual Pair Modes 42 LTU NTU Monitor Command Set Tree Multipoint Mode 43 ADD DROP Repeater Monitor Command Set Tree 44 S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 7 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 VERSION CONTROL User Manual Date Version of Major changes to previous version version Firmware 10 LI 00220 Initial Version O EE a2 LI u p Update gt S O a4 T2000 Update S O a5 1300 Update S O RE eso Update _ Jl STU T 6 5 4 Update Adding ADD DROP SRU 1 6 4 1 STU 1 6 8 2 Update Remote Powering amp 1 7 1 2 SRU 1 6 6 2 23 Oct 02 STU 1 6 8 2 amp 1 7 1 2 SRU 1 6 6 2 1 7 4 73 Update Connector drawings se 1 6 6 6 1 6 8 32 34 amp Update 4 5 correction example baserate to 26 SRU H 6 6 6 Warnings Please read this manual carefully before operating the system Installation of this equipment has to be done by qualified personnel only To achieve safety and satisfactory EMC performance the LTU board has to be inserted into the subrack Subrack slots that are not used have to be covered with a blanking plate The subrack must be b
38. be delivered with a special environmental protection including temperature range down to 20C and underground mountable fully isolated stainless steel housing AccessDSL PAM New Generation modems ordering information The list of available AccessDSL PAM modules SA PAM SAN E1B V1 AccessDSL module stand alone 1 xDSL PAM CAP NTU M S REMO 1 E1 1200hm SA PAM SAN E1B V2 AccessDSL module stand alone 1 xDSL PAM CAP NTU M S REMO 1 E1 1200hm Pere PRA Local Remote Power po eee eee module stand alone 1 xDSL PAM CAP NTU M S 1 E1 1200hm 1 V 35 Local Power E module stand alone 1 xDSL PAM CAP NTU M S REMO 1 E1 1200hm PRA 1 N64 V 35 V 36 X 21 EIA 232 EIA 485 multiservice Local Remote Power EE module stand alone 1 xDSL PAM CAP NTU M S REMO 1 N64 V 35 V 36 X 21 EIA 232 EIA 485 Local Remote Power SA PAM SRL E1B N64 AccessDSL module subrack 1 xDSL LTU 1 V 35 1 E1 1200hm SA PAM SR2L E1B AccessDSL module subrack 2 xDSL PAM 2 pair LTU M S REMO 2 E1 120 PRA eer EE module subrack 2 xDSL PAM 2 pair LTU M S REMO 2 E1 120 PRA Multipoint Remote Power ee module Stand Alone 2 xDSL PAM 2 pair NTU M S REMO 1 E1 120 Ohm PRA 1 N64 V 35 V 36 X 21 EIA 232 EIA 485 multiservice multipoint Local Remote Power fo module Stand Alone 2 xDSL PAM 2 pair NTU M S REMO 1 E1 120 Ohm PRA 1 N64 V 35 V 36 X 21 EIA 232 EIA 485 multiservice multipoint
39. ble 4 ra Tx Framer TxSync_xDSL ra TxSync_E1 Figure 4 5 Nx64 Block Diagram Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 25 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Automatic V 54 loops User Manual System supports V 54 loops managed by 140 142 lines Supporting of V 54 loops is SW programmable Slave Master Master Slave State Name RL LL Tl RL LL Tl DSR State Description Normal 1 1 1 1 1 1 0 Data Transmission Loop1 at Master Side 1 1 0 1 1 1 0 TX Data is looped back to RX Setting by terminal at Nx64 Master Network command Interface LOOP1 alarm is active on Master side Loop2 Setting by 1 1 0 1 1 0 1 Data from DSL is looped terminal command back towards Master side in Slave DSP Core loopback LOOP2 alarm is active on Master and Slave sides Loop1 at Slave Side 1 1 1 1 1 0 0 TX Data is looped back to RX Setting by terminal at Nx64 Slave Network command Interface LOOP1 alarm is active on Slave side Automatic Loop1 1 0 0 1 1 1 0 TX Data is looped back to RX setting at Master side at Nx64 Master Network activated by LL line Interface LOOP1 alarm is on Master interface active on Master side Automatic Loop2 0 1 0 1 1 0 1 Data from DSL is looped activated by RL line back towards Master side in on Master interface Slave
40. d every 100 ms Synchronous and plesiochronous operation Both synchronous and plesiochronous operation modes are possible Synchronous operation occurs when the E1 equipment at one end of the xDSL link uses the receive clock as transmit clock as shown below In this case receive PLL in master modem XVR is disabled E1 Equipment Master xDSL Channel Slave E1 Equipment E1NTU E1NTU Rx ees Bei i SE Rx lt a 4 lt q Tx 4 2048 kHz Clock Figure 4 3 Synchronous Operation Plesiochronous operation occurs when the E1 equipment at both ends of the xDSL link has its own clock generator as shown below In this case receive PLL in master XVR should be enabled E1 Equipment Master xDSL Channel Slave E1 Equipment tt gt Tx ELNTU ELNTU Rx EE ee af UE een P Rx lt Tx Par 2048 kHz Clock 2048 kHz Clock Figure 4 4 Plesiochronous Operation Warning Do not configure the E1 interfaces at both ends to use the receive clock as transmit clock except if one xDSL equipment is an LTU using the External Clock option Otherwise there will be no defined clock Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 23 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 4 3 Nx64 Interface DCE The following configuration options refer to the Nx64 V 35
41. d must be terminated by a carriage return S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 45 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 2 Common Commands Common commands are available in every sub menu 9 3 2 1 HELP Command By typing the letter H followed by ENTER all available commands of the actual sub menu are displayed 9 3 2 2 MAIN Command By typing the letter M followed by ENTER you return to the Main Menu Screen 9 3 2 3 CONNECT Command The CONNECT command opens a virtual terminal connection to the remote unit i e characters received at the local unit s V 24 interface are sent to the remote unit and characters screen messages sent from the remote unit are transmitted back to the local unit s V 24 interface During a virtual terminal session the local unit is not available any more unless you close your virtual terminal connection by typing the DISCONNECT command or by selecting Exit on the Main Menu Screen of the remote unit Some commands will be unavailable from a virtual terminal connection for safety reasons Add the parameter R to connect to the remote unit i e LTU or NTU or type the repeater number 1 to 8 instead of R to connect to the selected repeater this is only possible from master side 9 3 2 4 DISCONNECT Command The DISCONNECT command closes th
42. e 47 8907 Wettswil a A Switzerland Page 27 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 4 5 ADD DROP Operation In ADD DROP Repeaters data from N side xDSL interface is multiplexed to E1 and C side xDSL interface First n channel time slot is transmitted through C side xDSL interface while other m channel slots via E1 interface There are two sub modes PCM30 when TS16 is processed as signaling slot and PCM31 when TS16 is considered as channel slot Time slot 0 from N side xDSL interface is transmitted transparently toward C side xDSL and E1 interfaces Transmission of time slot O toward N side xDSL interface is SW programmable Example1 PAYLOAD 10 14 PCM Mode 30 BASERATE 26 TSO Source DSL C side Timeslots exchange table C side xDSL interface G 703 interface N side xDSL interface 0 to CP from N side 0 to E1 see CRC4GEN 0 to CO from C side 0 to N side from DSL 1 10 1 10 7 1 5 11 15 6 14 17 25 16 see PCM 16 see PCM 16 see PCM 11 15 17 19 15 17 22 26 31 IDLE IDLE IDLE Example2 PAYLOAD 1014 PCM Mode 31 BASERATE 26 TSO Source Ei Timeslots exchange table C side xDSL interface G 703 interface N side xDSL interface 0 to CP from N side 0 to E1 see CRC4GEN 0 to CO from E1 0 to N side from DSL
43. e alarm signalization 6 2 LEDs The four LTU LEDs 1 local status channel 1 2 remote status channel 1 3 local status channel 2 and 4 remote status channel 2 and the two NTU LEDs far end FE status and near end NE status are used to display normal operation condition and alarm condition Each LED can be green amber or red when lit according to the following table Some NTU models and repeaters have third LED for power representation ADD DROP repeater has NE and FE LEDs which represents normal operation condition and alarm condition NE LED is responsible for local status of N side and E1 interfaces while FE LED is responsible for local status of C side interface 6 2 1 Status LEDs LTU NTU except Multipoint Mode Remote FE LED Majoralarmlocal Pe i don t care S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 31 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Status LEDs LTU NTU Multipoint Mode Remote FE LED Normal operation local Normal operation remote Don t care major alarm local Minor alarm remote or one channel major alarm remote 6 2 2 Status LEDs ADD_DROP Repeater Local NE LED _ Remote FE LED off LTU Power failure off Hardware Software failure Blinking Normal operation of E1 or N side Green dont care xDSL Normal operation of C side xDSL Minor a
44. e mismatch in the xDSL line transformer All data of the user interface is looped back according the UIF and its settings An Analog Loop Back causes a non urgent alarm Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 29 of 83 WEB http www s access ch 5 PERFORMANCE MONITORING G SHDSL LTU NTU_Repeater_V1 66 The transmission performance of a xDSL link can be monitored in two different ways The xDSL signal quality is typically used during installation and maintenance procedures whereas the G 826 error performance parameters are intended to be used for long term evaluation of operating xDSL links Refer also to the SQ and G826 monitor commands described in the AccessDSL Monitor section 5 1 G 826 Performance Monitoring The G 826 error performance parameters provide quantitative performance information of a specific loop They are intended to be used for long term evaluation of operating xDSL links The evaluation of the G 826 error performance parameters is based on CRC Cyclic Redundancy Check error detection Slave Master CRC4 CRC6 CRC6 CRC4 TX RX E1 T826 xDSL E1 Channel valuation TX Figure 5 1 G 826 Performance Evaluation CRC generation and detection on the LTU NTU are handled separately for the E1 side and the xDSL side while on the ADD DROP Repeater CRC generation and detection on are handled separately
45. e single VT100 configuration port placed on a front or rear panel of the subrack Minirack stand alone units and repeaters can be reached from LTU side via DSL links Remote subracks can be reached via any 2Mbps TDM network using one 64k TS for management information For such application AccessGain 4XE module in subrack is necessary SNMP network management is provided with CMU module also installable into the subrack Standard MIB file can be used for integration into any existing Management Platform Complete Management solutions based on HP OpenView or CastleRock platforms are available on request Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 11 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 AccessDSL PAM New Generation modems mechanics and power environmental conditions All AccessDSL PAM modems are available in plug in minirack or stand alone versions Repeaters are available in stand alone IP67 and underground mountable fully isolated stainless steel versions All the modules as well as subrack can be powered from CO batteries with 48 60VDC Miniracks and stand alone modules can be also powered from 220VAC via power adapter for stand alone version NTUs and repeaters can be also powered remotely via DSL line from LTU All the modems and repeaters are produced according to the standards for indoor use Repeaters can
46. e three line coding options It is new Conexant based 1 pair 2B1Q technique AccessDSL MDSL advanced in terms of distance Globespan CAP technology AccessDSL MSDSL and the newest ITU standardized and most spectral friendly TC PAM coding AccessDSL PAM Any modem of the AccessDSL series can be delivered in three types of mechanics designed to meet CO campus and SOHO needs It is subrack plug in card version for installation into universal 19 6U AccessGain subrack minirack version 19 1U for direct installation into 19 rack or stand alone version for desk top use For transmission distance increasing of AccessDSL PAM series repeaters Signal Regenerator Units SRU are available These units can be delivered in three types of mechanical design stand alone version for desk top use IP67 design for installation into outdoor cabinet and underground mountable fully isolated stainless steel design The AccessDSL PAM New Generation modems technology AccessDSL PAM New Generation is based on the latest developed DSL line technology TC PAM TC PAM was designed to provide both superior distance and full electro magnetic spectral compatibility with other DSL services running in one cable TC PAM is laid into the base of ANSI HDSL2 as well as ETSI SDSL standards It is going to be also the first international ITU G shdsl standard for symmetrical 1 pair high speed data transmission over existing copper pair Access GmbH Tel 41 44 700 3111 Oberhau
47. e virtual terminal connection to the remote unit S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 46 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 3 Performance management PM Performance management activated Enter lt M gt to return to MAIN or lt H gt for HELP information Type lt H gt and the monitor lists all available commands in the performance sub menu 9 3 3 1 G826 Command The G826 command displays the ITU T G 826 error performance on xDSL line side CO_0O1_PM gt G826 G 826 Error Performance CRC6 FEBE Errored blocks 00000000 00000000 Errored seconds 00000000 00000000 Severely errored seconds 00000000 00000000 Background block errors 00000000 00000000 Available time 00624483 00624483 Unavailable time 00000024 00000024 CO_01_PM gt Option C Updates the G 826 parameters continuously Definitions 1 CRC6 Cyclic redundancy check indicating errored blocks received on the local xDSL side 2 FEBE Far end block error indicating errored blocks received on the remote xDSL side 3 Errored block EB A block in witch one or more bits are in error 4 Errored seconds ES A one second period with one or more errored blocks SES defined below is a subset of ES 5 Severely errored second SES A one second period which contains gt 30 errored blocks 6 Backgro
48. ed re allocate memory file C Dokumente und Einstellungen JNG Eigene Dateien 2 Acceaah Tech Produkt e Flashloader Pam_STU_Flash_2500C_4W_3RU_XMP1 aas COM1 connected Erasing Application ignore lt Start Request gt Start Request gt received re allocate memory read 696262 bytes from file OK message from remote device Flash Loader Download successfully terminated La 12 If the download was successful the LTU NTU restarts automatically S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 69 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 70 of 83 WEB http www s access ch 11 CONNECTORS DESCRIPTION G SHDSL LTU NTU_Repeater_V1 66 11 1 xDSL Connector SA PAM SRL E1B N64 and SA PAM SR2L E1B Pin Signal Description 1 TXB a_ 4 wire Tx Loop B Tip Front View 2 TXB b 4 wire Tx Loop B Ring RJ45 8 3 TXA a_ 4 wire Tx Loop A Tip 4 LA a_ Loop A Tip 4 wire Rx Loop A Tip 5 LA b Loop A Ring 4 wire Rx Loop A Ring 6 TXA b 4 wire Tx Loop A Ring 7 LB a_ Loop B Tip 4 wire Rx Loop B Tip 8 LB b Loop B Ring 4 wire Rx Loop B Ring 11 2
49. erhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 3 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Status LEDs LTU NTU Multipoint Model 32 6 2 2 Status LEDS ADD DROP Pepeafet eugssbuuesgrer kger aer Sege suaeesssuctoxucvssunssnevaciwesvs 32 6 2 3 EE 33 e GREEN 33 6 2 3 2 Remote PE VED reckt a aaea Raai 33 60 3 ALARM RELAYS LTU siccrssssertnaudonrneanenreruntahue scars ennaa eae dE 34 6 3 1 Implementation eebe EE eege 34 6 3 2 Relay Alarm Conditions EE 34 6 4 ALARM RELAYS NTU AND REPEATER ceceeceeeeeeeeeeeeeeeeeeeeeeeaeeeeeetaaaeeeeesaaeeeeennaeeeenee 34 6 4 1 Jee EE 34 6 4 2 Relay Alarm COON Sosa aaa cette eee desea 34 7 ETUPOWER CONCEPT isicsciencesiceecesccnaticnccaaecatee ark doaa raaraa aaan saaa taaak anada aaia anadi ndadar iaunari 35 7 1 POWER MODES GA DAM GR EIRBMPDRP 35 74 1 Wetting c rrent SOUCO esenee E E E EREE 35 7 1 2 Wetting current EES 35 1 3 2X1T00V ee 35 K E IX200V ee EE 35 Toda AP el 36 7 1 6 Remote gl 37 S amp S NTU POWER GONGERT sesssguuesseesasbegtssugeseeruSreesseeeeE EE aaa aaan ai aasan iaaa a andai 39 9 MONITOR sssi cscs cata ce cease cence ceases tcenstecce saaan ae raene naana aiaa aaae aa Anak aiia anian annaa iE RaaEi 40 91 e E 40 9 2 MONITOR INTERFACE E 40 9 3 STRUCTURE amp ORGANIZATION ierkigeteget re gar sbedeh denke eg b e eEEERgOEES AE eeb degkeet 41 9 3 1 Main EE 45 9 3 2 Common COMA E 46 9 3
50. for the E1 side and both xDSL sides On the E1 side four CRC4 check bits are generated per sub multiframe SMF and compared with the corresponding CRC4 bits in the following SMF If they do not match the CRC4 error counter is incremented The opposite station is informed of detected CRC4 errors by setting E bits in the transmitted frames At the same time the E Bits from the opposite station are counted and can be used for performance monitoring Similarly on the xDSL side six CRC6 check bits are generated per xDSL frame for each channel and direction For signaling detected block errors in the return direction the FEBE bits are used The HDSL G 826 performance of the opposite unit is calculated according to these FEBE bits CRC6 errors are used by software to count the block errors of the respective xDSL channel and to evaluate its error performance according to ITU T Rec G 826 For the E1 interface calculations according to G 826 are only possible in the framed mode with CRC4 option enabled In framed mode with CRC4 option disabled only FAS errors are detected The estimation of a bit error rate is not within the scope of the G 826 calculations Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 30 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 6 ALARMS 6 1 General This chapter describes a possible implementation for th
51. il contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 CO_CM gt DEFAULT 2 Local Configuration 2 Mbit s Framing CRC4 Detection CRC4 Generation E Bit Insertion AIS Detection AIS Generation External Clock Nx64 Service Nx64 only Interface Type V39 Bitrate 2048 kbit s Clock Mode internal Clock Direction contradirectional Clock Edge inverted Use Timeslot 0 yes V 54 Loops disabled xDSL ode Normal aster Slave Master PLL off Autorestart on Base Rate 32 Rate Adaption off S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland WEB http www s access ch Page 61 of 83 User Manual G SHDSL LTU NTU_Repeater_V1 66 9 3 5 29 3fE1 amp Nx64 Normal or Dual Pair mode CO_CM gt DEFAULT 0 Local Configuration 2 Mbit s Framing CRC4 Detection CRC4 Generation E Bit Insertion AIS Detection AIS Generation External Clock Nx64 Service Interface Type Bitrate Clock Mode Clock Direction Clock Edge Use Timeslot 0 V 54 Loops xDSL ode aster Slave PLL Autorestart Base Rate Rate Adaption ITU T G 704 on on on on on off Nx64 amp fEl V35 256 kbit s from El contradirectional inverted disabled Normal Master off on 32 off CO_CM gt DEFAULT 1 Local Configuration 2 Mbit s Framing CRC4 Detection CRC4 Genera
52. in Connector Figure 2 1 Subrack Front Panel E1 120 S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 13 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 1 Tricolour LED for local status channel 1 2 Tricolour LED for remote status channel 1 3 Tricolour LED for local status channel 2 4 Tricolour LED for remote status channel 2 5 Tricolour LED for extension card status 1 6 Tricolour LED for extension card status 2 N64 Sub D25 female Connector E1 75 Q BNC Connectors xDSL RJ 45 8 pin Connector Figure 2 2 Subrack Front Panel E1 75 Q S Access GmbH Tel 41 44 7003111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 14 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 1 Tricolour LED for local status channel 1 2 Tricolour LED for remote status channel 1 3 Tricolour LED for local status channel 2 4 Tricolour LED for remote status channel 2 E1 75 Q BNC Connectors xDSL RJ 45 8 pin Connector Figure 2 3 Dual Subrack Front Panel E1 75 O S Access GmbH Tel 41 44 7003111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 15 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44
53. l 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 36 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Jumpers Position Feature J1101 closed __ Wetting current source for xDSL A enabled J1102 closed __ Wetting current source for xDSL B enabled J1103 closed __ Wetting current receipt for xDSL A enabled J1104 closed __ Wetting current receipt for xDSL B enabled J1105 closed Remote power source for xDSL A enabled J1106 closed Remote power source for xDSL B enabled J1107 closed 115 Vdc J1108 closed 200 Vdc Important Notes 1 Only one of J1107 and J1108 can be closed 2 Only one of J1101 J1103 and J1105 can be closed 3 Only one of J1102 J1104 and J1106 can be closed 7 1 6 Remote power concept Remote Feeding mode has the following characteristics Cross wiring tolerant Power feeding voltage within TNV Limits max lt 120 Vpc current limiters microcontroller controlled Tolerant against microinterruptions Automatic system restart after power failure Protection according to ITU T Rec K 20 The state machine of the current limit detector CL including timing is shown in the following diagram S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Init State 100 ms Start up Statq 500ms Over current detected N OK State 100 ms Over curre
54. larm of E1 or N side xDSL Minor alarm of C side xDSL Major alarm of E1 or N side xDSL Red don t care Major alarm of C side xDSL S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 32 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 6 2 3 Local LED Alarm Conditions 6 2 3 1 Local NE LED An alarm condition is displayed with the Local LED if one of the following conditions occurs Major alarm red e Hardware or software failure blinking e loss of signal frame alignment on the xDSL side e xDSL block error rate according G 826 gt 30 BER H e E1 block error rate according G 826 gt 30 BER S Minor alarm amber loss of signal on the E1 side LOS S loss of frame alignment on the E1 side LFA S Segment defect alarm SEGD receiving AIS on E1 side AIS S either Loop 1 Loop 2 is activated Analog Loopback is activated Spectrum Transmission activated Displaying a major alarm has a higher priority than displaying a minor one i e an amber alarm will be overwritten by a red alarm 6 2 3 2 Remote FE LED The remote LED is an image of the local LED of the remote station see previous LED table for exceptions S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 33 of 83 WEB http www s access ch
55. later The operating modes for the NTU and Repeater are configurable via the V 24 monitor interface on the rear panel as well as from remote LTU or NTU via DSL in case of establishing of the link NTU and Repeater have to be configured for local or remote power switch placed on the rear panel 4 1 xDSL The following two configuration options refer to the xDSL side only and do not affect the E1 and Nx64 interface operating mode 4 1 1 Master Slave To start up an xDSL link one system unit must be configured as master and the other one as slave as the link start up procedure is controlled by the slave If both system units are configured as master or both as slave no start up will occur Normally the LTU is configured as master default setting In addition it is also possible to set up an xDSL link with two LTUs given that one is configured as master and the other one as slave In an LTU LTU connection at least one of the units must be configured as master It should be noted that if a xDSL link is set up with two LTUs the External Clock option is possible on only one subrack side Also no wetting current is possible in an LTU LTU connection The Master Slave option also affects the EOC related functions Generally the master slave rights are e The master unit has local access as well as access to the slave unit Only the master slave and the autorestart configuration cannot be altered by the master unit over the xDSL
56. lus 2 Thus the repeater nearest to CO side has address 03 second one 04 etc S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 41 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 LTU NTU command set tree for Normal and Dual modes Main Menu Performance Fault and Maintenance Configuration G826 SQ CONFIG G826 C STARTUP G704 G826 E1 STATUS CRC4DET G826 E1 C ALARM CRC4GEN RESETG826 ALARM T EBIT LOOP1 AISGEN LOOP2 AISDET STARTAL EXTCLK RESTART SERVICE RESET TYPE SPECTRUM BITRATE CLOCKMODE CLOCKDIR SLOTUSAGE AUTOLOOP MODE MASTER PLL POWER ID AUTORESTART BASERATE DEFAULT ADAPTIVE Figure 9 1 LTU NTU Monitor Command Set Tree Normal Dual Pair Modes S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 42 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 User Manual LTU NTU command set tree for Multipoint mode Main Menu Performance Fault and Maintenance Configuration G826 SQ CONFIG G826 C STARTUP CRC4DET G826 E1 STATUS CRC4GEN G826 E1 C ALARM EBIT RESETG826 ALARM T AISGEN LOOP 1 AISDET LOOP2 EXTCLK STARTAL IDLECAS RESTART PCM RESET PAYLOAD SPECTRUM MODE
57. nal timing reference LOS LFA H Loss of signal or frame alignment at xDSL loop SEGD Segment Defect indication BER H xDSL block error rate according G 826 gt 30 LOOP 1 xDSL test loop 1 active see section LOOP2 xDSL test loop 2 active ALB Analog loopback TEST At least one test function is active Note Repeater and units in Multipoint and Dual Pair modes represent data for both xDSL interfaces Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 51 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 4 5 LOOP1 Command The LOOP1 command starts the local loopback see section 4 6 1 Standard Test Loops CO_01_FMM gt LOOP1 ON Loop 1 activated CO_01_FMM gt CO OI EMMG LOOP1 OFF Loop 1 deactivated CO_01_FMM gt 9 3 4 6 LOOP2 Command The LOOP2 command starts the remote loopback see section 4 6 1 Standard Test Loops CO_01_FMM gt LOOP2 R ON remote loop activation initiated CO_01_FMM gt CO_0O1_FMM gt LOOP2 R OFF remote loop deactivation initiated Note The remote loopback is only possible from the master side Note In Multipoint mode LOOP2 command has additional parameter which assign necessary xDSL interface Note On ADD DROP repeater LOOP2 can be activated locally In this case LOOP2 command has parameter ON or OFF only 9 3 4 7 STARTAL Command The STARTAL command starts the analog loopb
58. nctionality AccessDSL PAM multiservice modules simultaneously support both interfaces G 703 704 and N 64 V 35 36 X 21 providing full multiplexing and cross connect capability For example customer can distribute single G 703 2Mbps stream from CO side into separate FE1 G 704 and N 64 flows on NTU side for PBX and Router connection Multipoint modules provide multiplexing between G 703 G 704 interface and two xDSL loops including full processing of channel associated signaling CAS bits if it is necessary This functionality allows splitting single G 703 2Mbps stream from CO side in two separate flows and transmitting toward different NTU sides AccessDSL PAM series also includes repeater for extension of data transmission length AccessDSL PAM repeaters also support add drop functionality of 64kbps time slots of E1 stream that allows extract a part of time slots of E1 stream via G 703 G 704 interface at the regenerator points AccessDSL PAM New Generation modems test and management AccessDSL PAM New Generation modems and repeaters have full set of performance diagnostics and self test options All the configurations can be made from the local VT100 emulating terminal or remotely via DSL link or Centralized Network Management System Ethernet interfaced modems oriented for LAN and Internet use can be remotely configured through the network via unique IP address of each device TDM G 703 and N 64 based plug in units can be configured from th
59. nd Set usage of timeslot 0 for Nx64 only mode on off 9 3 5 16 AUTOLOOP Command This command enables disables the usage of lines 140 141 for automatic V 54 loop control Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 55 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 5 17 MODE Command This command sets the operation mode N Normal mode D Dual pair mode M Multipoint mode T E1 TS16 mode for SW versions before 1 6 5 4 9 3 5 18 MASTER Command Set xDSL master slave mode One unit must be configured as master the other as slave 9 3 5 19 PLL Command This command enables disables the PLL on channel A of xDSL port 9 3 5 20 ID Command This command sets a unique identification string printed on the main screen 9 3 5 21 AUTORESTART Command Set autorestart on off 9 3 5 22 BASERATE Command This command sets the base rate for xDSL interface This value must be between 3 and 32 and defines the available 64 kbit s channels To optimize the bandwidth of your connection you have to set the base rate value to the maximum where you get a stable connection Note In Multipoint mode BASERATE command has two parameters for each xDSL interface Note In Repeater ADD DROP monitor BASERATE sets the base rate for C side xDSL interface 9 3 5 23 PCM Command This command enables disables timeslot 16 processing 30
60. nt detected Y The time stipulated in the different states indicates how long the state machine remains in the state before leaving it automatically Power up command Figure 7 2 Current Limiter state machine Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch Page 37 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 The internal sampling rate for the CLDET Signal is 10ms The result is integrated with a slope factor of 4 for the event of CLDET active and deintegrated with a slope factor of 1 for the event CLDET inactive The result of the integrator is checked every 100 ms The remote power feeding is under firmware control and can therefore be controlled by the monitor Wetting current SA PAM SRL E1B N64 and SA PAM SR2L E1B The position of the jumpers is described in the following figure LTU Board T521 T601 T621 X7 73 21 X731 HDSL von ENEE C548 C628 C648 Figure 7 3 LTU Wetting current jumper locations The eight Jumpers X701 X731 on the LTU are to select the wetting current feature The feature is enabled when the jumpers are closed Jumpers Position Feature X701 closed Wetting current for RXA TXA enabled X711 closed Wetting current for TXA enabled X721 closed Wetting current
61. o a terminal or a PC with terminal emulation in order to monitor relevant events and to display additional information such as the signal quality of the xDSL link or the G 826 error performance parameters In addition full system configuration and fault localization can be done over the monitor interface The terminal for monitoring should be VT100 compatible and configured as follows e 9600 baud asynchronous e 8 bits no parity one stop bit e no newline on carriage return i e no line feed on carriage return 9 2 Monitor Interface There is a point multipoint TTL bus 9600 baud on the subrack s backplane The TTL to RS232 level conversion is done on the backplane where the RS232 converter and the monitor connector are located At any time only one of the LTUs in the subrack can be logically connected to the monitor interface The appropriate LTU is selected according its physical position in the subrack starting with the leftmost slot number 01 and ascending rightwards to number 14 To select the LTU in slot number SN just type lt SN gt at the terminal even in the case it does not show any prompt e g to select the LTU in slot 01 type 01 To access the second channel on a dual LTU add 20 twenty to the slot number or access it over the main menu screen of the first channel To see which units in a rack are available you can use the lt ECHO gt command Each present unit will respond with its associated slot number
62. oad 21 10 xDSL Autorestart on on Base Rate 32 Rate Adaption off CO_CM gt DEFAULT 1 Local Configuration A B 2 Mbit s Framing CRC4 Detection CRC4 Generation E Bit Insertion AIS Detection AIS Generation TSOSRC PCM Mode Idle CAS Payload xDSL Autorestart Base Rate Rate Adaption S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland ITU T G 704 On On On On On C side xDSL PCM30 OxD 20 10 on on 32 off Page 65 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 10 SOFTWARE UPDATE 10 1 General The software of the AccessDSL boards has the possibility for field updates To do a field update you need only a Windows 95 98 NT computer the Flash Loader program installed a connection between the Windows computer and the LTU NTU Monitor connector and the newest release of the AccessDSL software 10 2 Software download To update the software on your LTU NTU you have to run through the following steps 1 Switch off the power of your LTU NTU 2 Connect the LTU NTU monitor connector with your Windows computer s RS232 interface 3 Start the Flash Loader software on your Windows computer 4 Choose Set Loader Communication in the menu Setting Select the right communication port the communication information and press Ok Flash Loader DER Action Rep Help Select Device Set
63. ocal 2Mbit s E1 side 2 E bit CRC 4 indication bit indicating received errored sub multiframes on the 2Mbit s E1 remote side 3 FAS Errored Frame Alignment Signal received on the 2Mbit s E1 side The criteria for severely errored seconds SES is 28 FAS Errors per second In accordance to G 821 9 3 3 3 RESETG826 Command The RESET G826 command sets the G 826 error performance parameters back to zero CO_01_PM gt RESETG826 G 826 error performance parameter reset CO_01_PM gt S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 48 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 4 Fault and maintenance management FMM Fault and maintenance management activated Enter lt M gt to return to MAIN or lt H gt for HELP information Type lt H gt and the monitor lists all available commands in the fault and maintenance sub menu 9 3 4 1 SQ Command The SQ command allows the user to toggle the signal quality trace on and off CO_01_FMM gt SQ signal quality trace on xDSL SNR local 38 8 dB remote 39 0 dB xDSL SNR local 41 3 dB remote 38 8 dB xDSL SNR local 38 6 dB remote 39 0 dB CO OI EMMG SQ signal quality trace off CO_01_FMM gt Note Repeater and units in Multipoint and Dual Pair modes represent data for both xDSL interfaces 9 3 4 2 STARTUP Command The STARTUP command all
64. ommand Select one of four available services E E1 only N Nx64 only M Multiservice Nx64 amp fE1 fractional E1 T E1 TS16 mode For SW versions starting from 1 6 5 4 9 3 5 10 TYPE Command This command sets the Nx64 interface type 0 V 35 1 V 36 X 21 without termination 2 V 36 X 21 with termination 9 3 5 11 BITRATE Command Set Nx64 payload bit rate to 1 32 x 64 kBit s In Nx64 only mode the timeslot mapping is from 0 to 31 if SLOTUSAGE ON configured or from 1 to 31 if SLOTUSAGE OFF configured In multiservice mode the timeslot mapping is from 1 to 15 17 to 31 The remaining timeslots are available for fE1 If payload bit rate is 31 x 64 kBit s TS16 is used If payload bit rate is 32 x 64 kBit s then TSO is used too 9 3 5 12 CLOCKMODE Command Nx64 only Set Nx64 unit clock mode to external i e the internal PLL of the modem DCE is enabled or internal i e the modem DCE is clock master and the PLL is disabled internal clock mode is not applicable when the unit is configured as xDSL slave E1 only or multiservice The Nx64 clock is derived from the E1 port 9 3 5 13 CLOCKDIR Command Set Nx64 port clock direction to codirectional or contradirectional Codirectional uses input line 113 for TXD sampling contradirectional uses output line 114 for TXD sampling 9 3 5 14 CLOCKEGDE Command Set Nx64 TXD data sampled at normal or inverted clock edge 9 3 5 15 SLOTUSAGE Comma
65. onded to earth This is usually achieved by installing the subrack into a rack which is connected to the earth network according to ETS 300 253 An extra earth terminal is not provided S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 8 of 83 WEB http www s access ch 1 THE ACCESSDSL FAMILY G SHDSL LTU NTU_Repeater_V1 66 The Universal Access Platform AccessGain DSL FTTB DPGS TDM X Connect SDH Why should have it all in different packages If you ask yourself this very common nowadays question you are probably the most welcomed customer for our Universal Access Platform AccessGain AccessGain combines in a single platform many popular and needed access solutions AccessDSL Full range of symmetrical DSL modems AccessGain PCM Full range of Digital Pair Gain Systems AccessGain FOM4 Fiber optic solution for the Local Loop AccessGain Plex TDM multiplexer to combine voice and data AccessGain 4XE X connect module serving 4 E1 streams AccessGain A T155 SDH add drop STM 1 multiplexer The AccessDSL series of symmetrical DSL modems AccessDSL is a wide range of DSL modems targeted to meet both typical carrier applications and access network needs AccessDSL is a really Accessible DSL solution Depending on your country or PTT requirements as well as your own technology preference you may choose within AccessDSL series one of th
66. onfiguration A B 2 Mbit s Framing ITU T G 704 CRC4 Detection on CRC4 Generation on E Bit Insertion on AIS Detection on AIS Generation on External Clock off PCM Mode PCM31 Payload 16 ila xDSL ode Multipoint aster Slave Master PLL oft Autorestart on on Base Rate 17 16 Rate Adaption off off CO_CM gt DEFAULT 1 Local Configuration A B 2 Mbit s Framing CRC4 Detection CRC4 Generation E Bit Insertion AIS Detection AIS Generation External Clock PCM Mode Idle pattern Payload xDSL ode aster Slave PLL Autorestart Base Rate Rate Adaption ITU T G 704 on on on on on off PCM30 OxD Ee 15 Multipoint Master off on on 17 17 OFE off CO CMS S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 64 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 9 3 5 29 5 Add Drop Repeater CO_CM gt DEFAULT 0 Local Configuration 2 Mbit s Framing CRC4 Detection CRC4 Generation E Bit Insertion AIS Detection AIS Generation TSOSRC C side xDSL PCM Mode PCM31 Payload 31 0 xDSL Autorestart on on Base Rate 32 Rate Adaption off CO_CM gt DEFAULT 1 Local Configuration A B 2 Mbit s Framing ITU T G 704 CRC4 Detection On CRC4 Generation On E Bit Insertion On AIS Detection On AIS Generation On TSOSRC C side xDSL PCM Mode PCM31 Payl
67. or Dual Pair mode CO_CM gt DEFAULT 0 Local Configuration 2 Mbit s Framing CRC4 Detection CRC4 Generation E Bit Insertion AIS Detection AIS Generation External Clock Nx64 Service Interface Type Bitrate Clock Clock Direction Clock Edge Use Timeslot 0 V 54 Loops xDSL ode aster Slave Power PLL Autorestart Base Rate Rate Adaption ode S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Transparent Normal Master Ort off on 32 off Page 58 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 CO_CM gt DEFAULT 1 Local Configuration 2 Mbit s Framing ITU T G 704 CRC4 Detection on CRC4 Generation off E Bit Insertion o5 AIS Detection on AIS Generation on External Clock off Nx64 Service El only Interface Typ Bitrate ss Clock Mode a Clock Direction Clock Edge Use Timeslot 0 V 54 Loops xDSL ode Normal aster Slave Master Power off PLL off Autorestart on Base Rate 32 Rate Adaption OFF CO_CM gt DEFAULT 2 Local Configuration 2 Mbit s Framing ITU T G 704 CRC4 Detection on CRC4 Generation on E Bit Insertion on AIS Detection on AIS Generation on External Clock off Nx64 Service El only Interface Typ Bitrate s Clock Mode a Clock Direction Clock Edge S Use Timeslot 0 ES V 54
68. or fixed rate mode In fixed rate mode the system will start up the link according base rate setting In rate adaptation mode the system optimizes the bandwidth of the connection by adjusting the base rate value to the maximum where it is possible to get a stable connection 4 1 3 Normal Dual pair mode Units with two xDSL interfaces can operate in 2 wire Normal or 4 wire Dual Pair mode according to ITU T G 992 1 To start up an xDSL link both system units must be set to the same mode Rate adaptation does not supported in Dual Pair Mode so in this mode both system units must be set to the same base rate 4 2 1 Interface 2 Mbit s G 703 G 704 The following configuration options refer to the E1 side only and do not affect the xDSL operating mode 4 2 1 Framing 4 2 1 1 Transparent Mode In the transparent mode the E1 data will be transmitted without any changes whereas in the framed mode the frame multiframe alignment words and eventually the CRC4 bits are searched for by the E1 framer The CRC4DET and CRC4GEN option is not relevant in the transparent mode Transparent mode does not supported in Multiservice mode and for ADD DROP Repeaters 4 2 1 2 Framed Mode ITU T G 704 In the framed mode framing according to ITU T Rec G 704 the incoming E1 data stream passes through an E1 framer before entering the xDSL section On the other side the E1 data stream received from the xDSL section first passes through the E
69. ows the user to toggle the startup trace on and off in order to observe the LTU NTU activation state diagram transitions conforming to ITU T G 991 2 CO_01_FMM gt STARTUP xDSL transceiver startup trace on CO DI EM CO_01_FMM gt STARTUP xDSL transceiver startup trace off CO DI EM Note Repeater and units in Multipoint and Dual Pair modes represent data for both xDSL interfaces S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 49 of 83 WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 9 3 4 3 STATUS Command The STATUS command displays the actual system status CO_01_FMM gt STATUS Local System Status LOSD 1 SEGA 1 PS a SEGD 1 Tx power 07 5 dBm Rx gain 13 4 9 dB Loop attn 00 0 dB Bitrate 2064 kBit s SRU 0 CO_01_FMM gt Definitions LOSD Loss of Signal Indicates the loss of signal from the application interface Loss of Signal 0 Normal 1 SEGA Segment Anomaly Indicates a CRC error on the incoming xDSL frame A segment anomaly indicates that a regenerator operating on a segment has received corrupted data and therefore the regenerated data is unreliable CRC Error 0 Normal 1 PS Power Status SEGD Segment Defect Tx power Local transmit power in dBm Rx gain Local receiver gain in dB Loop attn Estimate of the loop attenuation in
70. senstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 9 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 Giving to customer an option to choose any line speed from 72kbps to 2 3Mbps with 8kbps increments TC PAM offers more narrow power spectrum then other technologies like 2B1Q This way new technology allows longer distance transmission over copper pair as well as spectral compatibility with many other DSL services like ISDN ADSL and G lite dBm 40 PSD for Line peed of 768kbps 50 Gshds spa 281Q 60 N 70 4 80 4 90 100 110 lt N WI 120 0 100 200 300 Ki 400 500 600 700 800 900 1000 1100 kHz gt lt ADS ADS Upsteram Downstream With a fixed loop length TC PAM provides 35 45 higher data rate in comparison with traditional 2B1Q technique Having the data rate fixed TC PAM runs on 15 20 longer loops then 2B1Q Bos 2500 1 y sett G HPE CRN 1500 1000 KR N 500 1 5 2 1 20 3 3 3 9 4 5 5 1 5 7 6 3 Km Data are given for the worst case scenario BER10 7 wire 0 4 mm S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse
71. smit Power Number of Pairs Bit Rate Connector Type Overvoltage Protection Specification Wetting Current 12 1 2 E1 Line Interface Specification Number of Interfaces Line Code Impedance Jitter Bit Rate Connector Type ESD Protection ITU T G SHDSL Rec G 991 2 4 wire Interface separate Tx and Rx Pairs TC PAM 135 13 5 dBm 135 Q 1 or 2 option 2 or 4 192 to 2064 kbps RJ 45 8 pin ITU T Rec K 20 K 21 ITU T G SHDSL Rec G 991 2 2 4 mA 60 V ETS 300 166 ITU T Rec G 703 G 704 1or2 HDB3 either 120 or 75 ITU T Rec G 823 ETSI TS 101 135 2048 kbit s 50 ppm either DB15 male 120 or two BNC 75 8 kV Air discharge 12 1 3 V 35 DCE User Interface Specification Number of Interfaces Connector Type 12 1 4 Monitor Interface Specification Data Rate Protocol Signal Level Connector Type 12 2 Power Supply Specification Plug in Tabletop S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland ITU T Rec V 35 V 36 X 21 1 DB25 female EIA 232 V 28 9600 baud asynchronous 8 bit no parity 1 stop bit no linefeed with carriage return XON XOFF enabled V 28 on DB9 female connector DB9 female connector ETSI ETS 300 132 2 2 x 40V 60Vpc over backpanel redundant 1 x 40V 60Vpc over Molex type safety approved connector or 38 200Vdc over xDSL Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch Page 74 of 83 WEB http www s access ch
72. ta e A ALACOM Common Contact De 5 _ SGND EIA 232 Signal Ground De 6 ALMAJ_NC Major Alarm Contact normally closed S Oli 7 ALMAJ_NO Major Alarm Contact normally open 8 ALMIN_NC Minor Alarm Contact normally closed 9 ALMIN_NO Minor Alarm Contact normally open on NTU only S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 72 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 11 7 Power Interface SA PAM SAN E1B V1 and SA PAM SAN E1B N64 V1 Pin Signal Description 1 MainsPWR Negative power supply terminal for mains adapter 2 NC 3 BatPWR Negative terminal for battery power supply fused 4 PWR Positive power supply terminal 11 8 Power Interface Pin Signal Description 1 MainsPWR Negative power supply terminal for mains adapter 2 FPE Functional Protective Earth 3 NC 4 PWR Positive power supply terminal Molex Mini Fit 4 pin S Access GmbH Tel 41 44 70031 11 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 73 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 User Manual 12 TECHNICAL SPECIFICATION 12 1 Interfaces 12 1 1 xDSL Line Interface Specification Option Line Code Impedance Tran
73. tion E Bit Insertion AIS Detection AIS Generation External Clock Nx64 Service Interface Type Bitrate Clock Mode Clock Direction Clock Edge Use Timeslot 0 V 54 Loops xDSL ode aster Slave PLL Autorestart Base Rate Rate Adaption ITU T G 704 on on on on on off Nx64 amp fEl V35 512 kbit s from El contradirectional inverted disabled Normal Master off on 32 Ore S Access GmbH Oberhausenstrasse 47 8907 Wettswil a A Switzerland Page 62 of 83 Tel 41 44 700 31 11 Fax 41 44 700 31 13 Email contact s access ch WEB http www s access ch User Manual G SHDSL LTU NTU_Repeater_V1 66 CO_CM gt DEFAULT 2 Local Configuration 2 Mbit s Framing ITU T G 704 CRC4 Detection on CRC4 Generation on E Bit Insertion on AIS Detection on AIS Generation on External Clock off Nx64 Service Nx64 amp fEl Interface Type V 35 Bitrate 1024 kbit s Clock Mode from El Clock Direction contradirectional Clock Edge inverted Use Timeslot 0 e V 54 Loops disabled xDSL ode Normal aster Slave Master PLL oft Autorestart on Base Rate 32 Rate Adaption off S Access GmbH Tel 41 44 7003111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland WEB http www s access ch Page 63 of 83 User Manual G SHDSL LTU NTU_Repeater_V1 66 9 3 5 29 4 Multipoint Mode CO_CM gt DEFAULT 0 Local C
74. und block error BBE An errored block not occurring as part of an SES Note Repeater and units in Multipoint and Dual Pair modes represent data for both xDSL interfaces Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 47 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 3 2 G826 E1 Command The G826 E1 command displays the ITU T G 826 error performance parameters on the E1 2Mbit s side This command is only available if framed mode is enabled If CRC4 mode is on the following parameters are displayed CO_O1_PM gt G826 El G 826 Error Performance CRC4 E Bit Errored Blocks 00000000 00000000 Errored seconds 00000000 00000000 Severely errored seconds 00000000 00000000 Background block errors 00000000 00000000 Available time 00524129 00524129 Unavailable time 00000024 00000024 CO_01_PM gt If CRC4 detection mode is off the following parameters are displayed CO_O1_PM gt G826 El G 826 Error Performance FAS Errored blocks 00000000 Errored seconds 00000000 Severely errored seconds 00000000 Background block errors 00000000 Available time 00009841 Unavailable time 00000024 CO_01_PM gt Option C Updates the G 826 E1 parameters continuously Definitions 1 CRC4 Cyclic redundancy check indicating errored sub multiframes received on the l
75. will be restarted CO_01_FMM gt RESET system reset Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 53 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 5 Configuration management CM Configuration management activated Enter lt M gt to return to MAIN or lt H gt for HELP information Type lt H gt and the monitor lists all available commands in the configuration sub menu 9 3 5 1 CONFIG Command The CONFIG command displays the configuration of the unit Note After each configuration change the new configuration is automatically displayed 9 3 5 2 G704 Command Set framed mode transparent mode Note This command does not supported in Multipoint mode as well as in ADD DROP repeater monitor 9 3 5 3 CRC4DET Command Set CRC4 detection on off 9 3 5 4 CRC4GEN Command Set CRC4 generation on off 9 3 5 5 EBIT Command Set automatic E Bit insertion on off 9 3 5 6 AISGEN Command Set AIS generation on off 9 3 5 7 AISDET Command Set AIS detection on off 9 3 5 8 EXTCLK Command Set external clock mode on off Note This command exists for LTU only Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 54 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 9 3 5 9 SERVICE C
76. xDSL Connector Pin Signal Description 1 NC Not used Front View 2 Shield DSL cable shield RJ45 8 3 TXA a Loop B Tip C side 4 LA a Loop A Tip N side 5 LA b Loop A Ring N side 6 TXA b Loop B Ring C side 7 Shield DSL cable shield 8 NC Not used 11 3 E1 120 Ohm Connector Pin Signal Description 1 RXta E1 120Q Output 1 wire A 2 FPE Functional Protective Earth cable shield RX1 SH 3 TX1a E1 120Q Input 1 wire A O 4 FPE Functional Protective Earth cable shield TX1 Ze 5 FPE Functional Protective Earth cable shield TX2 Oo 6 RX2a E1 120Q Output 2 wire A O 7 FPE Functional Protective Earth cable shield RX2 0 8 TX2a E1 120Q Input 2 wire A SC 9 RX1b E1 120Q Output 1 wire B oo 10 NC O 11 TX1b E1 1209 Input 1 wire B 12 NG 13 TX2b E1 120Q Output 2 wire B 14 NG 15 RX2b E1 120Q Input 2 wire B S Access GmbH Tel 41 44 700 3111 Oberhausenstrasse 47 Fax 41 44 700 31 13 8907 Wettswil a A Email contact s access ch Switzerland Page 71 of 83 WEB http www s access ch G SHDSL LTU NTU_Repeater_V1 66 User Manual 11 4 E1 75 Ohm In Out Connectors Type BNC 75 Q Optionally equipped for E1 interface with 75 Q 11 5 V 35 DCE Connector Pin V 24 V 35 V

G:SHDSL LTU-NTU_Repeater_V1-66

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