7BM41_0E - Rohde & Schwarz
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1. E DP TTT E TEENA ame a MF Sh maa ij i aT AE Le l BRA ji L oe ee J mmja wel S b i akin ae x y j A i r sic r g Srm reiri i E y Products EFA with EFA Scan DVRM and DVMD with Realtime Monitor or Stream Explorer DVMD B1 LAN WAN Connection Of Instruments w th Serial Interface By Us ng a Terminal Server Remote control of test and measurement equipment with a serial interface is limited to PC s located in close proximity determined by the length of a typical serial cable connection Several feet Usage of a terminal server allows connecting through LAN or WAN networks thus controlling the instrument from further away even around the globe The terminal server interfaces between TCP IP protocol and the RS232 line This application describes set up of a popular terminal server from Black Box Corporation to remotely and conveniently control the instruments EFA with EFA Scan software and DVRM or DVMD with Realtime Monitor Stream Explorer software through a LAN or WAN network Subject to change Alexander K G Worner 06 03 7BM41_0E Contents 1 Overview LAN WAN Connection by using a Terminal Server 1 OWGINI OW eunes e E ecanadeoaiwen 2 Hard and Software Requirements ccccsccccceccececeesecesaeeeeseeeessaees 2 Hardware Requirements ccccccceccceeeceeeseeeeeeeeeeeseeeeeeseeeseeeneenes 2 Software Requirements cccceecccceececeeeeeeeeeceeaeceseee2. Administration Menu which is described on page 5 of this document Settings for Realtime Monitor DVRM or Measurement Decoder DVMD DVMD with its local operation and LCD OSD display capabilities allows modifications of the parameters baud rate parity and hand shake pace Using the menu items SETUP RS232 will access the required menu DVRM doesn t have any local operation capabilities So whichever baud rate is used has to be preset by using the Realtime Monitor software or Stream Explorer and a local RS232 connection None of the other parameters are fixed within the unit Consult the user s manual of the instrument to learn how to set up RS232 based remote control and choose Communications Settings from the Options menu to open the window shown in Fig 8 8 Rohde amp Schwarz 7BM41_0E LAN WAN Connection by using a Terminal Server Communication Settings Fa Fort CoM OF Baud Aate 115200 h Cancel Parity None Handshake RRTS CTS Help Status Fig 8 Serial interface parameters on DVRM The sample settings from Table 3 are recommended for the serial interface of DVRM and DVMD and assumed in the following mw Table 3 RS232 interface parameters for DVRM and DVMD The settings on the relevant port of the terminal server connected to the DVRM or DVMD have to be matching the individual instrument s settings To enter the menu use the item port in the Administration Menu
3. button allows for a quick communication test If everything was set properly and the EFA is connected to the terminal server at the port that was assigned the specified port number the unit s firmware will send a string back including the serial and model numbers as well as the firmware version Fig 10 TCP IP communication menu with EFA Scan Realtime Monitor and Stream Explorer DVMD B1 The Realtime Monitor software comes with all DVRMs or can be freely download from the Rohde amp Schwarz homepage at http www rohde schwarz com PRODUCTS TEST amp MEASUREMENT AUDIO VIDEO amp TV PRODUCTS DVRM DOWNLOAD button 10 Rohde amp Schwarz 6 Troubleshooting 7BM41_0E LAN WAN Connection by using a Terminal Server Stream Explorer with the product name DVMD B1 is a charged option to DVRM or DVMD that includes all the remote features of Realtime Monitor Furthermore it features additional in depth measurement capabilities like PCR jitter and table repetition rates To use either of the two MAMET ki x application software packages via any LAN WAN connection the target information within age the desktop or start menu shortcut of Target type Application windows has to be Target location MPEG2 Stream Explorer modified Click with the i Target rer 5E exe IP 192 168 177 201 PORT 9100 right mouse key on the ii fener en desktop icon or start menu item within the Runin separate mem
4. Windows 2000 7BM41_0E 4 Rohde amp Schwarz 7BM41_0E LAN WAN Connection by using a Terminal Server This range of addresses can be determined by the PC s own IP address and the network sub mask setting both of which are found in the Control Panel Network settings under Properties for the Internet Protocol TCP IP components Fig 2 shows sample settings of a PC under Microsoft Windows 2000 Only the last 8 bits may vary for the IP address of the server since the first six bytes are all set indicated by the three 255 s A potential IP address for the server may only be 192 168 177 x with x any number between 3 and 255 1 is gateway 2 is PC This process of assigning an IP address to the physical hardware Ethernet address and further directions are also described in the terminal server s owner manual section 2 3 Communicating via ARP and later with great detail Entering the Terminal Server s Set Up Protocol After that a telnet session can be started for communication with the terminal server Enter the command telnet into the Run window that is found in the Start menu Within the Telnet window an open rrr sss ttt uuu command will initiate Communication with the terminal server where the parameter of this command is the IP address previously assigned to the server s hardware address The full command with the sample settings from Fig 1 is open 192 168 177 2 The server will then res
5. good idea to contact the network administrator for clarification of basic network related issues especially if a WAN to another site is the intended way of communication Command Prompt C gt ping 192 168 177 261 Pinging 192 168 177 281 with 32 bytes of data Request timed out out out Request timed out Ping statistics for 192 168 177 281 Packets Sent 4 Received Lost 4 108 loss Approximate round trip times in milli seconds Minimum Bms Maximum Bms Average Bms G 0 OE i d Fig 12 Ping command with negative result When the ping command gives a positive result and the NET LED is flashing upon starting the software or communication with the device but the software still shows communication errors there may be errors related to the port or RS232 settings Port Assignments The port number assignments within the terminal server Fig 7 and 9 have to match the port number which is used by the application software package Fig 10 or 11 Correct port settings can be observed on the terminal server itself by the individual port LED flashing for a short period of time To verify the port settings on the terminal server open a telnet window by entering telnet rrr sss ttt uuu with the correct IP address into the Run window of the Start menu Press Return to confirm the TSERVER password command and enter set term ansi a
6. instead Realtime Monitor and Stream Explorer will always open their user interface regardless of a success in communicating with DVRM or DVMD If communication fails either software will display RS232 Error on a red background at the right end of the status bar which is located at the bottom of the user interface 11 Rohde amp Schwarz 7BM41_0E LAN WAN Connection by using a Terminal Server In case of a failed communication it is always useful to observe the control lights at the front panels of the terminal server and the instrument With correct addressing of the terminal server over LAN WAN the LED marked NET should be flashing a few times when either pressing the Test button with EFA Scan or starting the Realtime Monitor Stream Explorer software IP Network Link The Basic network link can be tested using the ping command in an MS DOS or Command Prompt window If the results are looking like in Fig 12 the PC is basically not able to communicate with the terminal server Potential reasons for not communicating at all can be wrong cable links crossed over RJ45 patch cables instead of regular ones or vice versa or incorrect settings Malfunctioning network settings can be one of the following IP address of the server is different than the one used within the software package address masks are set for the server to be outside the subnet or an incorrect gateway address In these situations it is also a
7. parameters affecting the Server box eg hosts table other terminals TERMINAL SERVERU 03 00 a CDi TSERUER Fig 4 Entering the terminal server s administration mode A list of menu items i e gateway host line to choose from will appear in a window titled Administration Menu In order to make any changes to the configuration a password has to be entered Move the cursor with the down key to the password parameter and press the Return key Enter the default password iolan into the empty field and press Return again The original list will reappear with four more items in it access change kill and reboot Move the cursor bar down in the list to the parameter server and press the Return key again The menu Server Configuration as depicted in Fig 5 will appear Set up of the Server s Network Parameters of Telnet 192 168 177 201 Oe Connect Edit Terminal Help Administrator REMOTE ADMIN Hame TSERVER Debug mode 8 IP address LERTAN J subnet mask 255 255 255 0 Ethernet address 00 8 08 d4 04 42 33 Ethernet interface AUTO Language English Identification Lock Disabled Password limit 5 CR to initiate ves SHAP encoding Disabled Boot host Boot diagnostics Enabled Boot file Init file MOTD file Domain name Name server NS Port oo WINS server You must reboot the Server if you change the IP address
8. writing both Realtime Monitor and Stream Explorer DVMD B1 will operate on any PC with Pentium 100 MHz processor and either one of the following operating systems Microsoft Windows NT 4 0 Windows 95 98 and 2000 EFA Scan will work under all these mentioned operating systems as well as with Windows ME and XE There is no limitation known for the usage of the terminal server regarding processors and operating systems 3 Connecting the Computer and the Instrument s 7BM41_0E LAN WAN Internet ULL l LLE LLL LLALA Bo OEE KEL or ca OD tae a ae Lar A same ara Fig 1 Connection diagram between computer and instruments The discussed terminal servers from Black Box have RJ45 plugs for the serial interfaces requiring RJ45 CAT5 patch cables to be used with a DB9 adapter All of these items can conveniently be ordered from the same supplier Order numbers are listed in section 8 at the end of the document 3 Rohde amp Schwarz LAN WAN Connection by using a Terminal Server The other ends of the cables have to be terminated by a female DB9 to RJ45 adapter kit in order to plug it into the male DB9 connectors at the rear panel of the instruments Black Box manufactures those kits that allow customized connection of the individual wires easily through color coding The connections from the following Table 1 have proven working with EFA DVRM and DVMD eels e e 7 we e lefafs i e
9. 22 green 23 red 24 yellow 25 beige 26 pink 27 black ddd 001 003 006 010 015 020 025 030 050 100 length in feet 13 Rohde amp Schwarz LAN WAN Connection by using a Terminal Server ROHDE amp SCHWARZ ROHDE amp SCHWARZ Inc 8661 Robert Fulton Drive Suite A Columbia Maryland USA 21046 Telephone 1 410 910 7800 Fax 1 410 910 7801 Internet http www rohde schwarz com This application note and the supplied programs may only be used subject to the conditions of use set forth in the download area of the Rohde amp Schwarz website 7BM41_0E 14 Rohde amp Schwarz
10. 8 177 201 Connect Edit Terminal Help x Administrator PORT SETUP MHENU REHMOTE ADMIN Hardware Flow ctrl Keys Speed fl Flow ctrl Hardware Hot e Intr Parity Even Input Flow Enabled Quit 6 Kill B Bit 8 Output Flow Enabled Del Sess G Stop 1 Echo Break Disabled IP Addresses Monitor DSR No SFC Hask Monitor DCD ves Dst User Options Access Name Keepalive No Access Remote Terminal type ansi Rlogin Telnet Telnet Authentication None TERH Debug options No 8 Hode Raw Video pages 8 Hap CR to CR LF No Jj Connection None CLI Henu Menu Hex data No Host Reset Term Ho Secure No Remote Port 8 MOTD No Local Port 9008 TERMINAL SERVERU 03 00 a CDi TSERVER Fig 7 Serial interface parameters on the terminal server for EFA Of further importance are also the parameters Access and Local Port Access has to be set to Remote The port number entered in this menu 9000 in the shown example has to be used in conjunction with the IP address throughout the application software for addressing of all communication The sample settings shown in Fig 7 are matching the EFA s serial interface setting from Fig 6 as well as the setting within the EFA Scan software from Fig 10 If none of the parameters can be modified within the Port Setup Menu the password iolan has not been entered yet in the
11. IP addresses should be unique network wide TERMINAL SERVERU4 03 00 a CDi TSERVER Fig 5 Modifying the terminal server s network configuration Here a permanent assignment of the IP address that was chosen at the beginning of this section should be set The subnet mask must match the 7BM41_0E 6 Rohde amp Schwarz 7BM41_0E LAN WAN Connection by using a Terminal Server computer s subnet mask from Fig 2 Enter the values in the relevant field after moving the curser bar up or down Use the Return key twice to terminate the entry and save the edited settings To cancel any changes while editing a field press the Return key and then choose Quit amp Exit from the pop up menu with the cursor down key followed by the Return key After modification of the IP address the server has to be rebooted Choose the list item reboot from the Administration Menu and press the Return key followed by the space bar After the telnet program displays Connection to host lost start all over again by entering open rrr sss ttt uuu and follow directions given in sub section Entering the Terminal Servers Set up Protocol Following that the individual port settings have to be adjusted according to the instruments used The Ethernet address field in the Server Configuration menu must not be modified Settings for TV Test Receiver EFA These sample settings are recommended for the serial interface of EFA and a
12. Realtime Monitor and Stream Explorer and the instruments in section 5 are usually valid no matter which terminal server is used Software Requirements The application software used for remote control through a terminal server needs to have a method of sending and receiving the instruments commands directly to and from an Ethernet port with a given TCP IP address and a port number instead of the local RS232 port All three software packages discussed in this application note Realtime Monitor Stream Explorer DVMD B1 and EFA Scan have that basic capability If the application software does not offer this direct addressing capability for example Pcx2disc exe separate server software is needed to emulate a local COM port by running as a background task In that case the application software will see the remote serial interfaces identical to local interfaces one of which can be chosen in the set up as the port of choice The server software then converts all remote commands to and from the application software into the TCP IP channel and communicates with the terminal server at the other end This application note does not describe the latter type of communication through a software server but rather the direct addressing of the terminal servers Ethernet TCP IP address by the application software As far as operating systems and versions are concerned the capabilities of the application software packages have to be observed At the time of
13. ant parameters to be set are Speed Parity data Bits Stop bit and Flow ctrl which all have to match the instrument s settings of DVRM or DVMD Of further importance are also the parameters Access and Local Port Access has to be set to Remote The port number entered in this menu 9100 in the shown example has to be used in conjunction with the IP address throughout the application software for addressing of all communication The sample settings shown in Fig 9 are matching the DVRM s or DVMD s serial interface setting from Fig 8 as well as the calling command within the Realtime Monitor or Stream Explorer DVMD B1 software shown in Fig 11 If none of the parameters can be modified within the Port Setup Menu the password iolan has not been entered yet in the Administration Menu which is described on page 5 of this document 5 Setting the Application Software 7BM41_0E EFA Scan Software This software provides easy access to facilitate remote control via LAN WAN Standard Remote Control Save Measurement Schedule connections Simply click on Options in the Tools menu choose route Route TCRAP TCP IP and enter the IP address of the terminal IP Address 192 168 177 201 server as set earlier Fig 5 an and the port number set up a for EFA Fig 7 The Test Test ROHDESSCHWARZ EFA 100007073 05 0
14. by moving the cursor bar to that item and pressing the Return key The number of the physical port for example between 1 and 4 on a 4 port server has to be entered in an empty field followed by the Return key The Port Setup Menu as shown in Fig 9 will appear on the screen o Telnet 192 168 177 201 iy x Connect Edit Terminal Help x Administrator PORT SETUP MEHU REHOTE ADHIH Hardware Flow ctrl Keys Speed REELE Flow ctrl Hardware Hot e Intr 0 Parity Hone Input Flow Enabled Quit 6 Kill Bit 8 Output Flow Enabled Del Sess 8 Stop 1 Echo Break Disabled IP Addresses Monitor DSR No SFC Hask Monitor DCD ves Dst User Options Access Name Keepalive No Access Remote Terminal type undef Rlogin Telnet Telnet Authentication None TERH Debug options No Hode Raw Video pages 8 Hap CR to CR LF No Connection Hone CLI Zenu Menu Hex data No Host Reset Term Ho Secure No Remote Port 8 HOTD No Local Port 9188 TERHIHAL SERVERU 03 00 a CDi TSERVER Fig 9 Serial interface parameters on the terminal server for DVRM DVMD 9 Rohde amp Schwarz LAN WAN Connection by using a Terminal Server To modify any parameter move the cursor bar over the item and press the Return key A little pop up menu gives the choice values to enter another menu with the allowed values for that specific parameter The most import
15. default Other important parameters are Mode should be raw and RLogin Telnet set to Telnet Non matching RS232 settings might be observed on an EFA also by watching it change into remote status but not returning into local mode Once the command sequence that EFA Scan is processing has been finished the LED marked REM indicating the remote status of the instrument is supposed to darken again If it stays active the RS232 parameters usually are not correct EFA Operating Manual 2068 0950 12 14 DVMD Operating Manual 2069 0348 12 07 DVRM Operating Manual 2069 0231 12 02 Black Box Corporation Terminal Server User and Administration Guide 8 Ordering information 7BM41_0E Rohde amp Schwarz products and options EFA TV Test Receiver 2067 3004 xx EFA K1 EFA Scan software 2067 9202 02 DVRM MPEG2 Real Time Monitor incl software RTmon 2068 8580 02 DVMD MPEG2 Measurement Decoder 2068 8597 02 DVMD B1 Stream Explorer software 2068 9406 02 Black Box Corporation products and options 41872 2 Port Desktop Terminal Server 41874 4 Port Desktop Terminal Server 40871 8 Port Rack Mount Terminal Server 40870 16 Port Rack Mount Terminal Server 37688 8 Port Desktop Terminal Server requires different cabling 37687 16 Port Desktop Terminal Server requires different cabling FA756 Female DB9 RJ45 Thumbscrew Wire Adapter Kit EVNSLcc Oddd CAT5 Patch Cable in different colors and lengths cc 21 blue
16. eeseeeeseeeessneees 3 3 Connecting the Computer and the Instrument s cceceeeeeeeeeeeeeees 3 4 Installing the Black Box Terminal Server ccccceccceeseeeeeeneeeeeeneees 4 Choosing and Setting an IP Address with ARP cccccseeeeeeeees 4 Entering the Terminal Server s Set Up Protocol ccccceeeeeeeee 5 Set up of the Server s Network Parameters cccececsseeeeeeeneees 6 Settings for TV Test Receiver EFA ccccccccccseececeeeeeceeeeeeeeeesneees 7 Settings for Realtime Monitor DVRM or Measurement Decoder DVMD te aide Seti sites age E didi Sato worden oe eles E ee oes eee 8 5 Setting the Application Software cccccecccceececseeceseseeeeeeeeeseeeesseeeess 10 EFA SCAN SOMW ANC erare teieni iE d AERE t arei 10 Realtime Monitor and Stream Explorer DVMD B1 0008 10 6 Troubleshooing i eteiaisntaissionna ts eire E R E E RAER Ee 11 IP Network LINK tins acibacct va cinta wsiden nein RaR E EEEE RAAR 12 Porn Assignments esskan E A a aS 12 RS232 Parame lel S ieiccbeckie sectienceedciedeni cine i a a 13 ales 1 os 0 e en nn i 13 6 Ordering information essesi Eai aai 13 Remote control capabilities through TCP IP via an Ethernet interfaces are these days usually implemented in every test and measurement device due to the widespread presence of this kind of networking technology It provides for easy access and routing of signals thro
17. oe ake nm rt Gn v evn Table 1 Connection diagram between computer and the instruments The following text assumes an EFA to be connected with port 1 and a DVRM or DVMD connected to port 2 of the server Different assignments are always possible For example one server could be connected to an array of EFA or DVRM units 4 Installing the Black Box Terminal Server Choosing and Setting an IP Address with ARP The terminal server comes with a fixed hardware MAC General address in the form Internet Protocol TCP IP Properties Ei EY fou can get IF settings assigned automatically if your network supports 00 80 D4 04 42 A3 this capability Othernwise you need to ask your network administrator for which is printed at the appropriate IP settings the bottom of the server Tem porarily Obtain an IF address automatically f Use the following IF address IP address 192 168 177 2 Subnet mask 255 255 255 address resolution protocol command D Sbtan DHG semer address automatically in a DOS or Use the following DNS server addresses Command Prompt Preferred DNS server a window The Ea chosen IP address has to match the range of IP Advanced addresses the PC can communicate within its current sub group an IP network address has to be assigned to that network address Default gateway Alternate DNS server Fig 2 TCP IP network properties within
18. or spate Run as different User Windows Explorer window and choose Start in C Program Files Rohde SchwarziMPEG Stree Properties from the Shortcut key None pop up menu A string has to be appended to Run Normal ennai the existing calling command which must Comment include the IP address Find Target Change Icon and the port number assigned to the physical port of the terminal ee Apply Server General Shortcut Desktop Icon Fig 11 Shortcut Properties for TCP IP communication of Stream Explorer or Realtime Monitor The string to be added to the existing target for the program s exe file is fiLPtrrresss lt UL 7 PORTevvvy Within this string rrr sss ttt uuu has to be replaced by the IP address previously assigned to the terminal server at the beginning of section 4 Fig 5 and vvvv is to be replaced by the port number assigned to the physical port to which the DVRM or DVMD is connected Fig 9 Fig 11 shows a working example for the software Stream Explorer and with the previously used sample values The EFA Scan software provides an easy way to test proper communication with the device over TCP IP In the Options Remote Control set up menu the Test button will send a command and read back a test string from the instrument which is displayed within the same window Fig 10 If communication fails then the string Failed would be entered within that field
19. pond with a TSERVER password prompt indicating its readiness to receive input oe Telnet 192 168 177 201 Connect Edit Terminal Help TSERVER password TERHINAL SERVER Terminal Server v 83 668 a TCP Please type HELP at command prompt if you need assistance TSERVER gt set term ansiff Fig 3 Entering the terminal server s command line mode The default password is an empty string so pressing the Return key will let the user proceed The server will then respond with a TSERVER gt prompt waiting for command input At this time it is still in a command line mode sending and receiving one line of characters or parameters at a time This initiating dialog is displayed in the following Fig 3 The terminal server will then enter its form based operating mode where all information is presented in full text screen mode for easy editing The first menu to appear will be the Connections Menu To move on to the Administration Menu for modification of the parameters press the Return key keep the cursor bar in the Admin mode and press the Return key again This dialog is shown in Fig 4 5 Rohde amp Schwarz LAN WAN Connection by using a Terminal Server oA Telnet 192 168 177 201 Connect Edit Terminal Help CONNECTIONS HEHU REMOTE ADHIN Connection Host 1 Commands 2 xxx FREE All 3 xxx FREE CLI 4 FREE Lock Logout DI This option allows you to configure
20. ssumed in the following others may be possible as well Table 2 RS232 interface parameters for EFA Use the key sequence SETUP REMOTE RS232 at the front panel of EFA to set the parameters locally The GUI menu is shown in Fig 6 SETUP RENOTE H5232 SET RF CHAHHEL ATTEN LOW P 213 00 HHz 13 UNDER 1400 2400 4800 3600 EA BAUD RATE YBIT DATA BITS HO EVEH O00 PARIT BIT ZBIT STOP BITS HO MOM AOFF AR DWAR HAMDOSHAKE Fig 6 Serial interface parameters on EFA The settings on the relevant port of the terminal server connected to the EFA have to be set accordingly To enter the menu use the item port in the Administration Menu by moving the cursor bar to that item and pressing the Return key The number of the physical port for example between 1 and T Rohde amp Schwarz 7BM41_0E LAN WAN Connection by using a Terminal Server 4 on a 4 port server has to be entered in an empty field followed by the Return key The Port Setup Menu as shown in Fig 7 will appear on the screen To modify any parameter move the cursor bar over the item and press the Return key A little pop up menu gives the choice values to enter another menu with the allowed values for that specific parameter The most important parameters to be set are Speed Parity data Bits Stop bit and Flow ctrl which all have to match the instrument s settings on the EFA om Telnet 192 16
21. t the TSERVER gt command prompt Press the Return key twice to enter the Administration Menu Move the cursor down to the port line and press Return again Now enter the physical port number for example between 1 and 4 on a four port 12 Rohde amp Schwarz 7 Literature LAN WAN Connection by using a Terminal Server server in order to enter the Port Setup Menu for this individual RS232 port The menu displays the actual settings including the port number to be used during IP addressing as well as the RS232 characteristics To make any changes the password iolan has to be entered in the Password command in the previous Administration Menu display RS232 Parameters The serial interface parameters like baud rate number of bits number of stop bits parity and hand shake of the instrument Fig 6 and 8 have to match the terminal server s settings for the relevant port Fig 7 and 9 The settings of EFA and DVMD can easily be modified in their respective user interface menus on the front display To view or modify the RS232 parameters of a DVRM the Realtime Monitor or Stream Explorer software has to be used through a local RS232 port on a PC or notebook as the DVRM has no manual user interface When checking the port settings on the terminal server it is of utmost importance to check the field Access to be set to Remote as this specific entry is different from the manufacturers
22. ugh any local site and even around the world Earlier serial interfaces of RS232 type have been the default and are still in legacy use To utilize this new technology even in cases when only an RS232 interface is present a terminal server can be used for interfacing It converts the commands from TCP IP protocol addressed to a dedicated port at the given Ethernet address into RS232 signals on a serial interface and back 2 Hard and Software Requirements 7BM41_0E Hardware Requirements The application note discusses the required settings for a terminal server from Black Box Corporation using instruments of type DVRM DVMD and EFA The model that is described in the application note is the 4 port desktop version 41874 Other models like the 2 port desktop 41874 or rack mount versions 40871 for 8 ports and 40870 for 16 ports are working in the same manner The 8 port 37688 and 16 port 37687 desktop versions will be identical regarding software set up however they require different cable connections as they have 25 pin DB25 connector plugs for the serial interfaces DBY to DB25 null modem cables 2 Rohde amp Schwarz LAN WAN Connection by using a Terminal Server Terminal servers from different manufacturers can be used but will require different steps for set up Please refer to the manufacturer s manual for detailed instructions in any case All notes regarding set up of the application software packages EFA Scan
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