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5.4.36 Port Reset

The Port Reset (PR) command is used to reset flow control to hung

ports. A range of host port numbers or ALL may be included with this

command. Flow control leads at both the host and drop ports are reset.

5.4.37 Reset Mux

The Reset Mux (RESET) command performs a local multiplexer reset.
The Remote Reset (RRESET) command resets a remote drop, and

requires a drop number.

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Содержание SRX Multidrop

Страница 1: ...PANEL CONTROLS AND INDICATORS 9 SECTION 5 NETWORK MANAGEMENT PORT 13 SECTION 6 INTERFACE SIGNALS AND CABLING 23 SECTION 7 TROUBLESHOOTING 29 SECTION 8 WARRANTY 32 APPENDIX MULTIDROP MAP WORKSHEET 33 D...

Страница 2: ...port Single Host Configuration The SRX multidrop host multiplexer can have up to 32 ports in increments of 8 ports Network configuration is set from the front panel LCD display or via the Network Man...

Страница 3: ...vive power failures To reset all ports to the factory defaults and clear all local IDs and port mappings press and hold the OK switch while pressing RESET OPTION MODEM READY LINE ERROR ACTIVITY POWER...

Страница 4: ...connectors 2 1 2 Composite Port Speed Synchronous to 128 Kbps Asynchronous at 1200 2400 4800 9600 19 200 or 38 400 bps Interface RS 232D implemented in RJ 45 8 position connector 2 2 Environmental Ope...

Страница 5: ...e Map Change Network Configuration Change Restart Timer Activity Counts Drop Activity Zero Activity Counts Flow Control Test Tools Capture Port Copy Command Show RS232 Test Message Remote Test Loop Mo...

Страница 6: ...SU and a Network Management terminal Manual SPL 2 TO 14 CHANNEL STATISTICAL MULTIPLEXER DCB PRODUCT MANUAL DCB Information regarding warranty maintenance contracts and repair If a multiple host system...

Страница 7: ...t port Front panel operation is covered in Section 4 the Network Management port is discussed in Section 5 3 4 Connections 3 4 1 Single Host Connection to the host modem or DSU CSU is made using the s...

Страница 8: ...P L E X E R D CB BPV CARRIER LOSS FRAME ERROR SYNC LOSS POWER NEXT INCROK T DRIVER D C B RESET Host SRX SRX Modem DSU See Section 6 Modem to Composite Cable Ribbon Cable Modem Sharing Unit 3 5 Install...

Страница 9: ...through the various options available The OK key is pressed to accept the selected value or to enable or disable the selected test OPTION MODEM READY LINE ERROR ACTIVITY POWER NEXT INCR OK SRX 8 16 M...

Страница 10: ...renced to the local host port number Configurable parameters include port loopback LP OFF flow control and speed Configure All Port Parameters The CFG All screen selects the port configuration paramet...

Страница 11: ...reen shows the flow control status for each host port The INCR key changes the host port number Only mapped ports are displayed 4 1 3 Operation To change a setting first press the NEXT key until you s...

Страница 12: ...without a response from the remote multiplexer FLASHING SLOW Problem with the composite link LINE ERROR Flashes when data error is detected ACTIVITY ON Multiplexing mode with no data activity FLICKER...

Страница 13: ...of all unassigned drop numbers Suspend Kill or Restart polling to an individual drop Reset an individual port Reset the remote multiplexer Set local time and date 5 2 Connections and Setup The NMP is...

Страница 14: ...ID 5 4 6 Map CM 5 4 8 Network Config CN 5 4 10 Restart Timer CT 5 4 12 Activity Counts AC 5 4 13 Drop Activity DA 5 4 14 Zero Activity Counts Z 5 4 14 Flow Control FC 5 4 15 Test Tools TT 5 4 19 Type...

Страница 15: ...fig RCP command sets the remote port configuration This command requires a local Host port number argument The host multiplexer sends the configuration to the proper remote drop and port number based...

Страница 16: ...apped to a single host 5 4 9 Show Network Configuration The Show Network Config SN command displays the current network port configuration synchronous or asynchronous 5 4 10 Change Network Configurati...

Страница 17: ...be set to AUTO or fixed at 10 10000ms The default is AUTO 5 4 13 Activity Counts The Activity Counts AC command shows the current statistics for all ports The drop port error counts are requested fro...

Страница 18: ...dial up modems or the DCB Access Switch 5 4 19 Test Tools The Test Tools TT menu summarizes the test and troubleshooting commands These commands are listed separately to reduce the clutter in the mai...

Страница 19: ...is active until two consecutive ESC characters are issued 5 4 22 Copy Command The Copy Command CC is used for training This command is used when the instructor is at the host site and the trainee is...

Страница 20: ...erminal A local port number must be included on the command line If the port is not mapped an error message is returned 5 4 28 Remote Test Loop The Remote Test Loop RTL command is used to test a data...

Страница 21: ...n suspended or killed during troubleshooting Killed drops must be restarted suspended drops will restart automatically after 15 minutes 5 4 33 Kill Drop Polling Kill Drop Polling KD is used during tro...

Страница 22: ...A range of host port numbers or ALL may be included with this command Flow control leads at both the host and drop ports are reset 5 4 37 Reset Mux The Reset Mux RESET command performs a local multipl...

Страница 23: ...RFACE SIGNALS AND CABLING 6 1 Connector Location and Pin Reference SR 16 Rear Panel and RJ 45 Jack RJ 45 Plug Positions 1 2 3 4 5 6 7 8 1 2 3 4 6 7 8 5 9 10 11 12 13 14 15 16 POWER COMPOSITE NETWORK M...

Страница 24: ...8 Clear to Send IN 6 2 2 Data Ports RJ 45 Pin Signal In Out 1 Data Set Ready OUT 2 Data Carrier Detect OUT 3 Busy IN 4 Signal Ground 5 Receive Data OUT 6 Transmit Data IN 7 Clear to Send OUT 8 Request...

Страница 25: ...cable is included with each SRX multiplexer The configuration is as follows SRX Modem RJ 45 DB 25P 6 3 2 Data Ports to Host Computer Configured as DTE SRX Computer RJ 45 DB 25 or other flow control o...

Страница 26: ...X Computer RJ 45 DB 25 or 4 if 20 is flow control or other flow control output pin or other flow control input pin To a PC Com Port SRX Computer RJ 45 DB 25S DE 9S 1 2 3 4 5 6 7 8 20 5 7 2 3 4 8 1 2 3...

Страница 27: ...o a TERMINAL NMP Terminal RJ 45 DB 25P To a PC using terminal emulation NMP Computer RJ 45 DE 9S DB 25S To a dial up MODEM for remote access NMP Modem RJ 45 DB 25P 20 7 3 2 5 6 8 4 3 4 5 6 7 8 4 or 20...

Страница 28: ...path used to wake up the remote device Many host computers require DCD to issue a login prompt Busy to CTS is the hardware flow control path For CTS Busy flow control the hardware flow control pin of...

Страница 29: ...to begin loopback testing at the remote terminal and work toward the host If all the loopbacks are successful the data communications equipment and the terminal are working correctly Put the SPL Drop...

Страница 30: ...polling The SRX Host should be polling the SPL Drop multiplexers The host DSU Send Data Receive Data and Carrier Detect lights should be flashing The polling on DSUs is often so fast that the lights...

Страница 31: ...Most of these problems are due to flow control not matching between the printer or terminal and the multiplexer If terminals and printers work for a while and then hang check the flow control setting...

Страница 32: ...ial damages etc DCB liability shall not exceed the original purchase price All equipment returned for repair must be accompanied by a Returned Material Authorization RMA number To receive an RMA numbe...

Страница 33: ...33 DCB MultiDrop Multiplexer Map Worksheet Host Port Host Port ID Remote Drop Remote Port Remote Port ID 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32...

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