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24

6.3.2

Data Ports, continued

To a PC using terminal emulation

SPL

Computer

DB-25P

DB-25S

DE-9S

To a MODEM or other DCE Device

SPL

Modem

DB-25P

DB-25

(flow control)

(flow control)

2

3

4

5

7

8

11

3

2

8

4

7

20

5

2

3

4

5

6

7

8

11

2

or

3

3

or

2

20 or

4

5

or

8

6

or

6

7

or

5

8

or

1

4

or

7

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Summary of Contents for SPL Multidrop

Page 1: ...ATION 5 SECTION 4 CONTROLS AND INDICATORS 7 SECTION 5 NETWORK MANAGEMENT PORT 13 SECTION 6 INTERFACE SIGNALS AND CABLING 21 SECTION 7 TROUBLESHOOTING 27 SECTION 8 WARRANTY 30 Data Comm for Business In...

Page 2: ...alog or digital phone lines While similar in appearance to the SPL the SPLD is a totally different product designed for a different application and should be treated as such Some of the switches perfo...

Page 3: ...female connectors 2 1 2 Composite Port Speed Synchronous to 64 Kbps Asynchronous at 1200 2400 4800 9600 19 200 or 38 400 bps Interface RS 232D implemented in DB 25 male connector 2 2 Environmental Ope...

Page 4: ...ion Change Port Configuration Change Delay Timeout Change ID Change Network Configuration Activity Counts Drop Activity Zero Activity Counters Flow Control Test Tools Capture Port Copy Command Show RS...

Page 5: ...ave a unique DROP ADDRESS set into switches behind the front panel In addition each data port must have the proper speed parity and flow control settings This is also done with switches See Section 4...

Page 6: ...Set the modem or DSU CSU for controlled carrier operation 4 Connect the multiplexer Network port to the modem or DSU CSU using the cable supplied 5 Connect the modem or DSU CSU to the phone line 6 Use...

Page 7: ...2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Network Port 1 Port 2 Port 11 Port 14 Figure 1 Configuration Switches Figure 1 illustrates the Network and Port Configura...

Page 8: ...n Up Down Down 5 Down Down Up Down Up 6 Down Down Up Up Down 7 Down Down Up Up Up 8 Down Up Down Down Down 9 Down Up Down Down Up 10 Down Up Down Up Down 11 Down Up Down Up Up 12 Down Up Up Down Down...

Page 9: ...ussed in more detail in Section 7 Normally this switch should be left down 4 1 2 2 Flow Control and Parity Flow control and parity must be set for each port using positions 3 4 and 5 of the port DIP s...

Page 10: ...3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Reset Switch Port 1 Setup Normal Switch Figure 2 Special Swi...

Page 11: ...icators provide information about the multiplexer s operation You should become familiar with which lights are on during normal operation If this pattern changes there may be a problem The indicators...

Page 12: ...indicators located behind the front panel directly to the left of the network switch 1 2 3 4 5 6 Transmit Receive Data Port 1 Transmit Receive Data Port 2 Port 1 Setup active Buffer Overflow Port Loo...

Page 13: ...ion cannot be used if a printer is connected to port 1 5 2 2 Dedicated Terminal The NMP functions are also available through a port on the rear of the unit labeled Exec Port To connect a dedicated ter...

Page 14: ...4 17 Repeat Last Command 5 4 18 Disconnect NMP BYE 5 4 19 5 4 2 Help Network The Help Network HN command displays the drop address settings for the 6 position drop address switch 5 4 3 Help Port The...

Page 15: ...Config The Remote Change Port Config RCP command sets the remote port configuration This command requires a local Drop port number argument The multiplexer sends the configuration to the proper host p...

Page 16: ...he Show Network Config command SN displays the current network port configuration synchronous or asynchronous and whether to use or ignore modem DCD 5 4 13 Change Network Configuration The Change Netw...

Page 17: ...th this command 5 4 17 Type The Type TY command displays information about the local multiplexer The Remote Type RTY command is used to display similar information about the remote multiplexer 5 4 18...

Page 18: ...A permits the network management port to capture any of the local ports While this command is active the normal data path is interrupted and a two way communication link is established between the net...

Page 19: ...site In this case the port number is the port to which the trainee s terminal is attached This command is used only at the remote site The Remote Copy command is active until two consecutive ESC chara...

Page 20: ...an error message is returned 5 4 30 Monitor Port TX or RX The Monitor Port TX MT command monitors data transmitted from the selected port to the corresponding port of the remote Host multiplexer The M...

Page 21: ...21 6 1 Connector Location and Pin Reference Exec Port NMP Network Port 2 Port 1 Port 11 Port 14 Figure 4 Connector Location Rear View Pin1 Pin 1 Pin 1 Figure 5 Connector Pin Reference...

Page 22: ...a Terminal Ready OUT 6 2 2 Data Ports DB 25S Pin Signal In Out 1 Frame Ground 2 Transmit Data IN 3 Receive Data OUT 4 Request to Send IN 5 Clear to Send OUT 6 Data Set Ready OUT 7 Signal Ground 8 Data...

Page 23: ...or this purpose If a longer cable is needed a minimum of 10 conductors are required SPL Modem DB 25S DB 25P 6 3 2 Data Ports To a TERMINAL PRINTER or other DTE Device SPL DTE Device DB 25P DB 25 or ot...

Page 24: ...ing terminal emulation SPL Computer DB 25P DB 25S DE 9S To a MODEM or other DCE Device SPL Modem DB 25P DB 25 flow control flow control 2 3 4 5 7 8 11 3 2 8 4 7 20 5 2 3 4 5 6 7 8 11 2 or 3 3 or 2 20...

Page 25: ...rt To a TERMINAL NMP Terminal DE 9P DB 25P To a PC using terminal emulation NMP Computer DE 9P DE 9S DB 25S To a dial up MODEM for remote access NMP Modem DE 9P DB 25P 2 3 4 5 7 3 or 2 2 or 3 4 or 20...

Page 26: ...th 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 th...

Page 27: ...sts It is best 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 Pu...

Page 28: ...e the multiplexers are 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...

Page 29: ...al 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 setti...

Page 30: ...al damages etc DCB liability shall not exceed the original purchase price All equipment returned for warranty repair must be accompanied by a Returned Material Authorization RMA number To receive an R...

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