If the Base is first in a string, (not in the middle or end of a string), set the 422 jumpers to Base w/RS- 422 termination.

The last Relay in each string should have its jumpers set as a Relay w/RS-422 termination. Any Relay that is not the last relay in the string would not be terminated.

Relay Station failures are often cable-related. If a Terminal puts out a “Who Can Hear Me?” message and a Relay that is for some reason not connected to the Base Station (bad cable, cut cable, broken connectors) hears it, it answers with the message:

Relay n Cannot Be

Heard by the Base

Notify Supervisor

Press Any Key

At this point, it is up to the operator to notify someone that the Relay is not communicating with the Base and to check the cabling first. There is no message sent to the host, so it is very important that the operator that receives this message notify someone immediately.R/F Serial Pin-outs.

R/F Serial Pin-outs

Base Station to Host Pin-outs

The Base Station is connected to a PC with one of the following cables:

F34 DB25 Null Modem Cable

These are the pin-outs for Cable F34, a DB25 Female to 8 pin modular RJ45 with pins 2 and 3 crossed, used for a Base connected directly to a 25 pin male host serial port.

Mod 8 RJ45

Function

DB25 Female

1

Frame Ground

1

2

Transmit Data

3

3

Receive Data

2

4

Signal Ground

7

F34 Null Modem Cable

Modular Pins 5-8 are connected to DB25 pins 5,6,8,4 but not used by the R/F Base.

If you are planning to use a serial extension cable of 80 feet or more, you need to open the DB25 shell of our cable and be sure that only pins 1,3,2, and 7 are connected. All others should be cut. This is necessary to keep Windows from following noise transitions as handshaking transitions that can severely degrade the application or even crash Windows.

F36 DB9 Straight Cable

These are the pin-outs for Cable F36, a DB9 Female to 8 pin modular RJ45. This cable is used to connect the Base to a 9 pin Male host serial port.

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Worth Data 7000 manual Serial Pin-outs, Base Station to Host Pin-outs, F34 DB25 Null Modem Cable, F36 DB9 Straight Cable

7000 specifications

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