Worth Data 7000 R/F Serial Pin-outs

• 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

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.