Clear-Com Cellcom Instruction Manual download pdf (Page 42)

3-4 EF-701M INTERFACE

Data Troubleshooting Tips

Symptom Cause Solution

Data LED is off even though

units are connected at each

end.

1. Problem in the wiring from the

DB-15 to the modem or problem

with the transmission medium.

2. Baud rate or other modem

requirements not compatible with

EF-701M.

3. The EF-701M units are set to

different baud rates.

4. One EF-701M is set to Matrix

Direct Mode when connected to

another EF-701M.

1. Adjust wiring.

2. Adjust EF-701M units to match.

3. Adjust EF-701M units to match.

Data LED blinks rapidly. EF-701M is receiving a "break" signal

from the RS-422. Typically a power

loss on the modem at the far end

causes this.

Check modem power connections.

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Clear-Com Cellcom Instruction Manual Page 42