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Troubleshooting, Troubleshooting 19 – Interlogix MC251-4P/1CXT User Manual

Page 23

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IFS MC251-4P/1CXT User Manual 19

Troubleshooting

SYMPTOM:

VDSL LNK LED does not light after wire is connected to the
VDSL port.

CHECKPOINT:

• Verify that the length of the wire connected between two

MC251-4P/1CXT is not more than 2.4km. Please also try to
adjust the DIP switch of the MC251-4P/1CXT to other SNR
mode.

• Please note you must use one MC251-4P/1CXT with

Master mode and the other MC251-4P/1CXT with Slave
mode.

SYMPTOM:

TP LED does not illuminate after the cable is connected to the
port.

CHECKPOINT:

• Verify that you are using the Cat. 5, 5e or 6 cables with an

RJ-45 connector to connect to the port.

• If your device (i.e. LAN card) supports Auto-Negotiation, try

to set it to a fixed speed manually.

• Make sure that both converter and the connected devices

are turned on.

• Make sure that all cables are properly plugged into the

correct ports.

• Make sure that the cable is not bad.

• Make sure that the power adapters are functional for each

device.