NEC 2400 Integration Manual page 116

The VM LED is yellow constantly (more than 5% packet transmission error).
Possible Reason:
Remedy:
Possible Reason:
Remedy:
Possible Reason:
Remedy:
VM LED is red constantly (more than 50% packet transmission error).
Possible Reason:
Remedy:
Possible Reason:
Remedy:
Possible Reason:
Remedy:
A-4
Issue 2 December 1995
The SMDI cable is loose.
Tighten the SMDI cable connections.
The SMDI communications port baud rate, parity, and
other settings are not correct.
Refer to Chapter 8, "Switch Integration Device
Administration", for instructions on configuring the
SMDI link.
The SMDI cable may be defective.
Replace the cable. Refer to Chapter 4, "Hardware
Installation", for instructions on connecting the SMDI
cable.
The SMDI cable is loose.
Tighten the SMDI cable connections.
The SMDI communications port baud rate, parity, and
other settings are not correct.
Refer to Chapter 8, "Switch Integration Device
Administration", for instructions on configuring the
SMDI link.
The SMDI cable may be defective.
Replace the cable. Refer to Chapter 4, "Hardware
Installation", for instructions on connecting the SMDI
cable.