Nortel Networks NN44200-700 manual External LEDs, Description, Information

	600r server 51
MNR	A minor system fault is an error or event that
	has little impact on system operation. The
	system continues to operate.
PWR	A power supply fault indicates that one of the
	power supplies is not providing power. The
	MJR LED is also lit.
External LEDs
Description	Information

MPB96 DS30 link LEDs (three green LEDs located on the card bracket and visible from the back of the server)

When these LEDs are on, all three DS30 connections are working properly and the cables are connected correctly. If one or more LEDs are off, one of the following conditions is present:

	• One or more connections to the switch
	are interrupted. Check each of the three
	branches of the DS30 cable for faults, or
	replace the cable.
	• An MGate card in the switch is defective.
NIC LEDs	Each network interface card (NIC) has two
	LEDs:
	• The upper LED shows that the network
	cable is connected.
	• The lower LED blinks to indicate data
	transfer.
Power supply LED	The power supply has its own LED:
	• OFF = system or power supply is off or
	faulty
	• Red/Amber = power supply is faulty or
	cable is disconnected
	• Green = power supply is working correctly
	and powered on

Nortel CallPilot

Troubleshooting Reference Guide

NN44200-700 01.05 Standard

5.026 June 2007

Copyright © 2007, Nortel Networks