Circuit Card Leds; Media Card Leds - Nortel 1000E Maintenance Manual

44 Hardware maintenance tools

Circuit card LEDs

Many circuit cards have one or more LEDs on the faceplate. The LED gives
a visual indication of the status of the card or of a unit on a card.
When a green LED is steadily lit, the card is operating normally. When a
green LED is off, the card is disabled or faulty.
When a red LED is steadily lit, the card, or a unit on it, is disabled, faulty
or unequipped.
When a red LED is off and power is available to the card, the card is
operating normally.

Media Card LEDs

The Media Card faceplate provides the following LEDs.
Status LED
The Media Card faceplate red LED indicates the following:
•
•
Ethernet activity LEDs
The Media Card faceplate contains Ethernet activity LEDs for each subnet.
The faceplate contains six Ethernet activity LEDs, three for the ELAN subnet
and three for the TLAN subnet. The LEDs indicate the following links on the
ELAN and TLAN subnets (in order from the top):
•
•
•
Maintenance hex display
The four-digit LED-based hexadecimal display provides the status of the
Media Card at all times. The hex display provides an indication of fault
conditions and the progress of PC Card-based software upgrades or
backups. See
(page 162)
The Maintenance display also indicates the progress of the internal self-test
in the form of T:xx.
Copyright © 2007, Nortel Networks
.
the enabled/disabled status of the card
the self-testing result during power up or card insertion into an
operational system
100 (100BaseT)
10 (10BaseT)
A (Activity)
Table 36 "Media Card faceplate maintenance display codes"
for a description of the hex display codes.
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 01.02 Standard
Release 5.0 20 June 2007