Nortel Communication Server 100 Manual page 145

This test checks general card functions and determines if they are
operating correctly. It is useful when first installing the cards because,
upon insertion, the card automatically starts the self-test and provides an
immediate indication of its operating status.
LED indicators
System cards are equipped with red LED indicators and module power
supplies are equipped with green LED indicators. These indicators show
the status of each card or power supply.
Carrier Remote IPE LED indicators Both the Local Carrier Interface
card and the Remote Carrier Interface card have LED indicators on the
front panel. These are:
•
Card LED – a red LED that indicates the status of the card. If the
LED is ON, the card may be faulty or disabled. When the card is
powered up, it blinks three times during self-test if functioning correctly,
otherwise it turns ON and stays ON. The LED turns OFF when the
card is software enabled.
•
Carrier LEDs – each red carrier LED is OFF when the carrier is
operating correctly or it is not equipped by the MMI command S C (Set
Configuration). If the carrier is faulty at either end, the carrier LED
turns ON and stays ON until faults are corrected at both ends.
Note:
Far-end alarms are communicated across the link if the
MicroLink is up (that is, a carrier is good end-to-end in both
directions).
•
Maintenance LED – an amber LED that turns ON when the card is in
the maintenance mode; that is, when carrier tests are running by the
MMI command over a carrier, or when alarms are disabled by the MMI
command A D, or when certain option DIP switches are set incorrectly
(SW1, pos 2 that selects the LCI or RCI card).
Carrier Remote IPE issues a local alarm (CRI1nnn) when a major alarm
occurs at the local system site and a remote alarm (CRI2nnn) when a
major alarm occurs at the Carrier Remote IPE site. In either case, the LED
indicating the alarm turns red. These alarms are printed on the TTY or
displayed on the maintenance terminal.
Figure 22 "NT7R51 Local Carrier Interface card" (page 146)
Local Carrier Interface card. It also shows the card LED that indicates the
status of the Local Carrier Interface card and each carrier link.
Nortel Communication Server 1000
Carrier Remote IPE Fundamentals
NN43021-555 04.01 4 June 2010
Copyright © 2007-2010 Nortel Networks. All Rights Reserved.
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