Avaya Nortel Communication Server 1000 Reference page 653
Circuit card reference
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Also See for Nortel Communication Server 1000:
- Manual (570 pages) ,
- Configuration manual (350 pages) ,
- Hardware installation and maintenance (262 pages)
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Figure 196: NTRB21 TMDI card with clock controller
In general, the first five LEDs operate as follows:
• During system power up, the LEDs are on.
• When the self-test is in progress, the LEDs flash on and off three times, then go into their
appropriate states, as shown in
Table 265: NTRB21 LED states
LED
DIS
ACT
RED
YEL
Circuit Card Reference
State
On (Red)
The NTRB21 circuit card is disabled.
Off
The NTRB21 is not in a disabled state.
On (Green)
The NTRB21 circuit card is in an active state. No alarm
states exist, the card is not disabled, nor is it in a loopback
state.
Off
An alarm state or loopback state exists, or the card is
disabled. See the other faceplate LEDs for more
information.
On (Red)
A red-alarm state is detected.
Off
No red alarm.
On (Yellow)
A yellow alarm state is detected.
Table 265: NTRB21 LED states
Definition
Physical description
on page 653.
July 2011
653
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