Figure – Nortel Networks 1000 User Manual
Page 960
960
NTRB21 DTI/PRI/DCH TMDI card
Figure 278
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
"NTRB21 LED states" (page 959)
.
Table 405
NTRB21 LED states
LED
State
Definition
On (Red)
The NTRB21 circuit card is disabled.
DIS
Off
The NTRB21 is not disabled.
On (Green)
The NTRB21 circuit card is in an active state. No alarm states
exist, the card is not disabled, and it is not in a loopback state.
ACT
Off
An alarm state or loopback state exists, or the card has been
disabled. See the other faceplate LEDs for more information.
On (Red)
A red-alarm state has been detected.
RED
Off
No red alarm.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.