Figure – Nortel Networks 1000 User Manual
Page 956
956
NTRB21 DTI/PRI/DCH TMDI card
Figure 276
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 956)
.
Table 403
NTRB21 LED states
LED
State
Definition
DIS
On (Red)
The NTRB21 circuit card is disabled.
Off
The NTRB21 is not in a disabled state.
ACT
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 has been
disabled. See the other faceplate LEDs for more information.
RED
On (Red)
A red-alarm state has been detected.
Off
No red alarm.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.