Figure 302 ntrb21 tmdi card with clock controller, Table 434 ntrb21 led states, Figure 302 – Nortel Networks Circuit Card 311 User Manual
Page 1060
1060
NTRB21 DTI/PRI/DCH TMDI card
Figure 302
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 434
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.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.