862 NTAK091.5 Mb DTI/PRI card
LED State Definition
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.
YEL On (Yellow) A yellow alarm state has been detected.
Off No yellow alarm.
LBK On (Green) NTAK09 is in loop-back mode.
Off NTAK09 is not in loop-back mode.
The DTI/PRI card uses a standard IPEsized (9.5" by 12.5"), multilayer
printed circuit board with buried power and ground layers. It is keyed
to prevent insertion in slot 10. The clock controller and D-channel
daughterboards are fastened by standoffs and connectors.
The NTAK09DTI/PRI card has seven faceplate LEDs. The first five
LEDs are associated with the NTAK09card, the remaining two LEDs are
associated with the clock controller and DCHI daughterboards.
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 flashon and off three times,
then go into their appropriate states, as shown in Table351 "NTAK09
LED states" (page 862).
Table351
NTAK09LED states
LED State Definition
DIS On (Red) The NTAK09 circuit card is disabled.
Off The NTAK09 is not in a disabled state.
ACT On (Green) The NTAK09 circuit card is in an active state. No alarm states exist,
the card is not disabled, nor is it ina 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.
YEL On (Yellow) A yellow alarm state has been detected.
Off No yellow alarm.
LBK On (Green) NTAK09 is in loop-back mode.
Off NTAK09 is not in loop-back mode.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 01.04 Standard
Release 5.0 23 May 2008
Copyright© 2003-2008, Nor tel Networks
.