Nortel Networks 1000 User Manual
Page 161
Physical description
161
printed circuit board. The daughterboard is contained on a 5.08 by 15.24
cm (2.0 by 6.0 in) printed circuit board and mounts to the motherboard on
six standoffs.
The Lineside T1 card mounts into any two consecutive IPE slots. The
card consists of a motherboard and a daughterboard. The motherboard
circuitry is contained on a standard 31.75 by 25.40 cm. (12.5 by 10.0 in)
printed circuit board. The daughterboard is contained on a 5.08 by 15.24
cm (2.0 by 6.0 in) printed circuit board and mounts to the motherboard on
six standoffs.
The Lineside T1 card mounts into any two consecutive IPE slots. The
card consists of a motherboard and a daughterboard; both are printed on
standard circuit board.
In general, the LEDs operate as shown in
Table 63
NT5D14AA Lineside T1 Faceplate LEDs
LED
State
Definition
On (Red)
The NT5D14AA card either failed its self-test or it hasn’t
yet been configured in software.
STATUS
Off
The card is in an active state
On (Red)
A red alarm has been detected from the T1 link. (This
includes, but is not limited to: not receiving a signal, the
signal has exceeded bit error thresholds or frame slip
thresholds.)
RED
Off
No red alarm exists.
On (Yellow)
A yellow alarm state has been detected from the terminal
equipment side of the T1 link. If the terminal equipment
detects a red alarm condition, it may send a yellow alarm
signal to the Lineside T1 card (this depends on whether or
not your terminal equipment supports this feature).
YEL
Off
No yellow alarm.
On (Red)
The card detects whether tests are being run or that
alarms are disabled through the Man-Machine Interface.
The LED remains lit until these conditions are no longer
detected.
MAINT
Off
The Lineside T1 card is fully operational
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.