Circuit Pack Descriptions
7-98 Issue 8.0 July 2002
Faceplate LED 7
The OC48 TRMTR A/D circuit pack has a red FAULT LED on its faceplate
(Figure 7-29).
The red FAULT LED is lighted when a circuit pack failure is detected or when the
circuit pack loses power. If the circuit pack loses power, a separate path is
provided for power from the Line Controller (LNCTL) circuit pack to light the
FAULT LED on the OC48 TRMTR A/D circuit pack.
The board controller on the OC48 TRMTR A/D circuit pack detects hardware and
software faults on the circuit pack. When a fault occurs, the board controller is
reset and the FAULT LED on the circuit pack is continuously lighted.
Figure 7-29. OC48 TRMTR A/D (739B2, 739B4, 739B5, 739C2, 739C5,
739E[1-16], 739G[1-8], 739H[1-16], 739J2, 739J3, 739J4,
739J5, 739P5, 739R2, 739R5, 739S2, and 739S5)
Circuit Pack
Optical
Connector
FAULT
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739D1
TRMTR