Quad t1 card, V.35/v.54 card – Black Box COMPACT T1 User Manual
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Compact T1 - Release 6.1
Quick Start
Service Cards
Quad T1 Card
Each channel on the Quad T1 card has two LEDs. The description of the top LED is
shown below, the bottom LED is not used with this application.
V.35/V.54 Card
Each V.35 port has its own LED, as shown in the table below.
State
Description
Off
Off line
Green
Normal
Red
Loss of Signal (LOS)
Yellow
Bipolar Violation (BPV)
Flashing Green
Loopback active
Flashing Yellow
Yellow Alarm
(Remote Alarm Indication)
Flashing Red (Slow)
Loss of Frame (LOF) or Alarm Indication Signal (AIS)
Flashing Red (Fast)
Self-test Failure
State
Description
Off
No T1 Assignment
Green Normal
(CD/RTS)
Active
Red
CD inactive (T1-side failure)
Yellow
RTS inactive (equipment-side failure)
Flashing Yellow
Loopback toward T1 or equipment loop test
Flashing Green
Loopback toward equipment or network loop test