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

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