CTC Union SHDTU03 Manuel d'utilisateur télécharger pdf (Page 12)

Chapter 2. Hardware Installation

2-2

The following table describes the LEDs’ function of the SHDTU03.

LED Color

Action

Description

On Power is on.

PWR Green

Off Power is off.

On Major alarm occurs.

ALM Red

Off System is working normally.

On System is testing for connection.

System

TST Yellow

Off System is working normally.

On SHDSL line is connected.

Blink Data transmit in SHDSL line.

SYN Green

Off SHDSL line has dropped.

Blink There are error seconds.

ERR Red

Off There are not any error seconds.

On Loopback is on.

SHDSL

LBK Yellow

Off Loopback is off.

On E1 line is connected.

SYN Green

Off E1 line has dropped sync.

Blink There are error seconds.

ERR Red

Off There are not any error seconds.

On Loopback is on.

G.703

LBK Yellow

Off Loopback is off.

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