General

 

 

 

LED(s)

Description

 

 

 

NETWORK ALARMS

RED - RED alarm indicator is ON during a locally

 

detected carrier failure. During the RED alarm

 

condition, a YELLOW alarm is transmitted across the

 

telephone network.

 

YEL - YELLOW alarm indicator is ON when receiving

 

a YELLOW alarm condition from the telephone

 

network.

 

BLU - BLUE alarm indicator is ON when receiving

 

an unframed, all-ones Alarm Indication Signal

 

(AIS) from the network. This condition exists upon

 

a loss of originating signal, or when any action is

 

taken that would cause a signal disruption.

ON LINE

This LED is green and ON when the T1 engine is

 

connected to a T1 line.

DI SYNC

This LED is green and ON when the T1 engine is

 

detecting frame synchronization on the drop and

 

insert interface receiver. The green LED is OFF when

 

there is a loss of frame (LOF) synchronization.

 

A LOF condition causes the T1 engine to transmit

 

unframed all ones (keep-alive) to the device attached

 

to the Drop and Insert Interface.

SYSTEM

ATTN - The ATTN (Attention) indicator is amber and

 

ON when the CSMIM-T1 requires operator attention.

 

The indicator is flashing when there is a problem.

 

STAT - The STAT (Status) indicator is green and ON

 

after the CSMIM-T1 passes the core power-up

 

diagnostics. The indicator flashes after resetting the

 

CSMIM-T1.

 

TRAF - The TRAF (Traffic) indicator is green and

 

flashing when the CSMIM-T1 successfully transmits

 

or receives data from the LAN.

 

SETUP - The SETUP indicator is green when the

 

SETUP button is pressed ON (SETUP Mode) and

 

flashing when the SETUP button is pressed ON for 3

 

seconds (RESET Mode).

Ethernet Channel

Three green LED’s that indicate the Ethernet channel

Indicators A, B, and C

that is selected by either the software or jumper

 

configuration.

 

 

 

CSMIM-T1 Hardware Installation Guide

5-3

Page 87
Image 87
Cabletron Systems CSMIM-T1 manual General