User manual

Diagnostics & Troubleshooting
LED Test and Status Indicators
7-2 July 2004 Wide Bank 28 DS3 - Release 2.4
LED Test and Status Indicators
 Power LED ... 7-3
 Alarm Cutoff (ACO) LED and Pushbutton ... 7-3
 Critical (CR) Alarms ... 7-4
 Major/Minor (MJ/MN) Alarms ... 7-4
 Controller Status (CS) LED ... 7-5
 High Speed (HS) Line Condition LED ... 7-5
 Low-Speed DS1/E1 Line Status LEDs (one per span) ... 7-6
 Ethernet Status LED ... 7-6
Status LED indicators on the Wide Bank 28 DS3 control panel provide a visual means of identifying
system status, high-speed DS3 line condition, and low-speed DS1/E1 line status.
Low Speed Status LEDs
Spares (1-4)
High Speed Controller BHigh Speed Controller A
1-4 5-8 25-2821-24
POWER
ACO
CTRL STAT
CRITICAL
MAJOR/MINOR
HIGH SPEED CONDITION
9-12 13-16 17-20
Standard Faceplate
Fan Faceplate
FAN A FAN B