Black Box COMPACT T1 MT850A - Manual (Page 530)

B-2 Compact T1 - Release 6.1
Diagnostices & Troubleshooting
Alarms
Alarms
Test Alarm
The Commpact T1 alarm functions can be manually tested using the following
command for setting critical, major and minor alarms. Turning alarms on or off will
produce alarm messages and log entries stating the alarm event was manually set/
cleared by the user.
Syntax: set alarms {critical|major|minor} {off|on}
Identify Alarm
Alarm indicators
l LEDs - When an Alarm is triggered, the LED (labeled CRD) will display a
red indicator light, which will stay on until the Alarm is cleared . The
following is the LED information for the T1 Controller card. For LED
infomation for the specific service card see the chapter for that card.
LED State Description
MAJOR Off No major alarms present
Red Major alarm present
MINOR Off No minor alarms present
Yellow Minor alarms present
LOCAL Off Remote mode (DIP switches disabled)
Green Local mode (DIP switches enabled)
ACO Off Normal mode. No alarms are being suppressed.
Yellow Alarm cutoff active. One or more active alarms
suppressed.
T1-1 and
T1-2 Off Off line
Green Normal
Red Loss of Signal (LOS) detected
Yellow Bipolar Violation (BPV) detected
Flashing Green Loopback active
Flashing Red Loss of Frame (LOF) or Alarm Indication Signal
(AIS) detected
Flashing Yellow Yellow alarm (Remote Alarm Indication) detected.