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MIX 56 User Manual 1 Descriptions
122188-10 A0 Telect, Inc.
1-5
LED Panel
NOTE
When a MIX 56 system used as a multiplexer is operating normally, the
High Speed and Low Speed LEDs on the LED panel and the active M13
card LED are all green. If the system is redundant, the standby card LED is
orange. Any LED configuration other than this indicates the system is not
operating normally.
LED Status Definition
Critical
Red
One or more critical alarms. (Two or more DSIs and/
or DS3 service affecting conditions.)
Unlit No critical alarms
Major
Red
One or more major alarms. (DS1 or DS3 service im-
pacting condition.)
Unlit No major alarms
Minor
Yellow
One or more minor alarms. Service processing and
traffic unaffected.
Unlit No minor alarms
Maintenance
Yellow
Diagnostic tests are being performed; at least one
circuit is out of service
Unlit No diagnostic tests are being performed
High Speed
Red
Receiving alarm indication signal (AIS) or experienc-
ing loss of signal (LOS) or out of frame (OOF) signal
Yellow Receiving remote alarm indication (RAI)
Green Operating normally
Unlit Out of service or no power
Low Speed
Red Receiving AIS or experiencing LOS
Green Operating normally
Unlit Out of service or no power
Alarm Cutoff (ACO)
Yellow ACO is engaged
Unlit ACO is not engaged
Minor
Major
Critical
Low Speed
High Speed
Maintenance
Alarm Cutoff
(
ACO
)
CRAFT
HS
CRT MJR
MNR MAINT
LS ACO
ACO/LAMP