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Page Title:
Table 4-1. Multiplexer Set Controls and Indicators |
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 T.O. 31W2-2GSC24-2
TM 11-5805-688-14-1
NAVELEX 0967-LP-545-3011
Table 4-1. Multiplexer Set Controls and Indicators
Controls/Indicators
Function
POWER CONTROL switch
Applies multiplexer set operating power.
POWER CONTROL ON indicator
Lights when operating power is applied.
POWER CONTROL circuit breaker
Provides equipment protection when electrical
overload occurs.
SYSTEM STATUS group
LOSS OF MUX TIMING indicator
Lights when source of multiplexer reference
timing is removed. Remains lighted until
reset.
LOSS OF DEMUX TIMING indicator
Lights when source of demultiplexer input
timing is removed. Remains lighted until
reset.
LOSS OF FRAME A indicator
Lights only when demultiplexer is not
synchronized with transmitting multi-
plexer.
LOSS OF FRAME B indicator
Also lights when demultiplexer is not
synchronized with transmitting multi-
plexer, but remains lighted until reset.
LINK ERROR RATE indicator
Lights when bit error rate applied to
demultiplexer exceeds a predetermined
threshold.
ALARMS group
POWER SUPPLY indicator
Lights when a power supply malfunction is
detected.
TEMPERATURE indicator
Lights when internal operating temperature
exceeds 205F (96C).
TEST CONTROL group
LAMP TEST switch
When pressed, causes a test of all indicators
except POWER CONTROL ON indicator
SELF TEST switch
When set to on (up) position, initiates
a test of built-in diagnostic circuits
4-2
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