TM 11-7440-232-12/NAVELEX 0967-LP-275-5010
During maintenance and testing, switch position
BACK-TO-BACK allows testing of the receive
and transmit branch by routing the transmit
branch output into the receive branch.
DECODER ERROR DETECTOR
BIT RATE Switch
Two position toggle switch
During operation, controls received data rate
LOW-600/1200 bps
HIGH-2400 bps
DIGITAL RECEIVER CLOCK
BIT RATE Switch
Three position rotary switch
During operation, controls operating data rate of
receive and transmit branches 0.6, 600 bps 1.2,
1200 bps 2.4, 2400 bps
DATA CARRIER ALARM
ALARM CUTOFF Switch
Two position toggle switch
During operation, controls output of alarm signal
to peripheral data center visible/audible alarms
NORM, alarm signal routed to peripheral alarm
IN CUT OFF Position, cancels alarm signal
POWER SUPPLY
ON/OFF Switch
Two position toggle switch
Turns power supply on or off
During operation, switch position ON applies low
voltage power to digital data modem
2-2
