TM 11-5815-602-10
EE161-DM-OPI-010/E154UGC74
TO 31W4-2UGC74-1
(2) When a BEL code is received in the ASCII Mode.
d. A steady alarm will sound when:
(1) A message with a precedence of IMMEDIATE or higher has been received. When
message is printed, alarm automatically turns off.
(2) An ASCII character with a parity error is received (PARITY RESET lamp lights).
(3) Momentarily pressing PARITY RESET switch turns off alarm and light.
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