TM 1–1520–238–T–3
9–8
9–30 SIGNAL NAME:
RH FAB MRTU TYPE I STATUS WORD BBC STATUS BIT
MEMORY LOCATION: 001517
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates self–test status of the BBC.
REMARKS: From RH FAB MRTU Type I to FCC.
PASS:
If first digit on HOD is 2 or 6, go to paragraph 9–31.
FAIL: Location of fault: MUX FAB R circuit breaker, wiring from MUX FAB R circuit breaker to RH
FAB MRTU Type I, RH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–31 SIGNAL NAME:
RH FAB MRTU TYPE I STATUS WORD OUTPUT CLEAR
MEMORY LOCATION: 001517
MEMORY DATA BIT(S):
17
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates all MRTU outputs are cleared.
REMARKS: From RH FAB MRTU Type I to FCC.
PASS:
If first digit on HOD is 6, go to paragraph 9–32.
FAIL: Location of fault: MUX FAB R circuit breaker, wiring from MUX FAB R circuit breaker to RH
FAB MRTU Type I, RH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–32 SIGNAL NAME:
RH FAB MRTU TYPE I STATUS DISCRETE OUTPUT BIT
MEMORY LOCATION: 001517
MEMORY DATA BIT(S):
16
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates self–test status of 5 VDC discrete outputs.
REMARKS: From RH FAB MRTU Type I to FCC.
PASS:
If second digit on HOD is 1, 3, 5, or 7, go to paragraph 9–33.
FAIL: Location of fault: MUX FAB R circuit breaker, wiring from MUX FAB R circuit breaker to RH
FAB MRTU Type I, RH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–33 SIGNAL NAME:
RH FAB MRTU TYPE I STATUS DC ANALOG OUTPUT BIT
MEMORY LOCATION: 001517
MEMORY DATA BIT(S):
15
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates state of output DC analog circuits.
REMARKS: From RH FAB MRTU Type I to FCC.
PASS:
If second digit on HOD is 3 or 7, go to paragraph 9–34.
FAIL: Location of fault: MUX FAB R circuit breaker, wiring from MUX FAB R circuit breaker to RH
FAB MRTU Type I, RH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
