TM 1–1520–238–T–3
9–5
9–15 SIGNAL NAME:
LH FAB MRTU TYPE I STATUS WORD TERMINAL FLAG
MEMORY LOCATION: 001062
MEMORY DATA BIT(S):
19
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates PASS or FAIL status of MRTU internal self–tests.
REMARKS: From LH FAB MRTU Type I to FCC.
PASS:
If first digit on HOD is 0, 2, 4, or 6, go to paragraph 9–23.
FAIL: Location of fault: go to paragraph 9–16.
9–16 SIGNAL NAME:
LH FAB MRTU TYPE I STATUS WORD BBC STATUS BIT
MEMORY LOCATION: 001062
MEMORY DATA BIT(S):
18
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates self–test status of BBC.
REMARKS: From LH FAB MRTU Type I to FCC.
PASS:
If first digit on HOD is 2 or 6, go to paragraph 9–17.
FAIL: Location of fault: MUX FAB L circuit breaker, wiring from MUX FAB L circuit breaker to LH FAB
MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–17 SIGNAL NAME:
LH FAB MRTU TYPE I STATUS WORD OUTPUT CLEAR
MEMORY LOCATION: 001062
MEMORY DATA BIT(S):
17
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates all MRTU outputs are cleared.
REMARKS: From LH FAB MRTU Type I to FCC.
PASS:
If first digit on HOD is 6, go to paragraph 9–18.
FAIL: Location of fault: MUX FAB L circuit breaker, wiring from MUX FAB L circuit breaker to LH FAB
MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–18 SIGNAL NAME:
LH FAB MRTU TYPE I STATUS DISCRETE OUTPUT BIT
MEMORY LOCATION: 001062
MEMORY DATA BIT(S):
16
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates self–test status of 5 VDC discrete outputs.
REMARKS: From LH FAB MRTU Type I to FCC.
PASS:
If second digit on HOD is 1, 3, 5, or 7, go to paragraph 9–19.
FAIL: Location of fault: MUX FAB L circuit breaker, wiring from MUX FAB L circuit breaker to LH FAB
MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
9–19 SIGNAL NAME:
LH FAB MRTU TYPE I STATUS DC ANALOG OUTPUT BIT
MEMORY LOCATION: 001062
MEMORY DATA BIT(S):
15
(BINARY)
CONDITION:
(None)
SIGNAL FUNCTION:
Indicates state of output DC analog circuits.
REMARKS: From LH FAB MRTU Type I to FCC.
PASS:
If second digit on HOD is 3 or 7, go to paragraph 9–20.
FAIL: Location of fault: MUX FAB L circuit breaker, wiring from MUX FAB L circuit breaker to LH FAB
MRTU Type I, LH FAB MRTU Type I. Troubleshoot wiring to isolate fault
(TM 9–1230–476–20–2).
