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MIL-DTL-62545 Module, Standard Electronic ControlThis specification covers the Module, Standard Electronic Control \(MSEC\), a component of Halon 1301 fire extinguishing systems used in military vehicles. The MSEC continuously monitors the system condition. Upon receipt of a fire signal, it issues crew warning and extinguisher discharge commands.

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MIL-DTL-62545E
TABLE IV. OFSA connections (J3) - Continued. 1/
Pin
Function
In/Out
Signal (see table I)
Duration
b
Power to OFSA number 4
Out
15 to 30 V dc
150 mA minimum
15 mA minimum (quiescent)
Return from OFSA number 4
c
Out
Large fire signal from OFSA
Signal A
d
In
Same as Pin C
number 4
Small fire signal from OFSA
Signal A
e
In
Same as Pin C
number 4
BITE signal to OFSA number 4
Signal A
f
Out
5 ms to 4.0 s
Harness signal shield termination.
F
Connect to Pin N of connector J1
within MSEC
Unused
G
Unused
H
Unused
P
Unused
R
Unused
S
Unused
Y
Unused
Z
Unused
a
Unused
g
Unused
h
Unused
j
1/ MSEC connector J3 (to OFSA's), see 3.3.5.
11



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