MIL-DTL-38449D
In classes 3 and 4, pin 6 also carries the audio intercommunication signals to and from
1/
the induction coils.
2/
Conditions are for class 1 and 2 units only. Pin 9 is used for the intercommunication
(audio) input for the classes 3 and 4.
Voltage is applied in the override mode to pin 11 in classes 3 and 4 only.
3/
4/
Initial application of power sets the amplifier to READY.
5/
Momentary interruption of input power to pin A/1 resets the amplifier to READY.
6/
Closing an external circuit between pin F/6 and pin E/5, or applying the first input pulse
to pin F/6 shall cause amplifier to go to the CONTACT state.
7/
With the amplifier in the CONTACT position, closing an external circuit between pin F/6
and pin D/4 or applying a signal pulse to pin F/6 shall cause the amplifier to go into
DISCONNECT.
Pin 10 is for push-to-talk for class 4 only (see 3.5.1.8).
8/
9/
Reverse voltage protection (diodes) shall be provided internally on all applicable outputs
for class 3 and 4. Class 1 and 2 shall use external reverse voltage protection.
3.5.1 Intercommunication amplifier design (classes 3 and 4 only).
7
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business