MIL-PRF-62488A(AT)
J508
J504
OPTIONAL EXTERNAL
POWER
A
GND
J501
( U S E D WHEN
C
+V
R A D I O S DO NOT
KEY 1
D
GND
A
FURNISH POWER)
KEY 2
E
+ 2 4 VDC NOM
KEY 3
F
B
FROM RADIO
KEY 4
H
TO
RCVR 1
J
C
TO
CREW
MIKE 1
K
RADIO
CONTROL
M
RCVR 2
K
RCVR AUDIO
SET
UNIT
MIKE 2
N
#1
INTERCOM
R
KEY TO RADIO
S
RCVR 4
S
RCVR 3
T
T
KEY FROM RADIO
MIKE 3
U
MIKE 4
V
MIKE
U
B
{
U S A G E AS
L
REQUIRED
P
J503
J505
}
{
TO
SAME
TO
RADIO
J501
AS
S A M E AS
CREW
SET
J504
CONTROL
#2
UNIT
J506
J509
{
}
TO
SAME
TO
RADIO
J501
AS
SAME AS
CREW
SET
J504
CONTROL
#3
UNIT
J507
J511
}
{
TO
SAME
RADIO
TO
J501
S A M E AS
LINE
AS
SET
CREW
AMPLIFIER
J504
#4
CONTROL
UNIT
AUDIO
SIGNAL
GND
WIRE LINE
AUDIO INPUT
FIGURE 2. Distribution unit electrical interface.
7
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