TM 11-7025-221-20
2-5. Rear Connector Signal-To-Pin Relationships - Continued.
c. Connector J3. Conditioned diphase signals to/from a CNCE (group modem) use this connector.
J3 Signal-To-Pln Relationship
Signal
Pin
I/O
Conditioned diphase modem receive
A
I
data
Conditioned diphase modem receive
B
I
data shield
Not used
--
C,D
Conditioned diphase modem transmit
E
0
data
Conditioned diphase modem transmit
F
0
data shield
Not used
G,H
--
I
d. Connector J4 (V3 and V4 models only). This connector is used for CESE telemetry output signals,
input/output signals for 2.4 kb/s ANDVT, and input signals from the DLED.
J4 Signal-To-Pin Relationship - Continued
J4 Signal-To-Pin Relationship
--
Signal
I/O
Pin
Pin
/0
Signal
--
Analog-to-digital voice telephone
o
38
1
32 kHz clock low side
o
transmit timing
0
2
32 kHz clock high side
I
Analog-to-digital voice telephone re-
39
..
Not used
3,4
ceive timing
5
0
CESE data demux 1 low side
.-
Not used
40-47
CESE data demux 1 high side
6
0
DLED clock
48
0
CESE data demux 2 low side
7
0
DLED clock return
49
0
CESE data demux 2 high side
0
8
--
DLED timing
I
50
Not used
9,10
DLED timing return
I
51
11
0
CESE data demux 3 low side
--
Not used
52,53
12
CESE data demux 3 high side
0
DLED data
I
54
13
0
CESE data demux 4 low side
I
DLED data return
55
14
CESE data demux 4 high side
0
--
..
Not used
15-21
Analog-to-digital voice telephone
0
22
transmit data return
Analog-to-digital voice telephone
0
23
transmit data
Analog-to-digital voice telephone re-
I
24
ceive data
..
Not used
25-29
I
Analog-to-digital voice telephone re-
30
ceive data ground
I
Analog-to-digital voice telephone re-
31
ceive timing ground
..
Not used
32-36
Analog-to-digital voice telephone
0
37
transmit timing return
2-4
