TM 11-7025-221-20
2-5. Rear Connector Signal-To-Pin Relationships.
Each of the 12 rear connectors are shown below. Adjacent to each connector is a chart listing the signal
on each connector pin. The "l/O" column of each chart identifies whether the signal is an input (I) or
output (0) signal.
a. Connector J1. Supergroups enter and exit the TD-1337(V)/G through this connector.
J1 Signal-To-Pln Relationship
Signal
Pin
I/O
Mux transmit timing
A
o
Mux transmit timing shield
0
B
Mux transmit data
0
c
Mux transmit data shield
D
0
I
Demux 1 received timing
E
I
Demux 1 received timing shield
F
I
Demux 2 received timing
G
Demux 2 received timing shield
I
H
I
Demux 3 received timing
J
I
Demux 3 received timing shield
K
I
Demux 4 received timing
L
I
Demux 4 received timing shield
M
I
Demux 1 received data
N
I
Demux 1 received data shield
P
I
Demux 2 received data
R
I
Demux 2 received data shield
s
1
Demux 3 received data
T
I
Demux 3 received data shield
u
I
Demux 4 received data
v
I
Demux 4 received data shield
w
--
Not used
x
b. Connector J2. Remote interface signals to/from a standbyTD-1337(V)/G use this connector.
J2 Signal-To-Pin Relationship
Signal
Pin
I/O
NVM 5V supply
NVM 5V load
Not used
Transmitter data
Receiver data
Data terminal ready
Data set ready
Request to send
Clear to send
Ground
Ground
2-3
