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The RJ-45 connector on the Model 1082’s twisted pair interface is polar-
ity insensitive and is wired for a two-wire interface. The signal/pin rela-
tionships are shown in Figure 7.
Figure 7.
Model 1082 twisted Pair line interface
The RJ-45 connector for connection to the 64 kbps co-directional inter-
face is pre-wired according to the signal/pin relationships shown in
Figure 8.
Figure 8.
Model 1082 co-directional interface
1 (N/C)
2 (N/C)
3 (N/C)
4 (2-Wire TIP)
5 (2-Wire RING)
6 (N/C)
7 (N/C)
8 (N/C)
1
2
3
4
5
6
7
8
Pin Signal Name Direction Function
(In reference to 1082)
1 RD(R) IN Receive data in (ring)
2 RD(T) IN Receive data in (tip)
3 Not used
4 TD(R) OUT Transmit data out (ring)
5 TD(T) OUT Transmit data out (tip)
6 Not used
7,8 Not used
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
(RX) Receive (Ring)
(RX) Receive (Tip)
Shield
(TX) Transmit (Ring)
(TX) Transmit (Tip)
Shield
No connection
No connection
Signal NameRJ-48C Jack