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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.
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.
RJ-48C Jack
Pin
Signal Name
1
RD(R)
2
RD(T)
3
4
TD(R)
5
TD(T)
6
7,8
1
2
3
4
5
6
7
8
Figure 7. Model 1082 twisted Pair line interface
1
2
3
4
5
6
7
8
Direction
(In reference to 1082)
IN
IN
OUT
OUT
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)
Signal Name
1
(RX) Receive (Ring)
2
(RX) Receive (Tip)
3
Shield
4
(TX) Transmit (Ring)
5
(TX) Transmit (Tip)
6
Shield
7
No connection
8
No connection
Function
Receive data in (ring)
Receive data in (tip)
Not used
Transmit data out (ring)
Transmit data out (tip)
Not used
Not used
17
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