18
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 below.
Figure 7.
Model 1082/I twisted pair line interface
5.2 CONNECTING 10BASE-T ETHERNET PORT TO PC (DTE)
The 10Base-T interface is configured as DTE (Data Terminal Equip-
ment). If the Model 1088 is to to connect to another DTE device such as
a 10Base-T network interface card, construct a 10Base-T crossover
cable and connect the wires as shown in Figure 8.
Figure 8.
Connecting 10Base-T Ethernet port to PC
5.3 CONNECTING 10BASE-T ETHERNET PORT TO HUB (DCE)
The 10Base-T interface is configured as DTE (Data Terminal Equip-
ment), just like a 10Base-T network interface card in a PC. Therefore, it
“expects” to connect to a 10Base-T Hub using a straight-through RJ-45
cable. Figure 9 shows how to construct a cable to connect the 10Base-T
interface to a 10Base-T Hub.
Figure 9.
Connecting the 10Base-T interface to a 10Base-T Hub
10Base-T DTE
RJ-45 Pin No.
1 (TD+)
2 (TD-)
3 (RD+)
6 (RD-)
10Base-T Port
RJ-45 Pin No.
1 (TD+)
2 (TD-)
3 (RD+)
6 (RD-)
10Base-T Hub
RJ-45 Pin No.
1 (TD+)
2 (TD-)
3 (RD+)
6 (RD-)
10Base-T Port
RJ-45 Pin No.
1 (TD+)
2 (TD-)
3 (RD+)
6 (RD-)