NetWorth Micro 100-TX24, Руководство пользователя

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Straight-through twisted-pair cable is typically used to connect a repeater to a server or workstation. In a
straight-through connection, Pin 1 at the repeater connects to Pin 1 at the server, Pin 2 at the repeater connects to Pin 2
at the server, and so on. Figure 2-1 shows the locations of pins on a standard RJ-45 plug on a twisted-pair cable.
Tables 2-1 and 2-2 show the wiring in a straight-through and crossover twisted-pair cable.
Twisted Pair
No.
Pin No.
Signal
Description at DTE
To Pin No.
Signal
Description at
Repeater
1
1
2 TD+
TD–
à
1
2 RD+
RD–
2
3
6 RD+
RD–
à
3
6 TD+
TD–
Twisted Pair
No.
Pin No.
Signal
Description at DTE
To Pin No.
Signal
Description at
Repeater
1
1
2 RD+
RD–
à
3
6 TD+
TD–
2
3
6 TD+
TD–
à
1
2 RD+
RD–
Twisted-Pair Cable
RJ-45 Plug
1
2
3
6
Pins
Figure 2-1: RJ-45 Plug Pin Locations
Table 2-1: Wiring in a Straight-Through Twisted-Pair Cable
Table 2-2: Wiring in a Crossover Twisted-Pair Cable
Planning Repeater Installation Installation Requirements
2 - 3