AT-FH800 Series Installation Guide
17
Port assignments per pin are defined in Table 2, below. Schematics for both
straight and crossover twisted-pair cable are shown in Figure 12 and Figure 13.
Table 2 Port Assignments Per Pin
Figure 12 Schematics for Straight-Through Cable
Figure 13 Schematics for Crossover Cable
Pin Assignment(Station ports 1-12/24 MDI-X)Assignment(Port 12 or 24 MDI)1 Input Receive Data + Output Transmit Data +
2 Input Receive Data - Output Trans mit Data -
3 Output Transmit Data + Input Receive Data +
6 Output Transmit Data - Input Receive Data -
4, 5, 7, 8 Not Used Not Used
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TD +
TD -
RD +
Not Used
TD +
TD -
RD +
Not Used
Not Used Not Used
Not Used Not Used
Not Used Not Used
RD - RD -
RJ45 PIN RJ45 PIN
er IEEE 802.3 specifications
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
TD +
TD -
RD +
Not Used
TD +
TD -
RD +
Not Used
Not Used Not Used
Not Used Not Used
Not Used Not Used
RD - RD -
RJ45 PIN RJ45 PIN
Per IEEE 802.3 specifications