Cisco PA-2FE-TX Specifications download pdf (Page 10)

12E/2FE Port Adapter Receptacles, Cables, and Pinouts

PA-12E/2FE Ethernet Switch 10BASE-T and 100BASE-TX Port Adapter Installation and Configuration

1-4

Figure 1-3 12E/2FE RJ-45 Connections, Plug and Receptacle

Warning

To avoid electric shock, do not connect safety extra-low voltage (SELV) circuits to

telephone-network voltage (TNV) circuits. LAN ports contain SELV circuits, and WAN ports

contain TNV circuits. Some LAN and WAN ports both use RJ-45 connectors. Use caution when

connecting cables.

Table 1-2 12E/2FE RJ-45 Connector Pinout

Note Referring to the RJ-45 pinout in Table 1-2, proper common-mode line terminations should be

used for the unused Category 3 and Category 5, UTP cable pairs 4/5 and 7/8. Common-mode

termination reduces electromagnetic interference (EMI).

Depending on your 12E/2FE RJ-45 interface cabling requirements, use the pinouts shown in

Figure 1-4 and Figure 1-5 for straight-through and crossover twisted-pair cable connections.

Figure 1-4 Straight-Through Cable Pinout, 12E/2FE RJ-45 Connection to an End Station

Pin Description

1 Receive Data + (RxD+)

2 RxD–

3 Transmit Data + (TxD+)

6 TxD–

H2936

8 7 6 5 4 3 2 1

RJ-45 connector

End stationEthernet port

3 TxD+

6 TxD–

1 RxD+

2 RxD–

3 RxD+

6 RxD–

1 TxD+

2 TxD–

H10416

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 59 60

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Cisco PA-2FE-TX Specifications Page 10