Cisco Systems VIP-FE-TX/4E manual Receive Data + RxD+

VIP Port Adapter Functions

Table 3 FE-TX RJ-45 Connector Pinout

Pin	Description
1	Receive Data + (RxD+)
2	RxD–
3	Transmit Data + (TxD+)
6	TxD–

Note Referring to the RJ-45 pinout in Table 3, proper common-mode line terminations should be used for the unused Category 5, UTP cable pairs 4/5 and 7/8. Common-mode termination reduces the contributions to electromagnetic interference (EMI) and susceptibility to common-mode sources. Wire pairs 4/5 and 7/8 are actively terminated in the RJ-45, 100BASE-TX port circuitry in the FE-TX port adapter.

Depending on your RJ-45 interface cabling requirements, use the pinouts in Figure 17 and Figure 18.

Figure 17 Straight-Through Cable Pinout, FE-TX RJ-45 Connection to a Hub or Repeater

FEIP

TxD+

TxD–

RxD+

RxD–

Hub or repeater

5RxD+

6RxD–

3 TxD+	H3137
4 TxD–

Figure 18 Crossover Cable Pinout, FE-TX RJ-45 Connections between Hubs and Repeaters

ub or LAN switch

3TxD+

6TxD–

1RxD+

2RxD–

Hub or LAN switch

3TxD+

6TxD–

1 RxD+	H3138
2 RxD–

Depending on the type of media you use between the MII connection on the port adapter and your switch or hub, the network side of your 100BASE-T transceiver should be appropriately equipped: with ST-type connectors (for optical fiber), BNC connectors, and so forth. Figure 19 shows the pin orientation of the female MII connector on the port adapter. The port adapters are field-replacable units (FRUs).

34VIP-FE-TX/4E Installation and Configuration