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
Hub or repeater
5RxD+
6RxD–
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–
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
