Port Connections, Cables, and Pinout Information

This section explains the device’s physical interfaces, and provides information about port connections. Connector types, ports and cables are summarized in Ports, Connectors, and Cables. Copper Cable and Optical Transceiver Diagnostics are supported.

RJ-45 Connections for 10/100/1000BaseT Ports

The 10/100/1000BaseT ports are copper twisted-pair ports.

To establish a link for the twisted-pair ports, Tx pair on one cable end must be connected to the Rx pair on the other cable end, and vice versa. If the cabling is done such that Tx on one end is wired to Tx on the other end, and Rx is wired to Rx, a link is not established.

When selecting cables to connect the device ports to their networking peers, straight through cables must be used to connect the device to a station, and crossover cables must be used to connect one transmission device (switch or hub) to another. Both the straight through and crossover cables are category 5.

After a port is connected, its LINK indication LED is lit.

Table 3-1. Ports, Connectors and Cables

Connector

Port/Interface

Cable

 

 

 

RJ-45

10/100/1000BaseT Port

Cat.5

 

 

 

The RJ-45pin number allocation for the 10/100/1000BaseT ports is listed in the table following.

Table 3-2. RJ-45 Pin Number Allocation for 10/100/1000BaseT Ethernet Port

Pin No

Function

1TxRx 1+

2TxRx 1-

3TxRx 2+

4TxRx 2-

5TxRx 3+

6TxRx 3-

7TxRx 4+

8TxRx 4-

Dell PowerConnect 28xx Systems User Guide

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Dell 28XX manual Port Connections, Cables, and Pinout Information, RJ-45 Connections for 10/100/1000BaseT Ports