Cisco 7304 Guide d'installation télécharger pdf (Page 30)

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Cisco 7304 Router Modular Services Card and Shared Port Adapter Hardware Installation Guide

OL-4681-01

Chapter 3 Overview: Cisco 7304 Router Shared Port Adapters

GigabitEthernet SPA Overview

RJ-45 Connectors

The SPA-2GE-7304 router has two RJ-45 ports for 10/100/1000 Ethernet/FastEthernet/GigabitEthernet

connections. The RJ-45 ports support IEEE 802.3ab (Gigabit Ethernet) and IEEE 802.3u (Fast Ethernet)

interfaces compliant with 10BASE-T, 100BASE-TX, and 1000BASE-T specifications.

The RJ-45 ports support standard straight-through and crossover Category 5 UTP cables with RJ-45

connectors. Cisco Systems does not supply Category 5 UTP cables; these cables are available

commercially.

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.

Figure 3-6 shows an RJ-45 connector. Table 3-5 lists the pinouts and signals for the RJ-45 port.

Figure 3-6 RJ-45 Port and Connector

1 RJ-45 connector

Table 3-5 RJ-45 Receptacle Pinouts

Pin GE Signal

1Tx A+

1. TX DATA = Transmit Data

2Tx A–

3Rx B+

2. RX DATA = Receive Data

4Tx C+

5Tx C–

6Rx B–

7Rx D+

8Rx D–

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Cisco 7304 Guide d'installation Page 30