Cisco Systems 7401ASR manual Attaching the Fast Ethernet/Ethernet 10/100 Cables

Chapter 2 Rack-Mounting, Tabletop Installation, and Cabling

Connecting I/O Cables

Figure 2-11 Console and Auxiliary Port RJ-45 Connectors

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4 5

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1	Auxiliary port	4	Cable to modem or DCE
2	Console port	5	Cable to console terminal or DTE
3	RJ-45 connector

Connecting Native Gigabit Ethernet and Fast Ethernet/Ethernet Cables

Note See Chapter 3, “Starting and Configuring,” the “Configuring the Native Gigabit Ethernet and Fast Ethernet/Ethernet Interfaces” section on page 3-15, for information on configuring and troubleshooting the Gigabit Ethernet and Fast Ethernet/Ethernet interfaces.

The Cisco 7401ASR router has two Ethernet interfaces and four physical Ethernet ports, two RJ-45 (10/100 Mbps) ports and two Gigabit Ethernet (1000 Mbps) ports. Only two of the four ports can be in use at any one time.

There are two PCI buses. One Gigabit Ethernet (1000) port and one Fast Ethernet RJ-45 (10/100) port are on the PCI bus 1. The port adapter slot, one Gigabit Ethernet (1000) port, and one Fast Ethernet RJ-45 (10/100) port are on PCI bus 0.

Attaching the Fast Ethernet/Ethernet 10/100 Cables

The RJ-45 ports support IEEE 802.3 (Ethernet) and IEEE 802.3u (Fast Ethernet) interfaces compliant with 10BASET and 100BASETX specifications.

The RJ-45 port supports standard straight-through and crossover Category 5 unshielded twisted-pair (UTP) cables with RJ-45 connectors. Cisco Systems does not supply Category 5 UTP cables; these cables are available commercially.

See Appendix A, “Specifications,” for Fast Ethernet RJ-45 port specifications.

Intra-Building Lightning Protection

Shielded cables, which are grounded at both ends are required to be used on the 10/100 Ethernet port in order to be in compliance with requirement R4-11 in GR-1089-Core for a Central Office environment. This is not a requirement for customer premise installations.

	Cisco 7401ASR Installation and Configuration Guide
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