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Ethernet Connections

On the Cisco 2524 router, there are two Ethernet ports, an AUI port and a 10BaseT port, on

the rear panel of the router. To connect your router to an Ethernet network, you can use

either the Ethernet AUI or 10BaseT port, but not both. The router automatically detects

which port is in use. (If you attempt to use both ports, only the 10BaseT port will work.)

Use the following equipment to connect to the Ethernet AUI port:

•

Ethernet AUI cable connected to a transceiver

•

Ethernet transceiver connected directly to the router's AUI port

The connection to the AUI port can be attached using either a slide-latch or jackscrew

connector.

The distance limitations for the IEEE 802.3 (10Base5 coaxial cable) specification indicate

a maximum segment distance of 1,640 feet (500 m) at a transmission rate of 10 Mbps.

The distance limitations for Ethernet 10BaseT indicate a maximum segment distance of

328 feet (100 m); Ethernet 10Base2 has a maximum segment distance of 607 feet (185 m).

On the Cisco 2525 router, there are two Token Ring ports, a STP port and a UTP port, on

the rear panel of the router.

The distance limitations for the IEEE 802.5 specification indicate a maximum segment

distance of 328 feet (100 m) at a transmission rate of 4 or 16 Mbps for UTP cabling. The

distance limitation is 1,640 feet (500 m) for STP cabling.

Both routers include an asynchronous serial console and auxiliary port. The console and

auxiliary ports provide access to the router either locally (with a console terminal) or

remotely (with a modem). This section discusses important cabling information to consider

before connecting a console terminal (an ASCII terminal or PC running terminal emulation

software) to the console port or modem to the auxiliary port.

Preparing to Install the Cisco 2524 and Cisco 2525 Routers 2-15

Preparing to Connect to a Network