Cisco 2970 Hardware Installation Guide - Page 79

Chapter 2 Installation Figure 2-27 Inserting Terminal Block Into Switch Connecting to a 10/100 Port 74080 CONSOLE BERFEOFREERPOCTOWONEMNRAENCUTAINL G DC INPUT ICNUPRURTE: 3N6T:- 72 4-2A A +- B +- Terminal block plug Tie wrap Connecting to a 10/100 Port The switch 10/100 ports configure themselves to operate at the speed of attached devices. If the attached ports do not support autonegotiation, you can explicitly set the speed and duplex parameters. Connecting devices that do not autonegotiate or that have their speed and duplex parameters manually set can reduce performance or result in no linkage. To maximize performance, choose one of these methods for configuring the 10/100 Ethernet ports: • Let the ports autonegotiate both speed and duplex. • Set the port speed and duplex parameters on both ends of the connection. Follow these steps to connect to 10BASE-T and 100BASE-TX devices: Step 1 When connecting to workstations, servers, routers, and Cisco IP Phones, connect a straight-through Category 5 cable to an RJ-45 connector on the front panel (Figure 2-28). When connecting to switches or repeaters, use a crossover Category 5 cable. Pinouts for the cables are described in the "Cable and Adapter Specifications" section on page B-4. 78-6461-04 Catalyst 2900 Series XL Hardware Installation Guide 2-35