Cisco Systems 3550 Connecting a Cisco RPS, Connecting to the 10/100 and 10/100/1000 Ports, 2-17

Chapter 2 Switch Installation

Powering the Switch and Connecting Devices

Connecting a Cisco RPS

Use the cable supplied with the RPS to connect to the switch rear panel. Connect the switch and the RPS to the same AC power source. Always put the RPS in standby mode when you connect devices to it and in active mode during normal operation.

Note Make sure to connect the switch and the RPS to the same AC power source.

You can connect the Cisco RPS 300 (model PWR300-AC-RPS-N1) to these switch models:

•Catalyst 3550-12T, 3550-12G, 3550-24, 3550-FX, or 3550-48 switch. (The Cisco RPS 300 does not support the Catalyst 3550-24-DC or 3550-24PWR switch.)

Warning Attach only the Cisco RPS (model PWR300-AC-RPS-N1) to the RPS receptacle. Statement 100B

You can connect the Cisco RPS 675 (model PWR675-AC-RPS-N1) to these switch models.

•Catalyst 3550-12T, 3550-12G, 3550-24, 3550-FX, 3550-24PWR, or 3550-48 switch. (The Cisco RPS 675 does not support the Catalyst 3550-24-DC switch.)

Warning Attach only the Cisco RPS (model PWR675-AC-RPS-N1) to the RPS receptacle. Statement 100C

Connecting to the 10/100 and 10/100/1000 Ports

Caution To prevent ESD damage, follow your normal board and component handling procedures when connecting to the Ethernet ports.

Use the guidelines in Table 2-1to select the correct cable for connecting the switch 10/100 and 10/100/1000 ports to other devices. See the “Cable and Adapter Specifications” section on page B-3for cable-pinout descriptions.

Table 2-1 Recommended Ethernet Cables

Device	Crossover Cable1	Straight-Through Cable1
Switch to switch	Yes	No
Switch to hub	Yes	No
Switch to computer	No	Yes
or server
Switch to router	No	Yes
Switch to IP phone	No	Yes

1.100BASE-TX and 1000BASE-T traffic requires twisted four-pair, Category 5 cable. 10BASE-T traffic can use Category 3 or Category 4 cable.

Catalyst 3550 Switch Hardware Installation Guide

OL-6155-01 2-17