Cisco 585-LRE - 585 LRE Customer Premise Equipment Bridge, Руководство пользователя

Страница: 109 / 138

A-3
User Guide for the Catalyst Express 500 Switches
OL-8122-01
Appendix A Reference
Cabling Guidelines
Cabling Guidelines
This section describes the cabling guidelines and port connections.
Ethernet Port Connections
For copper Ethernet ports, cable lengths from the switch to connected devices
must be within 328 feet (100 meters).
Use either straight-through or crossover Category 5 cables with RJ-45 connectors
to connect from the switch Ethernet ports to other devices.
Use Category 5 cables for 100BASE-TX and 1000BASE-T traffic. Use
Category 3 or Category 4 cables for 10BASE-T traffic.
SFP Module Port Connections
For the SFP module port connections, Table A-2 lists the cable specifications.
Each port must match the wave-length specifications on the other end of the cable,
and for reliable communications, the cable must not exceed the stipulated cable
length.
Dimensions
(H x W x D) 1.73 x 17.5 x 9.9 in. (4.39 x 44.45 x 25.15 cm) for Catalyst Express
500-24TT, Catalyst Express 500-24LC, and Catalyst Express 500G-12TC
1.73 x 17.5 x 14.4 in. (4.39 x 44.45 x 36.58 cm) for Catalyst Express
500-24PC
Acoustic noise ISO 7770, bystander position: Operating to an ambient temperature of 30ºC
Catalyst Express 500-24TT, 500-24LC, 500G-12TC: 40 dBa
Catalyst Express 500-24PC: 48 dBa
1. Only on Catalyst Express 500-24PC switch.
Table A-1 Technical Specifications for the Catalyst Express 500 Switches (continued)
Specification Description