Cisco Systems Catalyst 2955 Manual De Usuario
Chapter 2 Overview
Front-Panel Description
2-8
Catalyst 2955 Hardware Installation Guide
78-14944-03
100BASE-FX Ports
The 100BASE-FX ports on the Catalyst 2955C-12 use 50/125- or
62.5/125-micron MM fiber-optic cabling. In full-duplex mode, the MM
fiber-optic cable length from a switch to an attached device cannot exceed
6562 feet (2 kilometers).
62.5/125-micron MM fiber-optic cabling. In full-duplex mode, the MM
fiber-optic cable length from a switch to an attached device cannot exceed
6562 feet (2 kilometers).
For MM connections, you can connect a 100BASE-FX port to a port on a target
device by using one of the MT-RJ fiber-optic patch cables listed in
device by using one of the MT-RJ fiber-optic patch cables listed in
. Use the Cisco part numbers in
to order the patch cables that
you need.
100BASE-LX Ports
The 100BASE-LX ports on the Catalyst 2955S-12 use 9/125-micron SM
fiber-optic cabling. The cable length from a switch to an attached device cannot
exceed 9.375 miles (15 kilometers).
fiber-optic cabling. The cable length from a switch to an attached device cannot
exceed 9.375 miles (15 kilometers).
.
Use the Cisco part numbers in
Power and Relay Connector
The power and relay connector provides wire connections to the switch for DC
power and configurable alarms (see
power and configurable alarms (see
). The power and relay connector
is to the right of the uplink ports on the faceplate.
Figure 2-6
Power and Relay Connector
104353
RT A1
A2
VB
VA
A1
A2
RT