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).
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
Table B-1 on
page B-3
. Use the Cisco part numbers in
Table B-1
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).
For SM connections, use one of the connectors listed in
Table B-2 on page B-4
.
Use the Cisco part numbers in
Table B-2
to order the connectors that you need.
Power and Relay Connector
The power and relay connector provides wire connections to the switch for DC
power and configurable alarms (see
Figure 2-6
). 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
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Страница 200: ...Appendix A Technical Specifications A 6 Catalyst 2955 Hardware Installation Guide 78 14944 03 ...
Страница 226: ...Appendix C Translated Safety Warnings Switch Relays Warning C 14 Catalyst 2955 Hardware Installation Guide 78 14944 03 ...
Страница 233: ...C 21 Catalyst 2955 Hardware Installation Guide 78 14944 03 Appendix C Translated Safety Warnings Open Type Equipment ...
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