Installation guide

C-1
Catalyst 3550 Multilayer Switch Hardware Installation Guide
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APPENDIX
C
DC Power Connections
This appendix describes how to make DC power connections to the
Catalyst 3550-24-DC switch. See the “Installing the Switch” section on page 3-9
for instructions on installing the switch.
Connecting to DC Power
To connect the Catalyst 3550-24-DC switch to a DC-input power source, follow
the steps in these sections:
• Preparing for Installation, page C-2
• Grounding the Switch, page C-2
• Wiring the DC-Input Power Source, page C-5
Warning The Catalyst 3550-24-DC contains no field-replaceable units (FRUs). Do not open
the chassis or attempt to remove or replace any components. For information
about obtaining service for this unit, contact your reseller or Cisco sales
representative.
Warning The equipment is to be installed in a restricted access area.
Warning Ethernet cables must be shielded when used in a central office environment.