Cisco 3550 - Manual (Page 65)

C-1
Catalyst 3550 Multilayer Switch Hardware Installation Guide
OL-6155-01
A P P E N D I X
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 2-5 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-1
• Grounding the Switch, page C-2
• Wiring the DC-Input Power Source, page C-4
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. Statement 121B
Warning This unit is intended for installation in restricted access areas. A restricted access area can be
accessed only through the use of a special tool, lock and key, or other means of security.
Statement 1017
Warning Ethernet cables must be shielded when used in a central office environment. Statement 171
Preparing for Installation
Locate the ground lug and the two number-10-32 screws on the switch rear panel and the DC terminal
block plug in the DC-switch accessory kit.
Obtain these necessary tools and equipment:
• Ratcheting torque screwdriver with a Phillips head that exerts up to 15 pound-force inches (lbf-in.)
or 240 ounce-force inches (ozf-in.) of pressure
• Panduit crimping tool with optional controlled cycle mechanism (model CT-700, CT-720, CT-920,
CT-920CH, CT-930, or CT-940CH)