Cisco 7246 - uBR Router Hardware Installation Manual page 40

Hardware Component Descriptions
These documents are available on Cisco.com at the following URL:
http://www.cisco.com/univercd/cc/td/doc/product/cable/cab_rout/cfig_nts/index.htm
These documents are also available on the Documentation DVD-ROM.
A handle on the AC-input and DC-input power supply units provides a grip point for removing and
replacing the power supply.
Figure 1-10 on page 1-23
screws secure the power supply to the chassis and seat the power supply in the router midplane. A Power
OK LED indicates that the power supply is delivering +5 VDC to the router midplane.
The AC-input power supply has a receptacle for an AC-input power cable. A modular power cable
connects the AC-input power supply to the site AC power source. A cable-retention clip secures the
power cable to the AC-input power supply.
The AC-input power supply has an electrical current rating of 7A for the Cisco uBR7246 and Cisco
Note
uBR7246VXR routers.
Figure 1-9
Captive installation screw
The DC-input power supply has a receptacle for two DC-input power leads. Three M5 grounding
receptacles are located on the front of the DC-input faceplate to provide connection for a ground lead.
A ground lead should be installed on two of the receptacles; using either the two receptacles that are
aligned vertically or the two receptacles that are aligned horizontally. A cover is attached to two
strain-relief studs on the power supply faceplate to secure the DC-input power leads running behind the
cover.
Each DC-input power supply has an electrical current rating of 14A, 700 VA. Use a minimum of
Note
12 AWG (4 mm
The power input must be protected by a 20A circuit breaker or fuse that is in compliance with your local
Caution
electric regulations.
Cisco uBR7200 Series Universal Broadband Router Hardware Installation Guide
1-22
(Figure 1-9 on page 1-22
shows the faceplate of the DC-input power supply.) Two captive installation
Cisco uBR7246 and Cisco uBR7246VXR AC-Input Power Supply
Cable-retention clip
AC-input receptacle
2
) wire for the input to each DC-input power supply.
Chapter 1
shows the faceplate of the AC-input power supply.
Power switch Handle
Cisco uBR7200 Series Overview
OL-5421-03