Power Supplies - Cisco Router 7204 Installation And Configuration Manual

Physical Description
For a description of OIR, refer to
instructions about how to replace a port or service adapter, refer to the section
or Service Adapter" section on page 6-3
Caution To ensure adequate airflow across the router's port adapters, a port adapter or a blank port adapter must
be installed in each port adapter slot.
Note Detailed instructions for removing, replacing, and configuring the port and service adapter types
supported by the Cisco 7206 are contained in the configuration note for each port and service adapter.
For example, if you plan to replace a PA-A3 enhanced ATM port adapter in your Cisco 7206 router,
PA-A3 Enhanced ATM Port Adapter Installation and Configuration. This document is available on
Cisco.com.

Power Supplies

The Cisco 7204 comes equipped with one 280W AC-input power supply or one 280W DC-input power
supply. You must order the second power supply separately.
Caution Do not mix power supplies in the Cisco 7204. In dual power supply configurations, both power supplies
must be of the same type (two AC-input power supplies or two DC-input power supplies).
Note Detailed instructions for handling and replacing the Cisco 7204 power supplies are contained in the
configuration notes 280-Watt AC-Input Power Supply Replacement Instructions and 280-Watt DC-Input
Power Supply Replacement Instructions. This document is available on Cisco.com.
A handle on the AC and DC power supplies provides a grip point for removing and replacing the power
supply.
of the DC-input power supply.) Two captive installation 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 DC-input power supply has DC-input power leads that are hardwired to a DC-input terminal block.
A cable tie is shipped with each DC-input power supply to secure the leads to the power supply faceplate
and provide strain relief for the leads.
Cisco 7204 Installation and Configuration Guide
1-18
(Figure 1-13 shows the faceplate of the AC-input power supply.
"Online Insertion and Removal" section on page
in "Chapter 6, "Maintaining the Cisco 7204."
Chapter 1 Product Overview
1-25. For general
"Replacing a Port Adapter
Figure 1-14 shows the faceplate
OL-5101-02