Chapter 2 Preparing for Installation

Power Connection Guidelines

AC-Powered Systems

Basic guidelines include the following:

Each chassis power supply should have its own dedicated branch circuit.

For North America, the circuit breaker should be rated 20A for the 2500W power supply and 30A for the 4000W power supply. For everywhere else, the circuit breaker should be sized according to the power supply input rating and local or national code requirements.

If you are using a 200/240 VAC power source in North America, the circuit must be protected by a dedicated two-pole circuit breaker.

The source AC outlet must be within 6 feet (1.8 meters) of the system and should be easily accessible.

The AC power receptacles used to plug in the chassis must be the grounding type. The grounding conductors that connect to the receptacles should connect to protective earth ground at the service equipment.

Two types of AC-input power supplies are available:

2500W—Figure2-1shows the different styles of 2500W AC-input power cord plugs that are available for North America or various international locales. Figure 2-1also shows the appliance coupler that is attached to the other end of the 2500W power supply power cord. Table 2-5lists the AC-input power cord options and Cisco product numbers.

4000W—Figure2-2shows the two different styles of AC-input power cord plugs that are available for North America and international locales. Unlike the other power supplies, the 4000W power supply power cord is hardwired to the power supply and cannot be removed.

 

 

Cisco 7609 Internet Router Installation Guide

 

 

 

 

 

 

OL-5079-04

 

 

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Cisco Systems 7609 manual AC-Powered Systems