Cisco 7609-S Installation Guide - Page 43
Site Preparation Checklist - dc power supply
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Chapter 2 Preparing for Installation Site Preparation Checklist Table 2-5 AC-Input Power Cord Options Locale Description 2500W Power Supply (WS-CAC-2500W=) North America (nonlocking) 12 AWG, 16A/250V North America (locking) 12 AWG, 16A/250V Europe 2.5 mm, 16A/250V International 2.5 mm, 16A/250V Product Number CAB-AC-2500W-US1= CAB-AC-C6K-TWLK= CAB-AC-2500W-EU= CAB-AC-2500W-INT= DC-Powered Systems Basic guidelines include the following: • Each chassis power supply should have its own dedicated input power source. • The circuit must be protected by a dedicated two-pole circuit breaker. The circuit breaker should be sized according to the power supply input rating and local or national code requirements. • The circuit breaker is considered the disconnect device and should be easily accessible. • The power supply ground should connect to protective earth ground even though the system ground connection is provided. • The DC return is to remain isolated from the system frame and chassis (DC-I). Site Preparation Checklist Table 2-6 lists the site planning activities that you should perform prior to installing the Cisco 7609 Internet Router. Completing each activity helps ensure a successful switch installation. OL-5079-04 Cisco 7609 Internet Router Installation Guide 2-11
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