Cisco Systems OL-11497-03 manual AC Power Supply PWR-GSR6-AC= AC Power Supply 12000/6-AC-PEM=

Chapter 6 Maintaining the Router

Removing and Replacing AC and DC Power Subsystem Components

Caution Newer, 1900 W DC power supplies require the upgraded PDU. You cannot install a new power supply using the old PDU. If you are replacing an old power supply with the new unit, you must perform a complete upgrade by replacing both power supplies, the PDU, and the blower module if you are required to meet NEBS extended temperature range requirements. This also means that you must shut down the router to perform the upgrade. Notify the system administrator and other appropriate personnel that all routing traffic stops while the upgrade takes place.

Before you attempt to install or replace them (Table 6-1Table6-1), be sure you know your system power supplies and associated PDU.

Table 6-1	Original and Replacement Components
Original Component		Replacement Component
AC Power Distribution Unit (PDU)		AC PDU (12000/6-AC-PDU=)
(GSR6-AC-PDU=)		Required for 1900 W power supplies.
Compatible only with 1400 W power
supplies.
AC Power Supply (PWR-GSR6-AC=)		AC Power Supply (12000/6-AC-PEM=)
Used to replace 1400 W power supplies only.		Used to replace existing power supplies. All power
All power supplies must be 1400 W. Do not		supplies must be 1900 W. Do not mix with 1400 W
mix with 1900 W power supplies.		power supplies.
		If you are upgrading 1400 W power supplies to 1900
		W power supplies, you must also upgrade to the new
		AC PDU (12000/6-AC-PDU=).
		Caution Redundancy in 1400 W power systems
			was not a requirement and used a blank
			filler (MAS-GSR-PWRBLANK=) in
			place of a second power supply to ensure
			EMI compliance. Newer 1900 W power
			supplies require redundancy. You must
			install two power supplies.

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
OL-11497-03		6-15