Dell Force10 E600i E600 TeraScale Installation Guide - Page 22
AC Power Supply Units, power to the system
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www.dell.com | support.dell.com AC Power Supply Units The 2500W AC Power Supply Unit is capable of operating at either 100 VAC or 220 VAC. If the system is connected to a 100 VAC power supply, each unit provides up to 1500W, and three power supply modules are required to power the system; four power supply units are required for power supply redundancy. If the system is connected to a 220 VAC power supply, two power supply units are required for providing power to the system, three power supply units are required for power supply redundancy, and four power supply units are required for full facility redundancy. Full facility redundancy requires two independent power sources (feeds) with two power supplies on each feed. Each independent power source should have a dedicated circuit breaker sized in accordance with your local electrical codes. CAUTION: Before removing and replacing a power supply unit, determine if the E600i is in full redundancy or non-redundant mode. Operating in non-redundant mode will require a complete system power off when removing and replacing a power supply. NOTE: Do not mix power supplies. Installing a 2500W-AC2 power supply into a chassis with 2500W-AC power supplies already installed may result in unpredictable behavior. FTOS version 8.3.1.2 and later will declare an alarm when the PSUs are mixed. Figure 6-2. AC Power Supply Unit Handle Status LED Green Power On Amber Fault Power Switch Thumb Screw Power Cord Socket Locking Screws (2) Cord Retainer 22 | Power Supply