HP rp5400 Carrier Grade Addendum - rp5400 Series of Servers - Page 31

Installation Connecting the Server to DC Power Source Connecting the Server to DC Power Source rp5400 Series of Servers Carrier Grade Systems contain NEBS-compatible Direct Current (DC) power supplies. These switching power supplies are designed to work on DC power using a DC-to-DC converter module. This DC power supply allows this computer to be powered from a central office -48V or -60V power source. These power supplies provide alarm outputs, in the form of relay contact closures, to indicate a power supply anomaly or failure. A remote control input is provided to the supplies that can be used to reset the server by turning off the power supply(ies). CAUTION This product is for DC operation only. Do not install an AC power module or connect it to an AC power source. Failure to follow this precaution can cause damage to your equipment. CAUTION Ensure that all central office safety precautions are observed when connecting and disconnecting the server power supplies to the DC power source. This product is to be installed only in Restricted Access Areas (dedicated equipment rooms, equipment closets or the like) in accordance with Articles 110-16 to 110-18 of National Electrical Code, ANSI/NFPA 70. Installation should be performed by qualified service personnel only. NOTE The power supply cable connector on the front of the slide tray is used as the main disconnect device for this equipment. CAUTION To protect the equipment from overload or short circuits that may cause equipment damage or fire, the power supply is internally fused. For added safety and integrity at the customer's site, the circuit which supplies DC power to the server should be protected with an appropriate 45 A fuse or circuit breaker. Failure to follow any of these precautions can cause damage to equipment and facilities. Chapter 1 19