The Agilent HP 5089A Standby Power Supply furnishes dc power to keep frequency or time standard systems operating during extended interuptions of ac line power. For applications where it is essential to maintain continuous operation and avoid loss of precise time, the use of a standby power supply is an absolute necessity. This unit is designed for use with HP Cesium Beam Standards, Rubidum Vapor Standards, Quartz Standard, and other equipment wich will operate from 22 to 28 V dc. No switching is used in transferring power from line to battery operation and back again, thus assuring uninterrupted operation.
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