User's Manual

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2) Remote Power Supply Unit (RPSU)
RPSU is provided of 120Vac at input and provide output +28V only singl voltage of DC power
basically. Optionally, RSPU supports battery backup using battery port. Battery operates charge
and discharge function.
Figure 4.6 – RPSU Outer Look
Functions:
 Providing a circuit breaker to turn the power ON/OFF
 Providing a circuit breaker to turn battery ON/OFF
 Providing DC power each RDU using RDU on/off switch
 Providing DC power and signal to FAN tray
 LED indicators for showing alarm staus of PSU
 Door open/close status using Door switch