Installation and Operation Manual

Confidential & Proprietary 25/57 Alliance-TR
2) Remote Power Supply Unit (RPSU)
The RPSU is available with AC or DC power options. AC input power should be 110/220VAC. For DC input
power should be -48VDC. The output power for AC and DC is +29V.
Figure 4.6 – Remote Power Supply Unit
Functions:
 Providing a circuit breaker to turn AC power ON/OFF
 Providing DC power to each HRDU
 Providing DC power and signal to FAN tray
 LED indicators to display PSU alarm staus
Caution
DOUBLE POLE/NEUTRAL FUSING