User's Manual

AW100 Series System Installation Manual
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AirWalk Proprietary and Confidential Page 24 of 54
4.4.2 RU DC Power Distribution Unit (RPSU) [DC powered models only]
The RU RPSU (DC Power Distribution Unit) is equipped with a digital voltmeter and
digital ammeter as shown in Figure 4-13.
Figure 4-13 RPSU DC Power Measurement Indicators (Front View)
The following values are displayed on the front panel.
AW100-DC Out (V) : Internal RU control unit voltage (nominally 12-14V)
RUDC Out (V) : Main system DC voltage (nominally 27-28V)
Main DC In (A) : Overall system current consumption (5-50A, load dependent)
Circuit breakers are also provided for system protection. A master circuit breaker controls
power to the complete IP-RAN unit. Individual circuit breakers are provided for protection
of the main unit and RU amplifier system.
Only DC powered models are equipped with the RPSU DC power distribution module.