User's Manual

FlexWave
®
Prism Remote Unit and RF Module Installation Guide FWPP-504-02
Page 74 © May 2017 CommScope, Inc.
Install the Prism Remote Unit
Power Consumption Tables
ThePRUpowersuppliesare>80%efficient,bothACandDCversions.ThedatainTable22andTable23on
page75andthepower-supplyefficienciescan
beusedtoestimatetheinputcurrentforagivenPRU
configuration.Usethefollowinge
quationtocalculatetheinputcurrentdraw:
Input Current = (Total Power Consumption / 0.80) / Input Voltage
Forexample,foraPRUwith1SeRFModule,1SFP(36WTypical,38
WMax),andasingle20W850/1900HDMRF
Module(250WTypical,330WMax),thentheTotalPowerConsumptionwouldbe286W(Typical)and368W
(Max).Therefore,fora110VACinput,thecurrentestimatewouldbe3.25amps(Typical)and4.18amps(Max).
Table 22. SeRF Module Power Consumption
SeRF Module
Power Consumption per Module
Nominal (W) @ 25C Maximum (W)
SeRF Module (1 SFP) [add 1.25W for each SFP added] 36 38