User Manual

Table Of Contents

FiberDistributedAntennaSystem(FiberDAS)

Functional description

OneMFUsuppor

tsseveralmoduleswhichcanbeplacedanywhereintheframeorasacombinationofseveral

differenttypesofunitsinaframe.Thereare16UpositionsintheMFUthatcanbeutilized,eachmoduletypehasa

differentwidth(seeeachmodule’sspecifications)sothenumberofmodul

ethatwillfitinanMFUvaries.OneMFU

canhouse upto4powersuppliesor8basestationinterfacecardsor16fiber‐opticinterfacecards.See

Table1

EachMFUne

edsatlea stonepowersupply,buttheydonotnecessarilyhavetobeplacedintheMFUthatthey

power.QuiteoftenasystemhasmorethanonepowersupplyandtheyareusuallyplacedtogetherinoneMFUfor

easyaccess.EachMFUhastwomolexconnectorstha

tcanbeconnectedtoapowersupply.Thisallowsforaprimary

andaredundantpowersupplytobeconnectedtoittoensureoperationevenifonepowersupplyshouldfail.

TheMFUalsoco

ntainsfansusedtoventilatethe unitshousedintheframe.Thesearehighqualityfansthathavea

highMTBF.

Table 1 MFU Specifications

Parameter Value

Inputvo

ltage 28VDC

Powercon

nector Molex,10Pin

Ethernetco

nnector RJ45

Weight(wi

thoutmodules) 2.5kg

Tem perature ra

nge,Operational 0‐45°C

Width 19Inch

Height 3U

Depth 300mm

Maximumnumberofmodule

ssupported

PSU 4

BIU 8

FOI 16