User Manual

Table Of Contents

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

Multiple bands

Theflexibilityofthesystemallowsforupto4bandsinoneremoteforthelowandmediumpowerremoteunits.The

high‐powerversionallows2bandsinthesamechassis,mainlybecausethepoweramplifiersaremorebulky.

Thisme

ansthatitisveryeasytodeployasystemfordifferentbands.Thefiber linkisultrawidebandandcanbe

usedbetween88MHzupto2700MHzthuscoveringfromtheVHFendofthespectrumuptothelatestLTEbands.

Eachbandnee

dstohavetheirseparateBIUintheMasterUnit.Theuplinkanddownlinksignalscanthenbe

combinedinthePOIormaybeseparateallthewayintotheFOI.TheFOIhastwoinputsandoutputsandcanthus

beconnectedtotwobandsdirectly.

Figure 16 Dual Band System Connection Diagram

900MHz

1800MHz

BIU

FOI

FOI RU

POI

Figure16

showstwoBIUcardsinterfacingwithtwoRadioBaseStations.Inthiscasetheycouldbea900GSM

stationandone18

00GSMstationasanexample.Itcouldinfactbeanycombinationofserviceandfrequencyband

suchasLTE‐900orWCDMA850.