User's Manual

Table Of Contents

Install the RAUs and Antennas

Page 12 InterReach Spectrum Remote Access Unit Installation Guide

Dothefollowing,intheorderpresented,tomounttheRAUsandantennas:

1 MountallMRAUandSRAUsinthelocationsmarkedonthefloorplans.

2 Installthepassiveantennasaccordingtothemanufacturer’sinstallationinstructions.

NOTE: It is common practice to  install passive antennas below the ceiling. If you install a passive

antennaabovetheceiling,whenestimatingtheantennacoveragearea,accountforadditional

lossduetotheceilingmaterial.

3 Connectapassivemulti‐bandantennatotheNconnectoroneachRAUusingcoaxialcable

withtheleastamountoflosspossible.(See

“AppendixC:OmniAntenna”onpage27for

informationontheOmniAntennaports.)

CAUTION! Firmlyhand‐tightentheNconnector.DONOTover‐tightentheconnector.

ConnecttheIFEUtotheMRAU

NOTE: The IFEU should be powered up before starting this  procedure; see the InterReach Spectrum

ExpansionModuleGroupInstallationGuide(TECP‐77‐167).

4 FollowtheserulesfortheCATVcableswhenconnectingtheIFEUtotheMRAU:

• TheFWDandREVcablesshouldbeclosetothesamelength.

• TheFWDandREVcablesshouldbethesamecabletype(bothRG6orbothRG11).

• ApairofCATVcablesconnectseachMRAUtotheIFEU.TheIFEUREVModuleIFINport

andtheIFEUFWDModuleIFOUTportmustmatch.Forexample,ifIFEUREVModuleIF

INPort3isused,useIFEUFWDModuleIFOUTPort3.

• Referto“AppendixB:75‐OhmCATVCable”onpage22forinformationonmaximumRG‐6

orRG‐11CATVcablelengths.

5 TestthecableterminationforeachCATVcablebeforeinstallingit.

Omni Antenna

False Ceiling

SRAU

REV IF OUT REV SECONDARY PORTS

1 2 3

FWD SECONDARY PORTS

1 2 3

FWD IF IN

LINK STATUS

SECONDARY

REV

SECONDARY

FWD

MRAU

Coaxial cable