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Section-2 Installation

October 17, 2013

2‐12

WARNING:Disconnectprimarypower priortoservicing. 888‐2693‐004

:

2.9.6 RFSamplesConnection

ConnecttheRFsamplecablesrequiredforpowermeteringandRTAC.

• RFforwardmeteringsample

• RFreversemeteringsample

• RTACPAforwardoutputsample (pre‐filter)

• RTACHPFforwardoutputsample(post‐filter)

Note

The RTAC sample (pre and post filter) should have a -5 dBm (nominal) level at the LPU inputs.

DependingonthedegreeofrackintegrationprovidedbyHarris,someorallofthesesamplesmayalreadybe

connectedwhenthetransmitterarrivesonsite.Cablesforsamplesnotinstalledinthefactoryarenotprovidedand

mustbefabricatedonsitetotherequiredlength.

RefertoWi

ringDiagram,UAXTransmitterforthecorrecttransmitterconfiguration,couplerportvalues,andthe

attenuatorvalues(seetablesonwiringdiagram).Theattenuatorpadsarefurnishedinthetransmitteraccessories

kitandshouldbeinstalledontheproperdirectionalcouplersampleportforcorrectcalibrationlevelsbefore

proceedingfurther.

Inthecas

eofaHarris‐suppliedrack,theseconnectionsaremadeatthecustomerI/Opanelatthetopoftherack

(seeFigure2‐8onpage2‐13).Inthecaseofacustomer‐suppliedrack,theseconnectionsaremadeattherearpanel

oftheLPU(seeFigure2‐7onpa

ge2‐12).

Figure 2-7 RF Samples Connections: LPU Rear

Table2‐5AudioMainL/RJ7&AudioAuxL/RJ8

PinNo. Designation

1 Ground

2 Le

ft+/Mono1+

3 Le

ft‐/Mono1‐

4 Right+/Mono2+

5 Right‐/Mono2‐

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Sharp SD-AT1000W Specifiche Pagina 54