Alcoma ZENITH 80 - Page 42

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MicrowaveradiorelaylinkZENITH80 
 42/52 1.2
Acableconnectedaccordingtothefollowingfigurecanbeusedforthisconnection:
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Figure29 ThedirectconnectionofthemonitoringPC
IfthePCframeisgalvanicallyconnectedwiththepowergrid,thedirectmonitoringofthePCtoODUis
notrecommended. Withregardtopossible transfer ofnoisesignalsfromthe ODUunitto thepowergrid
andtheother
wayroundthisconnectionisonlyanemergencysolutionacceptableforashorttime.
Forservice purposes Alcomadelivers acable ended onone side bythe Canno n  9Fconnector andon
the other by the Cannon 9M and PFL10 connectors, which connects the DCD, RX, TX, DSR, DTR, RTS,
andCTSsignals.ThecableisintendedforatemporaryconnectionofthemonitoringPCwiththemonitoring
processorinODU.
Theminimum4wireconnectionrequirestheRX,RTS,TXsignalsandthesignalgrounding,i.e.,
usingofno.3,4,5,and9pins.
PCserialport
PCsurveilance
Caution:
Pins7‐4and8‐9mayormaynot
beacableconnected
Userinterface