Tynetec Advent xt - Network Wiring Requirements

DocNo.FM0410issueM‐1Page8
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MODULE
STATUS
OFFSITE
REMOTE
OFFSITE
LOCAL
BT LINE FAULT
FAULTS EXIST
ONSITE
PRINTER
ADVENT xt
CONTROLLER
MANAG ER
CALLPOINT
MANAGER
NETWORK
RECEIVER
LAST
INTERCOM
CONTROLLER
ADVENT xt
ADVENT xt
CONTROLLER
CUT
CUT
NEW LEG
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4.NETWORKWIRINGREQUIREMENTS
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AbasicAdventxtsystemrequiresaminimumof4twistedpairscommontoallintercomunits ‐ifpublicaddress(PA)or
doorentrytelephonesarespecifiedthen5twistedpairsarerequired.
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Onnewinstallationsa6pairCW1308BTspeccableisrecommended.Planthenetworkroutetominimisecablelength
usingtheintercomunitstojointthecabletherebyavoidingadditionaljointboxesincorridorsorroofareasetc.Onlarge
installationsthenetworkshouldbesplitintotwoorthreesmalle rlegstoreducetheeffectofvoltagedropandaidfuture
service/faultfinding.Thenetworkcablelengthshouldnotexceed1200metresandthetotalnumberofnetworkdevices
shouldnotexceed255.Adatarepeater(P/No.ZXT340)isavailableforextremecases.
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Singleauxiliarydevicessuchasthestatusmodule,managercallpoint,networkreceivers,etc.canbeconnectedtothe
systemnetworkwiringasshownabove.
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Toeliminatethepossibilityofdatareflectionsandcorruptionthenetworkshouldneverbesplitintomultiplelegsfroma
mid‐pointinthewiring;smallgroupsofintercomsspurredoff atanypointshouldalsobeavoided.
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Ifanexistingsitewiringnetworkhasspursofintercomstheyshouldeitherbeintegratedintothemainlooporisolatedand 
connectedbackseparatelytothecontrollerasadditionallegs.
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Detailedsiteplansandexistingwiringdetailsareimperativebeforedesigninganinstallation.
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