Instruction manual

C-Bus By Demand 3
Training Manual 16
2.1.2 C‐BusNetworkExtender
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TheremaybeinstancesinacommercialC‐Bus i n stallation,whereoneofthefundamentalC‐Bus
operatingparametersisexceeded.Theseparametersmaybe:
 • morethan100C‐Busunits
 • morethan2AmpsofC‐BusCurrent
 • morethan1kmofC‐BusCAT5cable
 • morethen255GroupAddresses.
Itiswhenoneoftheseparametersisexceeded,thatyouwillstill
needtoextendthenetwork.By
usingaNetworkBridgetocreateanothernetwork,youwillbeabletocreatetheappearancethat
thereisonelargeC‐Busnetworkfortheareainquestion.Thismeansthattotheaverageperson,
itwillappearthat:
 • thereismorethan100C‐Busunits
 • thereismorethan2AmpsofC‐Buscurrent
 • thereismorethan1km’
sofC‐BusCAT5Cable.
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2.1.3 C‐BusCommandFilter
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Oneofthelesser‐knownfeaturesoftheNetworkBridgeisthefilteringcapability.Inthe
NetworkBridgeprogramminginterface,youwillfindtheparametercalled‘Connect
Applications.’
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ThisparametergivesyoutheoptionsofselectingoneoftwouniqueApplicationAddressesor
AllApplicationAddresses(whichisthedefaultsetting).TheAppl
icationAddressesthatare
selected,areallowedtoberoutedthroughtheNetworkBridge.ThebenefitoffilteringC‐Bus
commandspresentsitself,onmultiplenetwork
installations,wheremanydifferentApplication
Addressesareused.
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If all Group Addresses on all Application Addresses are being routed across the Network
Bridge, then there will be a lot of C‐Bus traffic. By filtering Applications you can minimise the
amountofC‐BustraffictotheGroupAddresseson1or2ApplicationAddressesonly.
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