Instruction manual

C-Bus By Demand 3
Training Manual 33
2.7 Traffic Considerations
Whendesigningamultiplenetworkprojectusingnetworkbridges,itisextremelyimportantto
considertheamountofC‐Bustrafficbeingsentaroundthenetworks.

2.7.1 DaisyChainConsiderations

Whenusingadaisychainconfiguration,networktrafficisnotusuallymuchofaproblem.This
isduetothe networkbridgedonly beingabletosendcommandstotwonetworks.What must
beconsidereditthespeedofthenetworks.
Reducing the amount of networks in the daisy chain can increase the speed of the
network.

2.7.2 BackboneConsiderations

When using a C‐Bus backbone configuration, network traffic on the C‐Bus backbone must be
takenintoconsideration.Thisisduetoanumberofnetworksroutingalloftheirmessagesback
tothebackbonenetwork,soauserinterfacecancontrolandmonitorthenetworks.
Where possible it may be an option  to use th
e Connect Application option to filter unwanted
applicationsfromcommunicatingtothebackbonenetwork.

2.8 Network Bridge Location
When installing networ
k bridges into a commercial installation, common practise is to install
themintoadistributionboardontheremotenetworkitiscontrolling.
Ifitispossible(dependingontheinstillation)itmaybeworthinstallingallnetworkbridgesinto
acentralloc
ation,thiscouldbeinthebasementofabuildingorariser .Havingallthe
network
bridgesinonelocationwillallowtheinstallationtobeeasilyupgradedinthefuture.
Network Bridges may be swapped over easily with C‐Bus Network Interfaces (CNI’s). By
having the bridges centralised, rewiring to convert the network bridges to CNI’s will be
significantlyreduced.
This location may not suit every application, and is purely a suggestion to future proof
theinstallation.