Instruction manual

C-Bus By Demand 3
Training Manual 39
3.5 Network Topology Comparisons
Thefollowingsectionswillidentifythe:
 • AdvantagesOfAC‐BusBackbone
 • DisadvantagesOfAC‐BusBackbone
 • AdvantagesOfAEthernetBackbone
 • DisadvantagesOfAEthernetBackbone

3.5.1 AdvantagesOfAC‐BusBackbone

SomeoftheadvantagesofusingaC‐BusBackboneare:
 • TheC‐BusBackboneallowscommunicationsbetweennetworks,viaNetworkBridges.
 • ThereisnoneedforPCcontrol,sincePAC’sandTouchScreenscancontrolandmonitor
networksacrossNetworkBridges.
 • AC‐Bus Backbone allows the connection of 3
rd
 party systems to the local network (via
PCIorCNI).TheNetworkBridgeswillthenroutecommandstoremotenetworks.
 • A C ‐Bus Backbone is a unique stand‐alone system, with no interference  from other
systemsorEthernetrelatedissues.
 • AC‐BusBackbonecanrunfor1km.
 A C‐Bus Backbone allows HomeGate or Schedule Plus to control and monitor all
networks.

3.5.2 DisadvantagesOfAC‐
BusBackbone

SomeofthedisadvantagesofusingaC‐BusBackboneare:
 • Poor programming may cause excessive traffic on the backbone network, which may
causeproblems.
 • A C‐Bus Backbone may have excessive synchronisation times when scanning multiple
networksthroughasinglePCIorCNI(viaToolkit,SchedulePlusorHomeGate).
 • AC‐BusBackbonehasaslower communications speed,when compared toanEthernet
backbone.
