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Temaline Solutions

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<strong>Temaline</strong> Specification DataSection 5.1: Access Control <strong>Solutions</strong>Field levelThis is the level where the system interactswith the external world (company employees,visitors, gates, etc.). It comprises readers,displays, keypads, locking devices, digitalsensors, and other devices.LONEnterpriseBuildingsIntegrator(EBI)<strong>Temaline</strong> uses the Echelon communicationbus as the field bus for TemaKeys, TemaPower and I/O devices. Each LONWORKS ®bus can support up to 64 nodes or devices(readers, I/O modules, etc.). As with anyLONWORKS ® communication bus, in a“daisy-chain” configuration, the total lengthof the LON bus cannot exceed 2700 metres.In a “free-topology configuration, the length ofthe total LON bus cannot exceed 500 metres.ETHERNETLANTemaServersEnterpriseBuildingsIntegrator(EBI)SHARED LOADThe purpose of the Shared Loadarchitecture configuration is to enhancesystem availability. The system has thecapability for it to protect itself in the event ofa TemaServer failure, as shown below.This added level of hardware redundancyis achieved using redundant pairs ofTemaServers. During normal systemoperation, each TemaServer manages itsdevices but, should one of the TemaServersfail, the remaining TemaServer takes overthe management of the orphaned deviceswithout any degradation or loss of systemfunctionality.Peer-to-PeerPEER-TO-PEER COMMUNICATIONIn order to maintain high availability andflexibility of the system, the TemaServerscommunicate with one another on a peerto-peerbasis.LONWORKSPeer-to-Peer CommunicationTemaKeysEach TemaServer is continually updatedwith system status regarding employeepresence, number of people present in eachzone, and details for anti-passback controlamongst others.ETHERNETEnterpriseBuildingsIntegrator(EBI)In order to avoid unnecessary informationexchange, TemaServers can belogically grouped and the peer-to-peercommunication limited to the group. Thiscreates consistent high-performanceresponse. Communication over Ethernet ismanaged via the TCP/IP protocol stack.Shared LoadLONWORKSTemaServersTemaKeysSECTION 5: page 11

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