Addressing E-Bus Devices on the previous page. The formula 2n - 1 applies where n is the value ofthe PSU ID. For example, if you assign ID 10 to an SAP 25, each transponder will be assigned the X-BUS IDs 19 and 20.NOTICE: In the PSU dropdown list, a hash (#) symbol prefixes an SAP 25 ID to indicate that theautomatic addressing of transponders will conflict with existing input transponders. To resolve thisconflict, you must readdress one of the conflicting devices.23.22 FlexC GlossaryAcronym EN50136-1 Description FlexC ExampleAE Annunciation EquipmentEquipment located at an ARC which secures and displays thealarm status, or the changed alarm status of ASs in response tothe receipt of incoming alarms before sending a confirmation.The AE is not part of the ATS.SPC Com XT ClientARC Alarm Receiving CentreContinuously manned centre to which information concerning thestatus of one or more AS is reported.SPC Com XT would be installed inan ARC.AS Alarm SystemElectrical installation, which responds to the manual orautomatic detection of the presence of a hazard. The AS is notpart of the ATS.SPC PanelATE Alarm Transmission EquipmentCollective term to describe SPT, MCT (Monitoring CentreTransceiver) and RCT.-ATP Alarm Transmission PathRoute an alarm message travels between an individual AS andits associated AE.The ATP starts at the interface between AS and SPT and endsat the interface between RCT and AE. For notification andsurveillance purposes the reverse direction may also be used.A defined path between the SPCpanel and SPC Com XT. Forexample, system with Ethernet asthe primary path and GPRS as abackup path would be twoseparate ATPs of an ATS.ATS Alarm Transmission SystemATE and networks used to transfer information concerned withthe state of one or more ASs at a supervised premises to one ormore AEs of one or more ARCs. An ATS may consist of morethan one ATP.A system combining one ormultiple paths between SPC paneland SPC Com XT.RCT Receiving Centre TransceiverATE at the ARC including the interface to one or more AE(s) andthe interface to one or more transmission networks and beingpart of one or more ATPs. In some systems this transceiver maybe able to indicate changes of the status of an AS and to storelog-files. This may be needed to increase the ATS availability incase of AE failure.SPC Com XT ServerSPC4xxx/5xxx/6xxx – Installation & Configuration Manual Appendix© Vanderbilt 2018 393 A6V10276959-d11.2018