Cooper TP Workshop Manual_Scant:Layout 1 7/8 ... - Cooper Security

8136 Wiring FSL DetectorsWiring FSL DetectorsEach FSL zone is a ‘Fully Supervised Loop’ using a two wire closed loop.The loop uses two resistors of different values to differentiate between‘Circuit’ and ‘Tamper’ signals: a 2K2 (2.2KW) resistor fitted in series at theend of the wired loop (EOL-End-Of-Line), and a 4K7 (4.7KW) resistor fittedacross the alarm contact, see Figure 6.4k72k2 EOLAlarm contactsZone 1CCTTamper LoopFigure 6. Connections for Single Alarm Contacts and Tamper Wiring.Wiring External SoundersFigure 7 shows the connections for a typical external sounder (SAB). O/P1 ispermanently programmed as a Bell output. Use Menu 51 in Installer programmingmode to select normally energised or normally de-energised, and toprogram a Strobe output. Use Menu 56 to select type of tamper return.If the cable to the external sounder is longer than 50m then some makes ofsounder may cause a tamper when activated. To overcome this problemdouble up the wires between the -ve Hold Off on the sounder and the Aux -veconnection on the panel. If more than one external sounder is being connected,then consult the sounder manufacturer on how to wire the tamperreturn circuit.BellTypical SABNote: Leave disconnected ifEOL method is being used.Bell-ve Tamper ReturnEOL 2k2 resistor**-ve Hold Off+ve Hold Off-ve Apply trig-ve Remove trig-ve Strobe O/P** If present use Menu 56 tospecify EOL tamper return,otherwise leave disconnected.A/TAux +veAux -veOP1OP2End StationOP1: RelayNormallyDe-energized *OP2: RelayNormallyDe-energisedStrobe* Factory default energised.Figure 7. External/Internal Sounder Connection496339 Issue 4 9 of 44