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

9x5x• By a specified resistance value to a zone. The zone must be wired asshown in Figure 20.Note: Depending on the sensor, a 4K4 resistance means either"masked" or "fault". Use command 88 to specify which reportingmethod to use. All sensors with anti-masking contacts must use a 4K4resistance for the same meaning (masked or fault).2K2Tamper4K7AlarmZone 1Anti-mask2K2ZoneResistance9.1k6.9kOpen Circuit Tamper AlarmMaskedAlarm2K2TamperAlarm4K7Zone 22K2Anti-mask4.4k2.2kMasked or Fault (see note)HealthyShort Circuit Tamper AlarmFigure 20. Wiring Zones that use Anti-MaskingConnecting Expanders9954EN Hardwired ExpanderThe 9954EN hardwired expander provides connectors for eight CCL, FSL orEOL zones. Figure 21 shows the layout of the PCB. See the wiring diagramsupplied with the 9954 hardwired expander for more details. The 9954ENsupports three-resistor anti-masking zones.Issue 1 25 of 76