ADEMCO VISTA-250BP Installation And Setup Manual

Also see for Vista-128BP: Programming guide

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ADEMCO VISTA-250BP Installation And Setup Manual Manual pdf 26 page image

VISTA-128BP/VISTA-250BP Installation and Setup Guide3-8Using 2-Wire Latching Glassbreaks on Zone 8Zone 8 can support 2-wire glassbreak detectors. Thezone provides enough standby current to power up to 502-wire glassbreak detectors meeting the requirementslisted below.Compatible Glassbreak DetectorsUse detectors that meet the following ratings:StandbyVoltage:5VDC–13.8VDCStandbyResistance:Greater than 20k ohms (equivalentresistance of all detectors in parallel)AlarmResistance:Less than 1.1k ohms (see note below)AlarmCurrent:2mA–10mAReset Time: Less than 6 secondsNOTES:• You can use detectors that exceed 1.1k ohms inalarm, provided they maintain a voltage drop ofless than 3.8 volts in alarm.• The IEI 735L Series detectors have been tested andfound to be compatible with these ratings.2122GLASSBREAKDETECTORZONE 8 (+)(-)LATCHING TYPE GLASSBREAK DETECTOR LOOP2000OHMSEOLRFigure 3-13: Wiring Latching Glassbreaks to Zone 8• The alarm current provided by zone 8supports only one glassbreak detector inthe alarmed state.• Do not use other N.O. or N.C. contactswhen using glassbreak detectors on zone8. Other contacts may prevent properglassbreak detector operation.To wire 2-wire latching glassbreak detectors to zone 8,perform the following steps:Step Action1 Select compatible 2-wire glassbreakdetectors that meet the requirements statedpreviously.2 Connect detectors across zone 8 (terminals21 and 22). See Figure 3-13.3 Connect the EOL resistor at the lastdetector in the loop across the zone’sterminals. You must connect the EOLresistor across the loop wires at thelast detector.Tamper Supervision for the Hardwired ZonesThe system can be programmed to monitor for either anopen condition or a short condition of a tamper switchon zones 1-8. End-of-line supervision is required forthis option.Wiring a Tamper Switch to Zones 1-8The wiring of the tamper switch depends on whetherthe tamper switch and the sensor are normally open ornormally closed.• If you are using a normally closed sensor, thetamper switch must be normally open. Refer toFigure 3-14 for the wiring configuration.• If you are using a normally open sensor, thetamper switch must be normally closed. Refer toFigure 3-15 for the wiring configuration.• For the normally closed sensor, program thezone for trouble on short. For the normally opensensor, program the zone for trouble on open.To wire a tamper switch on a hardwired zone, connectthe EOL resistor at the last detector in the loop acrossthe zone’s terminals. You must connect the EOLresistor at the last detector for proper operationof the tamper supervision.NOTE: For zones with a response type of 9 or 16 (Fire),the tamper selection must be “0” none.2k EOLR+TAMPERSWITCHSENSORFigure 3-14: Wiring a Normally Closed Loop forTamper Supervision2k EOLR+TAMPERSWITCHSENSORFigure 3-15: Wiring a Normally Open Loop forTamper Supervision