Inc. Smoke Alarm User Manual

XR2500F Installation Guide Digital Monitoring Products
21
InstallatIon
Smoke and Glassbreak Detector Output
14.1 Terminals 11 and 12
Terminal11suppliespositive12VDCregulatedtopower4-wiresmokedetectorsandotherpowereddevices.
ThisoutputcanbeturnedoffbytheuserforvesecondsusingtheSensorResetUserMenuoptiontoallow
latcheddevicestoreset.Terminal12isthegroundreferenceforterminal11.
14.2 Current Rating
TheOutputcurrentfromterminal11issharedwithterminals7,25,and27.
Thetotalcurrentdrawofalldevicespoweredfromthepanelmustbeincludedwithterminal11calculations
andmustnotexceedthemaximumoutputrating.
Powered Zones for 2-Wire Smoke Detectors
15.1 Terminals 25–26 and 27–28
Panelterminals25through28providetworesettableClassB,StyleA,2-wirepoweredzones.For
programmingpurposesthezonenumbersare9and10.
Note:Themaximumwirelengthforeitherzone9orzone10is3000feetusing18AWGor1000feetusing
22AWG.Themaximumvoltageis14VDCandthemaximumnormalstandbycurrentis1.25mADC.The
maximumlineimpedanceis100Ohms.Themaximumshortcircuitcurrentis56mA.
Whenusing725ZoneExpansionModules,useincluded,listed6.8kOhmEOLresistors.Thecompatibility
identierforthezonesusing725ZoneExpansionModulesisB.Whenusing715ZoneExpansionmodules,
uselisted3.3kOhmEOLresistors,Model309.Forallotherzoneexpansionmodules,uselisted1.0kOhm
Model310EOLresistors.ThecompatibilityidentierforthezonesisA.
Note:Donotmixdetectorsfromdifferentmanufacturersonthesamezone.
Caution:PerformingaSensorResetmomentarilydropspowertothedevicesonZones9and10.Thepanel
viewsthesezones(9and10)as“Open”whilethepowerisabsent.