X GEM-X255 Installation Instructions L NAPCO Security SystemsWI1093C 3/04! Page 14WIRING CONNECTIONSAUXILIARY ALARM OUTPUTAuxiliary Output can be activated depending on the programming options selected (see GEM-X255 Programming Instructions). Connect the device controlled by the programmable outputbetween terminal 8 (+) and terminal 14 (-). A programming option ìAuxOut Chirp on Key-fobArm/Disarmî is available. If selected, an external siren driver can be connected to these termi-nals.TRANSFORMERConnect a 16.5 VAC Transformer to Terminals 1 and 2, using a wire of #18 AWG. orless at a distance of 15 ft. or less from the control panel. NOTE: Do not connect to aswitched outlet.AC IN, 16.5V/60HZ VIATRF11 OR TRF14CLASS 2 TRANSFORMERDO NOT CONNECT TOSWITCHED OUTLET12BATTERYThe RED (+) and BLACK (-) flying leads must be connected toa 12VDC 4, 6 or 7 AH Rechargeable Battery, to serve asbackup power in the event of AC Power Failure. NOTE: Tocalculate the available standby time refer to the Standby-Battery Calculation Worksheet at the back of this manual.Connect the alarm sounding devices (self-contained sirens, speakers or a mechanical bells) toterminals 5 (+) and 14 (-). Any self-contained siren requiring a 12 VDC input can be connected.When connecting a mechanical bell, it must be supervised using a 2.2k Ohm resistor. To con-nect 8 Ohm Speakers use a Siren Driver with the proper polarity observed. NOTE: Refer to theWiring Diagram for alarm current specification, bell supervision and burglary output relay.Note: In NFPA Household Fire Installations. only a single siren or bell can be used on this bellcircuit.SIREN/BELL BURG/FIRE ALARM OUTPUTWIRING CONNECTIONS4 AH, 6 AH OR 7 AHRECHARGEABLEBATTERY 12 VDCBLACKRED(ñ)(+) E1E212VDC