Installation i-on30EXL/EXDLPage 24Figure 46 Example: Wiring a Trouble/MaskingZone, 3 Resistor Method.Step 7. Connect WiredOutputsFigure 47 Connecting Wired PeripheralsControl Unit Wired OutputsThe control unit PCB provides one connector forwired outputs. Outputs 1 is driven by a transistor,and is capable of sinking a maximum 500mAwhen active. By default output 1 is 0V whenactive, +12V when inactive. If you wish to reversethe polarity of this output see Changing the Polarityof a Wired Output in the i-on Range EngineeringGuide.Figure 47 shows an example of using the wiredoutputs to drive an indicator LED.Wired External Sounders (Optional)Wired external sounders differ in their methods ofconnection. Figure 47 shows an example of ageneral method of using the outputs to connect awired sounder.It is possible to program the TR terminal on thecontrol unit (see item 2 in Figure 4) as either CCor FSL. Use Installer Menu – System Options – PanelTamper Rtn. By default the terminal is CC. If youprogram the TR terminal as FSL then make sureyou connect a 2k2 resistor in series with the wireto the sounder.Note: If you do not wish to connect a wiredexternal sounder then leave TR programmed asCC and make sure you link TR to 0V on thecontrol unit. This prevents the control unitreporting Bell Tamper unnecessarily.Wired Outputs on ExpandersEach EXP-W10 wired expander providesconnections for up to four transistor drivenoutputs. Each output has a maximum rating of500mA (but note that the bus may not be able tosupply this much current). By default the outputsare 0V when active, +12V when inactive. If youwish to reverse the polarity of these two outputssee Changing the Polarity of a Wired Output in thei-on Range Engineering Guide. Figure 48 shows anexample of using an expander output to drive anLED.1K0 Resistor16 Ohm minimumTypical loudspeake rfor example 09040LED (LightEmittingDiode)12VAUXOutOUTPUTS1 2 3 4 LS- +0VFigure 48 Using Wired Expander Outputs.Wired External Sounders on ExpandersFigure 49 shows a general method of using theoutputs on a wired expander to connect a wiredexternal sounder.Connect the tamper wiring to an unused zoneconnection on the expander. For 4-wire CC zonesuse the alarm contacts only and link the tampercontacts together with a short length of wire.In the Installer Menu, program the zone with atype of “Tamper”. Program the outputs used totrigger the siren and strobe with the appropriateoutput types. See the i-onEX Range EngineeringGuide for more details.Single Wire Tamper ReturnIf the external sounder provides a single –TRconnection, then use the zone type “TamperReturn” for the zone terminals which receive theconnection at the expander.