166.4 WiringTerminal DescriptionLED Connector for LED2. The LED lights up for a negativetrigger signal (0 V DC at input).AUX REDCOM BLKStandard connections for power supply (13.8 VDC/200 mA max.).BUS YEL / BUS GRN Not used.SPEAKER Connections for the sounder speaker (8 Ohm,30 W).BLKREDConnections for the backup power supply (12 V/2.1Ah).The battery is charged automatically by the auto-recharging battery circuit.PS +PS -Optional connections for power supply (13.8 V DC/1.6 A).IMPORTANT:If you use a battery, there is no need to connect theseterminals!These connections are required if you do not want touse a battery.The maximum current from these connections is 1.6A. The AUX RED and COM BLK connections can beleft free.IMPORTANT:Make sure that the power source supplies thenecessary current of 1.6 A; otherwise, the alarmsystem cannot work correctly!Note that the compact alarm has no backup powersupply if connected like this!TAMPER RTAMPER FJP3 (PCB)Tamper connections for wall and cover contact. Theconnection of the contacts depends on the TAMPERjumper.The tamper contacts are connected to the JP3 pins.PROX (N.C) Not used.TRBL (N.O) The reaction of the trouble output depends on thesetting of the dip-switch (CONFIG 1).C+ - Connected to +12 V »»» sounder is off- Loss of +12 V signal (or switch to0 V) »»» sounder is activated