English - 13● CONNECTION & INSTALLATIONCAMERA AND APPLIANCES WIRING DIAGRAMConnecting with Samsung Techwin’s “Stand Alone DVR”RS-485 :yRS-422 :yCameraCameraRXD+RXD-RXD+RXD-TXD+TXD-T(TXD)+T(TXD)-T(TXD)+T(TXD)-R(RXD)+R(TXD)-Stand Alone DVRStand Alone DVRThe maximum power capacity of the built-in relay is 30VDC/2A, 125VAC/0.5A, and 250VAC/0.25A.A separate relay driver device is required if used with an adaptor which exceeds specified nominal specifi cations.Connecting the power connector and GND incorrectly to the NC/NO and COM ports may cause a short circuit and fire,damaging the camera.M Power Module Connection DiagramPower Module Connection DiagramThe power adaptor (AC) has no polarity.Ú