© Copyright Qvis® All documentation rights reserved. 39Figure 3-53.7.3 Alarm Output Port Provide power to peripheral alarm device. To avoid overloading, please read the following relay parameters sheet carefully. RS485 A/B cable is for the A/B cable of the PTZ decoder.Relay SpecificationModel: JRC-27FMaterial of thetouchSilverRating（ResistanceLoad）Rated switch capacity 30VDC 2A, 125VAC 1AMaximum switch power 125VA 160WMaximum switch voltage 250VAC, 220VDCMaximum switch currency 1AInsulation Between touches with samepolarity 1000VAC 1minuteBetween touches with differentpolarity1000VAC 1minuteBetween touch and winding 1000VAC 1minuteSurge voltage Between touches with samepolarity 1500V (10×160us)Length of opentime3ms maxLength of closetime3ms maxLongevity Mechanical 50×106 times (3Hz)Electrical 200×103 times (0.5Hz)Temperature -40℃ ~+70℃
