Q-See QC40198 User Manual

Also see for QC40196: User manual Quick installation guide Quick installation guide

Q-See QC40198 User Manual Manual pdf 29 page image

56 57CHAPTER 7 ALARMSThe accompanying diagram (Picture 7-2), along with your alarm’s manual should beconsulted to ensure proper connection.• Normal open or Normal close type• Parallel connect COM end and GND end of the alarm detector (Provide external power tothe alarm detector).• Parallel connect the Ground of the combo DVR and the ground of the alarm detector.• Connect the NC port of the alarm sensor to the combo DVR alarm input(ALARM)• Use the same ground with that of combo DVR if you use external power to the alarm device.PICTURE 7-2+12V GND COM PCGNDALARMAlarm input public end should jump out with device power end.Alarm Device Connection TerminalAlarm DeviceConnection Terminal+12V GNDRelay SpecificationModel: JRC-27FMaterial of the contact SilverRating (Resistance Load) Rated switch capacity 30VDC 2A, 125VAC 1AMaximum switch power 125VA 160WMaximum switch voltage 250VAC, 220VDCMaximum switch currency 1AInsulation Between contacts with same polarity 1000VAC 1minuteBetween contacts with differentpolarity1000VAC 1minuteBetween contacts and winding 1000VAC 1minuteSurge voltage Between contacts with same polarity 1500V (10×160us)Length of open time 3ms maxLength of close time 3ms maxLongevity Mechanical 50×106 times (3Hz)Electrical 200×103 times (0.5Hz)Temperature -40°C ~+70°C (-40°F to +158°F)7.2 ALARM OUTPUTThe alarm output port should not be directly connected to a higher power load (greater than1A) to avoid high current which may damage the relay. Use the co-contactor to establish theconnection between the alarm output port and the load.• 2 way relay alarm output (NO contact). Provides external power to external 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 camera.