Panasonic CJ-HDR216 User Manual

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Panasonic CJ-HDR216 User Manual Manual pdf 30 page image

22Earth cable.A/B RS485 communication port. They are used tocontroldevicessuchasdecoder.120Ωshouldbeparallel connected between A, B lines if there aretoo many PTZ decoders.T+,T-,R+,R- They are four-wire full-duplex RS485 portT+ T-: output wireR+ R-: input wire3.7.2 Alarm Input PortPlease refer to the following sheet for more information. Grounding alarm inputs. Normal open or Normal close type) Please parallel connect COM end and GND end of the alarm detector (Provideexternal power to the alarm detector). Please parallel connect the Ground of the DVR and the ground of the alarm detector. Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM) Use the same ground with that of DVR if you use external power to the alarm device.Figure 3-23.7.3 Alarm Output Port Provide 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 decoder. T+, T-, R+, R- are four-wire double duplex RS485 port.T+ T-: output wireR+ R-: input wireRelay SpecificationModel: JRC-27FMaterial of thetouch SilverRati Rated switch capacity 30VDC 2A, 125VAC 1A