AGI Security SYS-HC0451 HDCVI DVR User Manual - Manual (Page 59)

HDCVI Standalone DVR User’s Manual
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R+ R-: input wire
3.6.2 Alarm Input Port
Please 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 (Provide
external 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 3-2
3.6.3 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 wire
R+ R-: input wire
Relay Specification
Model: JRC-27F
Material of the
touch
Silver
Rating
（Resistance
Load）
Rated switch capacity 30VDC 2A, 125VAC 1A
Maximum switch power 125VA 160W
Maximum switch voltage 250VAC, 220VDC
Maximum switch currency 1A
Insulation Between touches with same
polarity
1000VAC 1minute
Between touches with different
polarity
1000VAC 1minute
Between touch and winding 1000VAC 1minute