Dahua DH-DVR0804ME-HE User Manual

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Figure 3-7
Please refer to the following sheet for detailed information.
Name
Pin Introduction
1～7
Alarm input 1～Alarm input 7
8
Alarm GND
9/11
NC1/NC2 of alarm output 1/2
10/12
NO1/NO2 of alarm output 1/2
3.7.2 Alarm Input Port
Please refer to the following sheet for more information. See Figure 3-8.
 Normal open or Normal close type.
 Please parallel connect COM end and COM 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 3-8
3.7.3 Alarm Output Port
 Alarm output 1/2 is level input, output voltage is 12V. The max load shall be less than 12V/1A.
It should not be connected to high power load directly to avoid high current which may result
in relay damage. Please use the co contactor to realize the connection between the alarm
output port and the load.
 To avoid overloading, please read the following relay parameters sheet carefully.
Relay Specification

Dahua DH-DVR0804ME-HE Specifications

General

Brand	Dahua
Model	DH-DVR0804ME-HE
Category	DVR
Language	English