Dahua Smart Box Series, User Manual

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Standalone DVR User’s Manual
129
Earth cable.
3.7.1.5
8HDD 960H 2U Entry-level
Series
The product interface is shown as in Figure 3-6.
Figure 3-6
You can refer to the following sheet for detailed information
1
，
2
，
3
，
4
，
5
，
6
，
7
，
8
，
9
，
10
，
11
，
12
，
13
，
14
，
15
，
16
ALARM 1 to ALARM 16. The alarm becomes active in low voltage.
1-NO C
，
2-NO C
，
3-NO C
There are three groups of normal open activation output (on/off
button).
Earth cable.
3.7.2 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 3-7
3.7.3 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.