3.Alarm Connection
The DVR can support up to 4 alarm inputs and three alarm outputs.
Alarm input:
There are two types of alarm input.
1. Voltage output 5V and 0V
A:
If the sensor outputs high voltage (5V) normally and outputs low voltage when triggered
(0V), then users must set DVR for low voltage alarm.
B:
If the sensor outputs low voltage (0V) normally and outputs high voltage when triggered
(5V), then users must set DVR for high voltage alarm.
2. Open/Close output
A: N.O. Normally open/close when triggered. DVR must be set for low voltage alarm.
B: N.C. Normally closed/open when triggered DVR must be set for high voltage alarm.
This diagram shows an example of an
alarm output connection.
Alarm output
There are three alarm output pins, the status of these pins are illustrated as below
N.O.
COM
N.O.
COM
Before alarm
After alarm
N.O.
COM
N.C
.
Alarm
5V
4.Hard Disk Connection
There are several steps to install the hard disk.
Note: If the DVR comes with a HDD, skip the following steps.
Pull out the hard drive rack
from the DVR
side panel.
2.
Open the top cover of the drawer.
3.
Jump HDD to Master
Jump to Master
4. Connect the ribbon cable
(
IDE
)
cable &
power cable.
5.
Close the top cover of the drawer
and
put
the hard drive drawer back into the DVR. (Make
sure the cables are firmly pressed onto the HDD
interface
)
6.
Lock the hard drive draw by turning the key
clockwise.