8
Alarm
(output)
Installation
Note:
Each sensor
correspond
s
to each camera
channel, for example, alarm input
#
1
will
correspond to channel #1 and
so on.
DVR Installation
Th
is
unit
contains
4 sensor inputs
in which each sensor corres
pond
s
to the 4 channels. The sensor
installation procedures are as
follow. There are two simple step in installing the sensors.
connecting
the sensor signal line:
c
onnect the
sensor
signal line to DVR. The sensor signal terminal
is located on the rear panel of the
DVR
.
Then Connect the sensor jack to the sensor, and plug in the adaptor to an electrical outlet
to power up sensor
.
Sensor Installation
IN1
IN2
IN3
IN4
Alarm
(output)
The unit provides 1 internal switch
to
sound
the
alarm when the sensor is activated. The switch is open at normal
state a wiring diagram
as
shown below. When the alarm is activated, the switch is closed so that the alarm gets the
power. The circuitry is shown as
in the
below figure. There are two simple steps
to
install
t
he alarm.
a) Prepare the power supply for the alarm by connecting the power adapter from the camera to the power
outlet.
b) Connect
the alarm power line to the alarm
output
terminal
located on the back of the DVR
as shown below.
Alarm
AC/DC adaptor
Power outlet
Signal Line
Power
NOTICE:
Sensor input is RECOGNIZED as LOW when alarm
signal is on the same level with GND, and it is recognized as
HIGH when alarm signal is Floating or 5V
,
f
ollowing
the
internal
circuit. Thus,
circuitry can be
damage
d
, when the sensor input
goes to a Negative level or voltage higher than 5V.
D1
5
V