Alarm Input And Output Details; Alarm Input Port - Optiview VRHT Quick Start Up Manual

Please note the following introduction is based on the general 1U series only. For detailed
information, please refer to our resource CD included in your package for electronic
version of the User's Manual.
There are two alarm input types for you to select: normal open (NO) and normal close (NC).

1.8.1 Alarm Input and Output Details

4/8-channel series
You can refer to the following sheet and Figure 1-5 for alarm input and output information.
In the first line, from
the left to the right,:
1 ， 2 ， 3 ， 4 ， 5 ，
6 ， 7 ， 8 ，9 ， 10 ，
11 ， 12 ， 13 ， 14 ，
15，16
In the second line,
from the left to the
right:
NO1 C1，
NO2 C2，
NO3 C3，
CTRL 12V
485 A/B

1.8.2 Alarm Input Port

Please refer to the following sheet for more information.
z
Normal open or Normal close type.
z
Please parallel connect COM end and GND end of the alarm detector (Provide external
power to the alarm detector).
z
Please parallel connect the Ground of the DVR and the ground of the alarm detector.
z
Please connect the NC port of the alarm sensor to the DVR alarm input(ALARM)
z
Use the same ground with that of DVR if you use external power to the alarm device.
AB cable
connection
Figure 1-5
ALARM 1 to ALARM 16. The alarm becomes active in low voltage.
There are three groups of normal open activation output (on/off
button)
Control power output. The power output is off when the alarm is
canceled.
Earth cable.
485 communication port. They are used to control devices such as
PTZ. Please parallel connect 120TΩ between A/B cables if there are
too many PTZ decoders.
16-channel series
AB cable
connection
6