Techpro TRIDVR-EL8C, User Manual

Page: 33 / 225

57
Figure 3-1
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
ALARM 1 to ALARM 16. The alarm becomes active in low voltage.
In the second line,
from the left to the
right:
NO1 C1
，
NO2 C2
，
NO3 C3
，
NO4 C4,
NO5 C5 NC5
The first four are four groups of normal open activation output (on/off
button)
NO5 C5 NC5 is a group of NO/NC activation output (on/off button)
CTRL 12V Control power output. For external alarm, you need to close the
device power to cancel the alarm.
+12V It is external power input. Need the peripheral equipment to provide
+12V power (below 1A).
Earth cable.
485 A/B 485 communication port. They are used to control devices such as
decoder.
T+,T-,R+,R- They are four-wire double duplex RS485 port
T+ T-: output wire
R+ R-: input wire
3.6.2 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.