ICRealtime EDGE4T, Руководство пользователя

Страница: 39 / 245

30
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,
NO6 C6.
There are six groups of normal open activation output (on/off button)
CTRL 12V Control power output. For external alarm, you need to close the
device power to cancel the alarm.
Voltage current
；
500mA.
+12V Rated current.
Voltage current
；
500mA.
Earth cable.
485 A/B 485 communication port. They are used to control devices such as
decoder.
120Ω should be parallel connected between A, B lines if
there are too many PTZ decoders.
T+,T-,R+,R- They are four-wire full-duplex RS485 port
T+ T-: output wire
R+ R-: input wire
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.