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Do not merely count the alarm input and out channel amount according to the ports
on the rear panel.
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 the second line, from the left to the
right:
NO1 C1,
NO2 C2,
NO3 C3,
NO4 C4,
NO5 C5,
NO6 C6.
CTRL 12V
+12V
485 A/B
T+,T-,R+,R-
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).
Figure 3- 1
in low voltage.
There are six groups of normal open activation
output (on/off button)
Control power output. For external alarm, you need
to close the device power to cancel the alarm.
Voltage current; 500mA.
Rated current.
Voltage current; 500mA.
Earth cable.
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.
They are four-wire full-duplex RS485 port
T+ T-: output wire
R+ R-: input wire
289
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