Table of Contents
Advertisement
Please make sure the front-end device has soundly earthed
Improper grounding may result in chip damage.
4.3.1 Introducing Alarm Port
The alarm input ports are dependent on the model you purchased.
Icon
1，2，3，4，5，6，
7，8，9，10，11，
12，13，14，15，16
NO1 C1, NO2 C2,
NO3 C3, NO4 C4
NO5 C5 NC5,
CTRL 12V
+12V
485 A/B
T+,T-,R+,R-
4.3.2 Alarm Input
Please refer to the following figure for more information.
Grounding alarm inputs which includes Normal open and Normal close type.
Please parallel connect COM end and GND end of the alarm detector (Provide external
power to the alarm detector).
Description
ALARM 1 to ALARM 16. The alarm becomes active in low voltage.
There are four groups of normal open activation output (on/off button).
There is one group of normal open activation output (on/off button).
Control power output of the 6
500mA.
When there is an alarm output, close the power output.
When the alarm is cancelled, open the power output.
Rated current.
Voltage current: 500mA.
Ground 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.
Four-wire full-duplex RS485 port.
T+ T-: output wire.
R+ R-: input wire.
th
alarm output channel. Voltage current:
Connecting Basics 23
Advertisement
Table of Contents
