Dahua DH-HAC-HF3231EP Gebruikershandleiding - Pagina 9
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Please refer to sheet 2-2 for rear panel structure function of model B.
Port Name
AC 24V/ DC
Power port
12V
Indicator light
System status
indicator light
Alarm
NC
GND end
NO
Alarm
port
External
trigger
D/N
day/night
mode switch
G
GND
A
RS485 port
B
Figure 2-5
Port Function
Power port.
Connect to AC 24V/ DC 12V.
Dual-light indicator light.
After system booted up the indicator light is
green, system is outputting high definition
video by default.
The indicator light is red when system is
outputting standard definition video. The
indicator light is green again when system is
outputting high definition video.
input
GND end
input
Receive the signal from external alarm source
Connect to external control signal to control ICR
switch to realize day/night mode switch.
Please note: if you want to use this function, you
need to go to the OSD menu to set the day/night
mode as EXT TRIG-HIGH or EXT TRIG-LOW.
The control signal shall connect to the D/N and G
port. For example, connect the 5V to the D/N port
and the day/night mode as EXT TRIG-HIGH; the
camera can switch from day mode to night mode.
Ground end.
RS485_A port. Connect to DVR or RS485
configuration tool to set video parameters.
RS485_B port. Connect to DVR or RS485
configuration tool to set video parameters.
5