Dahua F Series DHI-ITC237-PU1B-IR User Manual page 11

Port Name
VIDEO OUT Video output port
AC 24V / DC 12V
Power
Red indicator
Indicator Light
Green indicator
Yellow indicator
G GND
TX
RS232 port
RX
B
RS484 port
A
NA -
I1 Alarm input port 1
I2 Alarm input port 2
N1
C1
N2
Alarm output port
C2
P
Power return output
G （close to P）
RESET Reset
Auto
ABF
focus
AUDIO OUT Audio output port
AUDIO IN1
Audio input port
AUDIO IN2
Net port/MB fiber
LAN /OPT
port
SD SD card port
GND port
Figure 2-6
Function
Reserved
Input AC 24V or DC 12V power supply, can supply at the
same time, only for camera, no lighting.





Detect wireless device－yellow indicator NO.
RS232 GND
RS232 send
RS232 receive
RS485 port connect shield light. Camera control shield light
-
2-ch IO input （ switch signal receives external alarm
source）, used to trigger camera snapshot.
Alarm output port，output alarm signal link to open barrier.


Note:
When device is conencted, N1 can only work with C1 while
N2 can only work with C2.
Output DC 12V power, P +, G -
port


adjust back Auto adjust back focus, by adjusting Sensor board position,
adjust back focus, one-click to complete.
Reserved
Reserved
Reserved


Connect to SD card
When client is using device, connect this port to GND
System enanle －red indicator NO
System upgrade－red indicator flash
System reset－green indicator, red indicator NO.
Normal work－green indicator NO
Record status display ： record indicator flash when
recording.
via 485.
N1/N2：NO alarm output
C1/C2：alarm output public end
Restore device default setup
When device normally work, keep holding this button for
5s, system will be reset.
LAN
OPT
6