Dahua DH-ITC231 Manuale di installazione - Pagina 8
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Interface Name
External
SI+, SI-
frequency sync
input interface
RESET
Reset
STATUS
Indicator
Power
DC 12 OUT
interface
GPS
Video output
V-OUT
CVBS
F1+, F1-, F2+,
3 channels of
F2-, AO1, AO2
output interface
IO
IN1, IN2
interface
A1
RS485 interface
1
B1
A2
RS485 interface
2
B2
G
GND
R
RS232 serial
T
1
interface
ABF
Auto focus
GND
AUDIO
Audio
IN/OUT
input/output
Camera sync external signal source（select external sync option and auto
enabled, voltage range12 Vp-p～36 Vp-p or AC 12V～AC 24V）.
Reset to default settings. When the device runs as normal （power indicator
is blue） ，hold this button for 5 seconds, to reset.
Used to show camera work status, indicator definitions as：
Blue NO：running normally.
Red flashing：upgrade.
Red NO：in safe mode.
output
Output 12V DC
Connect to external GPS antenna
CVBS（1.0Vp-p，75Ω） 。
Switch，can set output flash signal and strobe light signal.
Warning:
Page config must match actual connected light, otherwise light may be
damaged.
input
Provide 2 IO trigger snapshot interface or 2 alarm input interfaces.
RS485_A1 interface, control built-in light brightness by default, can
customize external signal detector, vehicle detector, NO light and etc.
RS485_B1 interface, control built-in light brightness by default, can
customize external signal detector, vehicle detector, NO light and etc.
RS485_A2 interface, connect decoder control lens by default, can
customize external signal detector, vehicle detector, NO light and etc.
RS485_B2 interface, connect decoder control lens by default, can
customize external signal detector, vehicle detector, NO light and etc.
GND
RS232_RX，RS232 serial receiver
RS232_TX，RS232 serial sender
network
Connect to standard Ethernet cable. Support
Auto focus
Must ground this interface, improve device reliability, otherwise lighting
protection will be ineffective.
Audio input/output interface
Function
4
POE