Dahua H Series Manual de inicio rápido - Página 7
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1.1
Device Ports
Device ports might vary with different models, and the actual product shall prevail.
Waterproof all the cable joints with insulating tape and waterproof tape to avoid short circuit
and water damage. For the detailed operation, see the FAQ Manual.
For more information about device ports, see Table 1-1.
No.
Port Name
A
B
G
I1
I2
I3
N1
1
C1
N2
C2
P
G (close to P)
AUDIO OUT
2
AUDIO IN
1
Introduction
Figure 1-1
Device ports
Table 1-1 Device ports information
Description
RS-485_A, controls external devices, such as PTZ.
RS-485_B, controls external devices, such as PTZ.
Ground connection of port I1, port I2 and port I3..
Receives the switch signal of external alarm source.
Outputs alarm signal to alarm device.
N1/N2: Normally opened alarm output port.
C1/C2: General alarm output port.
You can only connect N1 to C1, and N2 to C2.
Outputs 12V DC 2W power. P is for positive pole, and G is for
negative pole.
3.5 mm port, and can connect to speaker to output audio
signal.
3.5 mm port, and can connect to sound-pick-up device to
receive audio signal.
1
Quick Start Guide