English
_17
●
in
St
aLL
ation & connection
electrical resistance of copper wire at [20°c (68°f)]
Copper Wire Gauge (AWG)
#24(0.22mm
2
) #22(0.33mm
2
) #20(0.52mm
2
) #18(0.83mm
2
)
Resistance (Ω/m)
0.078
0.050
0.030
0.018
Drop Voltage (V/m)
0.028
0.018
0.011
0.006
Recommended Distance (m)
Less than 20
Less than 30
Less than 30
Less than 30
`
As shown in the table above, you may encounter a voltage-sag depending on the wire length.
If you use an excessively long wire for camera connection, the camera may not work properly.
-
Camera Operating Voltage: DC 12V ±10%
-
Voltage drop measurements on the chart above may vary depending on the type and manufacture of
the copper cable.
connecting to audio input/output
1.
Connect the AUDIO IN port of the camera with the microphone directly or LINE OUT
port of the amplifier that the microphone is connected to.
2.
Connect the AUDIO OUT port of the camera with the LINE IN port of the speaker.
3.
Check the specifications for audio input.
•
audio codec
: G.711 PCM. μ-law 64kbps 8kHz sampling
•
full duplex audio
•
audio in
: Used for mono signal line input (Max.2.4 Vpp)
•
audio out
: Used for mono signal line output (Max.2.4 Vpp)
•
Line out impedance
:
600Ω
NETWORK
VIDEO
GND
ACT
LINK
1 : ALARM OUT
4 : GND
2 : ALARM IN
5 : RS-485+
6 : RS-485-
3 : ALARM COM
1 2 3 4 5
6
Speaker
Amp Microphone
PC
Amp
Network
Microphone
Microphone
Speaker
