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installation & connection
20_ installation & connection
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
600
1 2 3 4 5 6
1 : ALARM IN 4 : GND
2 : ALARM OUT 5 : RS-485+
3 : ALARM COM 6 : RS-485-
Speaker Amp Microphone
PC
Amp
Network
Microphone
Microphone
Speaker