installation & connection
48_ installation & connection
1. Connect the AUDIO IN port of the camera with the microphone or LINE OUT port of
the amplifier that the microphone is connected to.
2. Connect the AUDIO OUT port of the camera with the speaker or LINE IN port of the
amplifier that the speaker is connected to.
3. Check the specifications for audio input.
• Audio Codec
G.711 PCM. μ-law 64kbps 8kHz / G.726 (16Kbps, 24Kbps, 32Kbps, 40Kbps)
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
Connecting to the I/O port box (SNB-7002)
Connect the Alarm I/O signal to the corresponding port of the rear port box.
• ALARM IN : Used to connect the alarm input signal.
• ALARM OUT : Used to connect the alarm output signal.
• GND : Used for earth-grounding.