ACTi B81, Installation Manual

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Installation Guide
32
How to Connect Audio Devices (Optional)
Depending on your surveillance needs, you may connect audio input or output device, such as an
active microphone or speaker, to your camera. In this case, you need to connect the audio
input/output device to the supplied audio terminal block.
To connect audio input / output devices, map the pins to one of the pin combinations below:
Device Pin Mapping Instructions
Audio Output
1 GND
Connect the wires of the audio output device to GND
(Pin 1) and AUDIO.OUT (Pin 2).
2
DI1
Audio Input
3 GND
Connect the wires of the audio input device to GND
(Pin 3) and AUDIO.IN (Pin 4).
4 DI2
Press and hold the orange tab as you insert the wire through the pin slot, then release the orange
tab to secure the wire.
NOTE : For more information about AUDIO in connections, please refer to the Knowledge Base
article How to Use Audio-in of ACTi Cameras , downloadable from the link below
( http://www.acti.com/support/KnowledgeBase/outside/detail.asp?KB_ID=KB20100114003 ).
4
3
2
1