I.R.I.S. 808 Digital Video Recorder - Manual (Page 25)

necessary.
Note 1: The HDD must be formatted before it can be used to record video/
audio. Please refer to Section 6.6.1 to format the HDD.
 Power
Connect +5VDC power source to the DVR host if it’s detached from the outer
chamber and used for playback/archive. Or connect +12~24VDC power source to
the outer chamber if it’s used in a vehicle (please refer to the diagrams below).
Power connection without ignition key Power connection with ignition key
3.2 Optional Connections
 Audio inputs
Connect the Audio In/Out & Y/C Out Connector to a Audio In/Out & Y/C
Out Cable, and then connect the audio input connectors of the cable to the audio
line-outs from system cameras or other audio sources. Please make sure to
associate the audio inputs with the cameras in Camera Setup as described in
Section 6.2 accordingly.
 Audio outputs
Connect the Audio In/Out & Y/C Out Connector to a Audio In/Out & Y/C
Out Cable, and then connect the audio output connectors of the cable to the audio
line-ins from speakers.
 Alarm inputs
Connect the alarm inputs to NC and/or NO type of alarm signals. Please make
sure to setup the alarm configurations as described in Section 6.3 accordingly.
 Alarm outputs
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