8516 Hybrid NVR with RAID Installation Guide
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Feature Overview
Audio Terminals
Audio in and out terminals are available on the back of the unit. These terminals provide line level
audio input and output.
Audio Input
Connect an audio cable to the Audio In terminal block.
Use the audio cable to connect an audio input device, such as a microphone, to the unit.
If you are connecting a microphone to the unit, you must use a pre-amplifier to amplify the signal to
line level. Place the pre-amplifier close to the microphone for best results.
Input specification:
unbalanced, 10 k
Ω
, 1Vp-p (line level)
Audio Output
Connect an audio cable to the Audio Out terminal block. Use the audio cable to connect an
amplified audio output device, such as an intercom or speaker, to the unit. Ensure that the audio
output device (whether intercom or speaker) includes a built-in amplifier.
Output specification:
unbalanced, 600
Ω
, 1Vp-p (line level)
Pinout
Description
Audio
In
1
Signal for audio input channel 1. Connect the return to the “G” between audio input 1 and 2.
2
Signal for audio input channel 2. Connect the return to the “G” between audio input 1 and 2.
3
Signal for audio input channel 3. Connect the return to the “G” between audio input 3 and 4.
4
Signal for audio input channel 4. Connect the return to the “G” between audio input 3 and 4.
G Return for the audio inputs. Each “G” is shared with 2 adjacent input channels. The 2 adjacent
input channels are the only channels that should use each return.
Audio
Out
1
Signal for audio output channel 1. Connect the return to the “G” between audio output 1 and 2.
2
Signal for audio output channel 2. Connect the return to the “G” between audio output 1 and 2.
G Return for the audio outputs. The 2 adjacent output channels are the only channels that should
use this return.
Audio In
Audio Out
