Honeywell HRHD 410 - Manual (Page 25)

Installation
Rev 3.01 7 Document 900.0315
10/05
Note The Loop BNC connectors are auto terminated. Do not connect
a cable to the Loop BNC unless it is connected to another
terminated device because it will cause poor quality video.
Connecting Audio
Note It is your responsibility to determine if local laws and regulations
permit recording audio.
Figure 2-4 Audio In and Out Connectors
Your DVR can record audio.
1. Connect the audio source to Audio In.
2. Connect Audio Out to your amplifier.
Note The DVR does not have amplified audio output, so you need a
speaker with an amplifier. The audio input must be from an
amplified source.
AUDIO IN 1 AUDIO IN 2 AUDIO IN 3 AUDIO IN 4 AUDIO OUT