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Installation
Document 900.0856 Rev 3.00 25
11/07
Your DVR can record audio from up to four sources. Connect the audio sources to
Audio In 1, Audio In 2, Audio In 3 and Audio In 4 as needed using RCA jacks. Connect
Audio Out to your amplifier.
Note The DVR does not have amplified audio output, so you will need
a speaker with an amplifier. The DVR does not have a
pre-amplifier for audio input, so the audio input should be from
an amplified source, not directly from a microphone.
Connecting Alarms
Figure 2-7 Alarm Input Connectors
Note To make connections on the Alarm Connector strip, press and
hold the button and insert the wire in the hole below the button.
After releasing the button, tug gently on the wire to make certain
it is connected. To disconnect a wire, press and hold the button
above the wire and pull out the wire.
AI 1 to 16 (Alarm-In)
You can use external devices to signal the DVR to react to events. Mechanical or
electrical switches can be wired to the AI (Alarm-In) and GND (Ground) connectors.
The threshold voltage is 4.3V and should be stable at least 0.5 seconds to be detected.
See Chapter 3, Configuration for configuring alarm input.