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 8 — 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.
GND (Ground)
NOTE: All the connectors marked GND are common.
Connect the ground side of the Alarm input and/or alarm output to the
GND
connector.
AO 2 to 16 (Alarm-Out)
Figure 9 — Alarm Output connectors.
The DVR can activate external devices such as buzzers or lights. Connect the device to the
AO
(Alarm-Out) and
GND
(Ground) connectors.
AO
is an active low open collector output which sinks
30mA@12VDC.
See
Chapter 3 — Configuration
for configuring alarm output.
NC/NO (Normally Closed/Normally Open)
Figure 10 — Relay Alarm Output connectors.
