User’s Manual
6
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.
Connect the device to the
COM
and
NC
(Normally Closed) connectors or
COM
and
NO
(Normally Open) connectors. NC/NO is a relay output which sinks 2A@125VAC,
1A@250VAC, 1A@30VDC (NC) and 5A@125VAC, 2A@250VAC, 3A@30VDC (NO).
ARI (Alarm Reset In)
Figure 11 — Alarm Reset Input connectors.
An external signal to the
Alarm Reset In
can be used to reset both the Alarm Out signal and the
DVR’s internal buzzer. Mechanical or electrical switches can be wired to the
ARI
(Alarm Reset
In) and
GND
(Ground) connectors. The threshold voltage is below 0.3V and should be stable at
least 0.5 seconds to be detected. Connect the wires to the
ARI
(Alarm Reset In) and
GND
(Ground) connectors.
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