How to connect RS-232 port
Connecting to the RS-232 Port
Connect to
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How to use alarm input & alarm output
Connecting Alarm Input & Output
SENSOR
To make connections on the alarm connector strip, press and hold the button and insert the wire in the hole above the buttion. After releasing the button, tug gently on the wire to make certain it is connected. To disconnect a wire, press and hold the button below the wire and pull out the wire.
When a specific alarm(sensor) signal is detected, DVR has the functions that make users to recognize the alarm(sensor) occurrence easily: channel recording, channel or message popup, alarm output etc.
For alarm setting, see “6.TECHNICAL SETTING - 
ALARM INPUT”
ALARM IN 1 to 16
You can use external devices to signal the DVR to read to events.
Mechanical or electrical switches can be wired to the AI (Alarm In) and GND (Ground) connectors.
GND (Ground)
All the connectors marked GND are common.
Connect the ground side of the alarm input and/or alarm output to the GND connector.
ALARM OUT 1 to 16
The DVR can activate external devices such as buzzers or lights. Connect the device to the AO (Alarm Out) and GND (Ground) connectors.
Setting to the sensor alarm
Go to SETUP menu (6.TECHNICAL SETTING - 
ALARM INPUT) to do setting the alarm input.
Set RECORDING CHANNEL or IMAGE QUALITY,
MAIN CHANNEL, MESSAGE, ALARM OUTPUT, DURATION and ACTIVE TIME to notify an alarm (sensor) detection in this menu.
Select MESSAGE and type an alarm message using ON
Select ACTIVE TIME and DURATION to set alarm operation schedule and output time. Recording time follows the
At active time tab selection, active time window will be appeared and set alarm active time in this window.
OPERATION
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