8
9
To reset the unit, you will need a straightened paperclip:
1. Turn the DVR off.
2. Turn it on again.
3. While the DVR is initializing, poke the straightened paperclip in the unlabeled hole to the right of the RS-232C connector.
4. Hold the switch until all the LEDs on the Front Panel are lit.
NOTE: When the DVR successfully resets to factory defaults all the LEDs on the Front Panel flash three times.
5. Release the reset switch. All of the DVR’s settings are now at the original settings it had when it left the factory.
Connecting Alarms
The DVR can activate external devices such as buzzers or lights. Mechanical or electrical switches can be wired to the NC (Normally Closed) and C (Common)
connectors or NO (Normally Open) and C (Common) connectors. Permitted current is up to 0.5A for 125VAC, 1A for 30VDC. See
Chapter 3 - Configuration
for
configuring alarm output.
AI1 AI2
GND ARI
AI4
AI3
NC C
C NO
NC
NO
Alarm Input connector strips
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 4 (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 for NC (Normally Closed) is above 4.3V and should be stable at least 0.5 seconds to be detected. For NO (Normally Open),
the threshold voltage is below 0.3V. See
Chapter 3 - Configuration
for configuring alarm input.
GND (Ground)
Connect the ground side of the Alarm input to the GND connector.
ARI (Alarm Reset In)
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.
Alarm Out
Alarm Output connector strips