Honeywell HRHD 410 - Manual (Page 30)

Installation
Rev 3.01 12 Document 900.0315
10/05
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 settings are now at the original settings it
had when it left the factory.
Connecting Alarms
Figure 2-11 Alarm Input Connector Strips
To make connections on the Alarm Connector Strip:
1. Press and hold the button.
2. Insert the wire in the hole below the button.
3. After releasing the button, tug gently on the wire to make certain it is connected.
4. 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 is 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.
AI1 AI2 AI3 AI4 GND ARI