User`s guide

Installation
2–10 700-0035 R004
2.6. Step 5: Connecting the Alarm Input Harness and
Alarm Switch
The TR4 Plus DVR allows for easy searching of events in the recorded video. An
alarm event can be used to set a search point in the digital video and can be
triggered from a number of different sources, including a driver-activated switch.
The alarm input harness shown in Figure 2-6 is used to connect to the alarm input
connector.
To connect the alarm input harness:
1. Connect the red and black wires from the alarm input harness together to
activate the alarm input.
OR
Connect the red wire to electrical ground to activate the alarm input.
2. Connect the alarm input connector on the back of the DVR.
A red push button alarm switch shown in Figure 2-7 is also provided.
To connect the alarm switch:
1. Mount the switch into a ½" hole and attach to the alarm input harness using
the butt spice connectors.
2. Attach the black wire of the alarm switch to the black wire of the alarm input
harness.
3. Attach the blue wire of the alarm switch to the red wire in the alarm input
harness.
Figure 2-6 Alarm input harness
Figure 2-7 Alarm switch