DVM-250/DVM-250Plus Installation Guide
860-00129-00 Rev C
Copyright © 2010-2015 Digital Ally, Inc.
3-6
Trigger Wiring Installation
Once the administrator has received the signal information of each device, they will complete the lower
section of the Sensor Worksheet on page 7-14. Use the information they have provided to connect the
IF Box Sensor cable to the devices.
1.
Position RJ45 end of the sensor cable near the IF Box RJ45 jack, but do not plug it into the IF Box.
2.
Leaving a service loop for connection to the IF Box, begin routing the un-terminated end of the
sensor cable to the desired location in the vehicle for connection for each of the input sensor
devices.
3.
Cut off excess cable as required, and strip the cable jacket from the un-terminated end of the
sensor cable to access the individual wires.
4.
The devices can then be connected to the sensor interface cable based on the lower section of the
Sensor Worksheet on page 7-14.
5.
Use the following table for wiring connections to the sensor cable and connect the external
devices to the appropriate wire of the RJ45 sensor cable.
6.
When all external devices have been connected, plug the RJ45 into the jack labeled “SENS A” on
the IF Box.
Pin
Sensor Number
Wire Color
1
Sensor #1 (Reverse Gear)
RED
2
Sensor #2
ORANGE
3
Sensor #3
BLUE
4
Sensor #4
YELLOW
5
Sensor #5
WHITE
6
Sensor #6
GREEN
7
Output #1
BROWN
8*
GND
BLACK
Pin 8 (GND) can be used to provide a signal ground.
Remote Accessory Out
In addition to activating the DWM-800 wireless microphone, A DVM-250Plus can be configured to
activate or deactivate an auxiliary device when an event record begins. Below is a general outline
showing how the Output Alarm Trigger can be wired using an interposing relay.
The device, relay, and fuse are optional customer provided items. Be sure to select a relay
which can handle the power requirements of your device.
Example wiring diagrams:
1.
Activate during Event Recording:
To activate low power devices when an Event Trigger is active,
the example diagram below shows how to connect it to the IF Box. When the Output alarm is
active the relay will be energized and the device will be powered on. If the Output Alarm is not
active, the relay will not be energized and the device will not be powered.
+12V, (2A max.)
To Vehicle Battery
To Pin 7 of the IF Box
SENS A connector cable
(BROWN wire)
85
86
30
87a
87
Device
GND
Power IN
NC
Fuse 2A Fast Blow
