Radio Engineering Industries Digital BUS-WATCH R1001, Hardware User Manual

Page: 27 / 96

Digital BUS-WATCH
®
R1001 / R4001
Accelerometer Module Harness
VIEW
REAR
710031 or 710134
DIGITAL BUS-WATCH
ACC
TRIGGER ACC GPS CAM1 SENSORS CAM4 CAM2 CAM3
POWER
R VIDEO
OUT AUDIO OUT
R
L
ICP
C
C F
ACCELEROMETER MODULE
710143
Figure 16: Accelerometer Module Harness Connection
The optional external Accelerometer, or Inertia Sensor, must be hard mounted to
the vehicle floor, frame, or some other non-dampened part of the vehicle. The reason for
this is so that if external dampening is used for the DVR, it will not throw off the
Accelerometer readings.
To properly install the Accelerometer Module, the user must align the device with
the picture on top of the module as shown in Figure 17 below. The X axis is drawn from
the back to the front of the bus, the Y axis is drawn from the side of the bus to the other
side of the bus, and the Z axis is drawn from the bottom to the top of the bus. The
Accelerometer Module then needs to be calibrated as shown in Figure 80 on Page 79.
Figure 17: 3 Axis Inertia Sensor Directions
Page 27 of 96
Radio Engineering Industries, Inc.
640370 -- Rev 0 -- 8/17/2007