Installation
700-0058 R001
2–13
2.7.2. Connecting the Speed Cable
The 3-conductor speed sensor cable shown in Figure 2-10 is for connecting to an
optional speed signal sensor or to a transmission control module (TCM).
Connecting to a Speed Signal Sensor
The wire cables for correct wiring to the
signals are described in Table 2-3. The green speed pulse signal is designed to
interface to speed sensors that output a pulse signal of up to 20 VDC, 20 VAC
p-p
or speed sensors that use open-collector style outputs. Contact Seon Design for
recommended speed sensors to use with the EX4 Plus 35 System.
All of the wires in the speed sensor cable are protected against short circuits and
transients. Refer to the product documentation that comes with the speed sensor
for further information on connecting to an external speed sensor.
Connecting to a Transmission Control Module (TCM)
The EX4 Plus 35
DVR can interface directly to some types of TCM in vehicles. Contact Seon
Design for further details about connecting the speed cable to different TCMs.
To connect the speed cable to the Smart-Link module:
•
Connect the speed cable connector to the
SPEED
connector on the Smart-Link.
2.8. Step 7: Installing the GPS Receiver
If you have not purchased a GPS receiver or if you wish to install the GPS
receiver at a later time, please proceed to “2.9. Step 8: Installing the Driver’s
Indicator Panel” on page 2–14.
Seon Design provides several models of GPS receivers designed to work with the
EX4 Plus 35 System. Contact your sales representative at Seon Design for the
GPS receiver best suited for your application.
Figure 2-10
20-foot Smart-Link speed cable
Table 2-3
Speed cable wiring
Wire Color
Signals
Black
Signal ground (0 V)
Green
Speed pulse signal
Red
Speed sensor power (7.5 VDC)
