Jamar RAC-100, Manual

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RAC-100 and 200 User’s Manual
2-4
Use the cable ties provided while routing the cable to the location for get-
ting the speed signal that you previously identified. Attach the red and
black wires of the VSS cable to the vehicle’s speed sensor wires using the
tap splice connectors provided. The red wire goes to the high-speed signal
wire; the black goes to the low speed signal wire.
NOTE: The tap splice connectors are supplied for convenience for initial
installation. However, we recommend that once the installation is com-
pleted and you have verified the instrument is working properly, remove
the tap splice connectors and solder the connections. Insulate using elec-
trical tape or silicone.
4. Plug the connector of the VSS cable
into the hole labeled VSS Input located
on the right side of the MDS, as shown
in Figure 2.2.
5. Route the black DMI cable from the MDS to the desired instrument
location. This will usually be routed between the doorpost and the dash-
board. Make sure the cable will not be pinched when closing the door. If
the instrument is going to be mounted to the front of the dashboard, you
may want to bring the cable straight up the front of the dash. There is
adequate cable length to allow mount-
ing the DMI in any desired location
inside the vehicle. Plug the cable into
the MDS jack labeled To DMI, as
shown in Figure 2.3. It does not matter
which end of the cable is plugged into
the MDS or DMI.
6. Route the Red (+12 Volts) and Black
(Ground) power cables directly to the
vehicle’s battery. This can be done us-
ing the same feed through location that
was used for the VSS Cable. If, out of
convenience, you elect to obtain the
+12VDC and ground from a fuse panel
or other location under the dashboard, make sure it is a constant 12 volt
source and not one that is switched off with the ignition key. We also
recommend the circuit should have as few devices as possible to avoid
Figure 2.2 –VSS Plug-in
Figure 2.3 –DMI Plug-in
Figure 2.4 –Power Plug-in