Connecting The Wiring - CarNetix PSU-PC19 DC Installation Manual

2.3 Connecting the Wiring

After you have set the jumpers for the options and performance of the PSU-PC19 you can connect
the input and output wiring. The steps outline below should be followed to insure proper operation
of the PSU-PC19 and Xenarc SC8.
Step 1 – Connect the input power and ignition to the PSU-PC19.
Use heavy gauge wire directly connected to the battery (via 15A fuse and distribution block).
4-8 GA wire is recommended if the SC8 runs a 2-3GHz processor. 8-10 GA wire is
recommended for lower speed processors. Using wire that is too small will cause the SC8 to
not survive engine cranking. Connect the battery wire to BOTH red input wires on J1 (pins 3
& 6).
Step 2 – Connect Ground to the PSU-PC19.
We recommend that you either run another wire directly to the battery, or connect directly to
the car chassis for grounding the PSU-PC19. If you run a wire to the battery, make sure it is
that same size as your +12V battery wire used in step 1. If you run a ground wire to the car's
chassis, make sure to find a secure ground that is not corroded or painted and use the same
size wire as your +12V battery wire used in step 1.
Step 3 – Install optional Valet Switch.
A simple SPST switch installed in series with the ignition wire will allow you to manually
disable the PSU-PC19 so that it does not come on when the ignition is turned on. This is
optional and for convenience only
CarNetix PSU-PC19 V2.0 Installation Manual
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