PLX Devices DM-200 OBDII - Manual (Page 9)

Users Guide: iMFD User Guide
Version 1.0 Jan 1, 2008
www.plxdevices.com
(408)745-7591
9
3 Hardware
3.1 Connecting Power
Option 1: Using the Cigarette Lighter Power
This option is ideal if your cigarette lighter power is only ON when your ignition key is turned. In some
vehicles, your cigarette lighter power is always ON. Leaving your DM-200 OBDII unit always powered on,
will drain your vehicle’s battery quickly. If this is the case for your vehicle, we recommend option 2.
Plug the 2.1mm power plug to the DM-200 OBDII main control box where indicated “POWER.” Plug the
cigarette lighter adapter connector into your cigarette lighter power plug in your vehicle.
Option 2: Hardwire your power connection
CAUTION! CONNECTING THE DM-200 OBDII IN REVERSE POLARITY
WILL DAMAGE THE UNIT! CHECK CONNECTIONS BEFORE POWERING
ON.
The DM-200 OBDII accepts 12-18V DC for power. Connect the negative wire (black) to your vehicle’s
ground. This is usually the negative terminal of your automobile’s battery. Connect the positive wire (red)
to your vehicle’s ignition power. This power is only supplied when your key is turned passed a specific
position and is off when your key is removed. Your power connection must be capable of supplying at least