PLX Devices SM-EGT - Manual (Page 2)

Users Guide: iMFD Sensor Module
Version 1.0 January 23, 2006
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*If you plan to integrate the SM-EGT with other aftermarket devices by utilizing the analog output signal wire. Make sure that the
negative wire (black) is connected as close as possible to your device's ground. This guarantees that both devices "see" the same
reference ground and a more accurate interpretation of the output voltages will be achieved. Please refer to the PLXApp notes online
for more information.
2. Locate the 2.1mm Power plug. Unscrew the plastic cover and insert it into the red/black power wires.
3. Solder or crimp the red power wire to the CENTER of the connector. (12-18V)
4. Solder or crimp the black power wire to the SHIELD of the connector. (GROUND)
(Figure 2)
Using the Sensor Module in the iMFD Chain:
1. If the SM-EGT is the only sensor module or last sensor module in the iMFD chain, be sure to have the termination jumper
installed. Otherwise, remove the jumper. Please refer to (Figure 1) for the location of the termination jumper.
2. Connect the supplied 1ft serial cable according to the diagram below (Figure 3).
(Figure 3)
Using the Sensor Module Analog Output:
1. The SM-EGT has one 0-5V analog output designed to be interfaced with a number of aftermarket products such as engine
management systems, data loggers and tuning electronics. It is not mandatory for you to use this output for your unit to
properly function.
(Figure 4)