MPI-1 Description
General
The Multi Protocol Interface (MPI) allows your computer to communicate with modules using appropriate protocol and wiring. The MPI translates the different module protocols and signals into a standard RS-232 based protocol that is suitable for your personal computer.
Hardware
The MPI includes 2 communication connectors and one power jack located on the back panel of the box (see figure below). On top, there is a DESS® key housing and three status LEDS. The following table lists the MPI hardware components:
Component |
Description |
Serial port |
Connects the MPI to your computer (computer icon). |
Diagnostic port |
Connects the MPI to the vehicle (engine icon). |
Power jack |
Connects the MPI into a domestic power outlet. |
Internal battery pack |
Four AA batteries located underneath the MPI. |
DESS key housing |
Allows you to program DESS keys. |
ON LED |
Indicates that the MPI is powered. The LED blinks when the MPI is powered by the internal battery pack. |
Rx/Tx MPEM LED |
Indicates that the MPI is transffering data to a module. |
Rx/Tx PC LED |
Indicates that the MPI is transffering data to your computer. |

Software
The MPI contains identification parameters. Upon startup, B.U.D.S. reads these parameters and displays them into the MPI Information window.