Electronics International MVP-50T - Manual (Page 13)

1.1.4 1.1.4 1.1.4 1.1.4 1.1.4 Wiring & Extension Cables: Wiring & Extension Cables: Wiring & Extension Cables: Wiring & Extension Cables: Wiring & Extension Cables:
The extension cables and wiring provide the connections from the probes, modules or direct connections
to the EDC inputs. Once the Wiring and Extension Cables are installed into the aircraft they become
semi-permanent. Everything else (MVP, EDC, Probes and Modules) can be easily disconnected and
removed.
1.2 Operational Overview:
The MVP system measures an engine or aircraft function using a probe or transducer and displays that func-
tion on the MVP screen using the following steps:
A. A probe is mechanically connected to the aircraft and electrically connected to an EDC input. The
pre-wired harness provides most of the electrical connections from the probes to the EDC inputs.
B. The EDC converts the signals from the probes to a digital format (RS422) and sends the data to the
MVP. The EDC has 33 inputs. Many of the inputs can be used for a number of different types of
functions.
C. The MVP receives the data from the EDC and the data is processed through the MVP as follows:
1. The data received for each EDC input is assigned a function name and probe. Function
names and probes are set up for each EDC input in System Configuration Screen #1. The
probe assigned provides specific calibration algorithms. Calibration algorithms for any
function can be modified in System Configuration Screen #5. Some functions have special
calibration/setup screens (Fuel Tank Calibration, Tach Time, Engine Hours, Flight Time,
Pressure Altitude, Flaps, Trim, etc.).
2. The function is then placed on the Main or System screen of the MVP. System Configura-
tion Screens #2 or #3 allows the placement location of the function to be selected for either
the Main or System screen.
3. The analog and/or digital display of the function (with redlines, limits, colors, etc) is de-
picted on the appropriate screen. Redlines, limits, colors, units, blinking, master warnings
and voice files can be set up for any function in Configuration Screens #4.
Much of the setup for the certified MVP is done at the factory and cannot be changed by the pilot or installer.
See the following Password Protection section for more information.
1.3 Installation Overview:
The installer should start the installation by reviewing the EDC Wiring Work Sheets. There are three work
sheets, one for each of the 37-pin D-Sub connectors on the EDC. The work sheets are packaged with each of
the three EDC wire harnesses. The work sheets provide a list of the functions and probes/transducers included
with this kit. The installation is achieved by performing the following steps:
A. The MVP display is installed. The MVP can be mounted one of two ways; from behind the instru-
ment panel or on a sub-panel, which is then mounted to the aircraft instrument panel from the front.
This method hides the cutout for the MVP case and makes a clean and good-looking installation.
Electronics International has a MVP sub-panel avaliable (see E.I. Price List for more information).
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