A second EDC (Engine Data Converter) may be connected to the MVP-50 in order to increase the number of analog
input to over 60. The primary EDC must already be installed per the MVP-50 installation instructions. The secondary
and the primary EDC's are identical units.
A2.0 Appendix: Connecting a Second EDC to the MVP
1. Mount the Second EDC:
Mount the second EDC to the inside firewall or in an equipment bay under the aircraft instrument panel. Use the holes
in the bottom plate of the EDC to mount the unit. Be sure you will have enough room to connect the three D-sub
connector wire harnesses to the EDC.
2. Install the Transducers (Sold Separately):
Find an appropriate location for each of the transducers you are connecting, and mount them following the MVP-50
installation instructions.
3. Install the EDC Wire Harness and Route the Transducer Extension Wires:
When routing the EDC wire harnesses refer to the Top, Middle and Bottom "EDC Wiring Work Sheets" found in the
MVP Installation Instruction Manual. The pin designations for the wiring harnesses on the secondary EDC are exactly
the same as on the primary EDC. Follow the MVP-50 installation instructions when connecting the wires from the
secondary EDC wire harness to any transducers. Tie wrap all wires so they do not obstruct the freedom of travel
of any controls.
4. Route the Power and Ground Wires to the Secondary EDC Wiring Harness:
Route the power wire (Top Connector, pin 37, Red Wire) to the MVP/EDC 5-amp circuit breaker. Route the ground
wire (Top Connector, pin19, Black Wire) to the aircraft ground. Tie wrap all wires so they do not obstruct the
freedom of travel of any controls.
5. Route the EDC RS422 Wire to the MVP Connector:
Route the secondary EDC RS422- Pin 18 white/green wire to pin 11 (Port3, RS232In) of the MVP 25-pin D-sub
connector. Do not connect the secondary EDC RS422+ white wire to the MVP.
Primary EDC (Required)
Pin 36 (Wht)
Pin 18 (Wht/Grn)
Pin 18 (Wht/Grn)
MVP-50
Pin 12
Pin 13
Pin 11
Top Connector
Top Connector
25-pin D-sub
Connector
Attention: Do not connect the
white wire (pin 36) of this EDC
to the MVP.
82
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