Dynon Avionics EFIS-D6 Installation Guide - Manual (Page 45)

Appendix
EFIS-D6 Installation Guide 5-15
Appendix C: Encoder Serial-to-Gray Code Converter Installation
INTRODUCTION AND DESCRIPTION
The Encoder Converter is an electronic device that receives the serial encoder data from the
EFIS-D6 and outputs standard Mode-C parallel Gray code into your Mode-C transponder. This
Encoder Converter requires data from the EFIS-D6 and is not to be confused with other
standalone encoders available on the market. While the installation is not complex, it is
important that you install the unit correctly. The Encoder Converter does not output an encoder
strobe signal.
The Encoder Converter is designed to be powered off voltages between 10 and 30 volts.
TOOLS AND EQUIPMENT
The following parts are not included with your Encoder Converter purchase but may be
necessary to complete the installation.
• Wire cutters
• Connector crimp tool
• Crimp pins
• 25-pin EFIS harness to mate with EFIS-D6 (may have been purchased with your EFIS-D6)
• Connector to mate with Gray code transponder
ELECTRICAL INSTALLATION
The following section describes the wiring requirements for using the Encoder Converter. Please
follow these instructions explicitly as improper wiring can result in permanent damage to your
unit.
RECOMMENDED WIRING PRACTICES
NOTE: Use correct splicing techniques for all electrical connections, taking care to properly
insulate any exposed wire. A short circuit between any of the wires may cause damage to the
Encoder.
The wire used in construction of your Encoder Converter is 22 gauge avionics grade Tefzel wire,
which meets Mil Standard MIL-W-22759/16.
Installing: Make sure all connections are secure and all wires are routed and strain relieved to
ensure that the wires will not chafe against any other object in the aircraft.
STEP 1: TRANSPONDER WIRING
Wire the Encoder Converter signals to their respective connections on your Mode-C transponder.
Mode-C transponder pin-outs vary from device to device. To find the correct pin-out, look at the
manual for your transponder or contact its manufacturer. The table below details which color
wire should be connected to each Transponder pin. All of the wires listed in the table leave one
end of the Encoder Converter in a single bundle. If your transponder has a switched power
output, connect this to the power inputs on the Encoder Converter. If your transponder does not
include this switched power output, the Encoder Converter power connections should be made