Installation Guide Manual

EFIS-D10 Installation Manual
EFIS-D10 Installation Guide Doc Num: 100006-000 Rev. C
9/11/2003 Page 7 of 24
ELECTRICAL INSTALLATION
The following section describes the wiring requirements for using the EFIS-D10. Please follow
these instructions explicitly as improper wiring can result in permanent damage to your unit.
All electrical power and data lines interface with the EFIS-D10 via the 25-pin D-Sub connector
on the back of the unit. You should ensure that all electrical connections are tested and properly
working before completing the final physical assembly.
Recommended wiring practices
NOTE: For all electrical connections, use correct splicing techniques, taking care to properly
insulate any exposed wire. A short circuit between any of the wires may cause damage to the
EFIS-D10 and/or your airplane.
Dynon Avionics does not supply connectors or wire for wiring up your EFIS-D10 and/or EDC-
D10 Magnetic Sensor Module. We recommend that standard aircraft grade wiring and
connectors be used during installation.
Wire: 22 gauge is sufficient for all signal wires such as those to the EDC-D10 Magnetic Sensor
Module. 22 gauge wires is normally sufficient for the power supply and ground lines, but you
should consult a wire sizing chart and determine the size required for your routing length. Make
sure you protect the power lines with either a circuit breaker or fuse sized appropriate to the wire
you select.
The EFIS-D10 system-wide power requirements are 8 Watts typical and 20 Watts maximum.
With a 12 volt system, a 2 amp circuit breaker or fuse is sufficient. We recommend you use wire
meeting Mil Standard MIL-W-22759/16 (Tefzel insulation) which is available from various
suppliers such as Aircraft Spruce. Another option is to use Teflon insulated wire (Alpha brand is
available from Mouser electronics www.mouser.com) which is available in various colors.
Connectors: The EFIS-D10 uses high quality machined pin D sub connectors and we recommend
you use machined pin connectors as mates. One source of the machined pins is B&C Specialty
Products (www.aeroelectric.com/Catalog/BCcatalog.html) which also supplies the required
crimp tool. Crimp connections have proven to be the most reliable in aircraft installations. D sub
shells to hold the pins are available from various sources such as Mouser mentioned above.
Purchasing high quality connectors is a very wise investment in your aircraft.
Installing: Make sure all connections are secure and all wires are routed and strain relieved to
ensure the wires will not chafe against any other object in the aircraft.