Dynon Avionics EFIS-D10A Installation Guide - Manual (Page 16)

Instrument Installation
Serial Communication Cable
More Information Is Available Online: Serial communication to non-Dynon devices,
and interfacing of other devices in general can be involved and detailed. This Installation
Guide is intended to provide general installation advice for the most common devices and
situations. Dynon’s Documentation Wiki provides enhanced, extended, frequently
updated online documentation contributed by Dynon employees and customers at
wiki.dynonavionics.com .
The EFIS-D10A has one RS-232 serial port that can be used for several purposes. This serial
port can only be configured for one purpose at a time.
The EFIS Serial port (DB25) is used for:
 Connecting to a PC, and using the Dynon Avionics Product Support Program to perform
firmware upgrades, configure checklists, and download internal logs. The Help Files of
the Support Program provide detailed instructions on these functions. The latest version
of the Product Support Program is available on the Dynon web site at
downloads.dynonavionics.com .
 Connecting serial devices such as a GPS receiver or an SL30.
 “Streaming” real-time EFIS flight data to an external serial device for recording. For data
formats and other information, see the Appendix in the EFIS-D10A Pilot’s User Guide.
Note that for the purposes of logging data, version 5.0 of EFIS-D10A firmware added
internal data logging and retrieval via the Dynon Product Support Program.
When an optional HS34 Expansion Module is connected to your Dynon DSAB network,
all GPS and NAV radios must be connected to it. This simplifies the connection and
usage of multiple serial devices. The HS34 also provides interfaces to non-serial devices
such as those with only analog and ARINC-429 interfaces.
PC USB CONNECTION
If you do not have a serial port on your PC, you may use a USB-to-Serial adapter to connect the
EFIS-D10A to your PC’s USB port. You may purchase an adapter from us, Radio Shack, or
many computer stores. If you are using Windows 2000 or XP, ensure that the adapter driver CD
is inserted in your PC before plugging the adapter into the USB port for the first time. If you are
using Windows Vista, ensure that you are connected to the Internet and do not use the driver
CD; the operating system will download the correct driver. Also, do not have your EFIS-D10A
plugged into the USB-to-Serial adapter while installing the driver.
EFIS SERIAL HARNESS
EFIS
DB25
Pin#
DB9
Pin#
Wire
Color
RS-232 Function
9 5 Black Signal ground
10 2 Orange EFIS-D10A transmit /
device receive
22 3 Yellow EFIS-D10A receive /
device transmit
On the EFIS 25-pin wiring harness
available from Dynon, there are three
wires bundled together, terminating in a
standard DB9-pin female connector. This
cable is 6’ long and pre-assembled for
connection to a PC-based laptop. Route
this cable to a convenient location that can
3-4 EFIS-D10A Installation Guide