Dynon Avionics EMS-D10 Installation Guide - Manual (Page 33)

EMS-D10 Installation Guide 4-1
4. INSTRUMENT INSTALLATION
This section provides you with the information needed to physically and electrically install the
EMS-D10.
Power Bus Wiring
Connect pin 1 on the 37-pin harness to your
avionics bus through an appropriately sized fuse or
circuit breaker. Connect pin 3 to electrical ground
on your avionics bus. Pins 1 and 3 form the
primary current path for supplying the EMS-D120
with power; ensure that you are very familiar with
the Grounding section on page 2-2.
Dynon Avionics recommends not connecting the
Keep Alive wire when the EMS-D10 is connected
to a DSAB network and/or GPS. Keep Alive is only used in a standalone EMS installation to
keep the clock running when the unit is powered off.
Serial Communication Cables
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 EMS-D10 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. This serial port 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 EMS engine data to an external serial device for recording. For
data formats and other information, see the Appendix in the EMS-D10 Pilot’s User
Guide. Note that for the purposes of logging data, version 5.0 of EMS-D10 firmware
added internal data logging and retrieval via the Dynon 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.
EMS
DB37
Pin#
Color Function
1 Red Power (10-30 V)
2 Yellow
Keep Alive (10-
30V, low current)
3 Black Ground