SkyView HDX System Overview
2-2 SkyView HDX Pilot’s User Guide – Revision B
SkyView Network
SkyView modules such as the SV-ADAHRS-20X (provides flight instrument data), SV-EMS-
220/221 (provides engine instrument data), SV-ARINC-429 (for communication with IFR
GPS/NAV/COM devices), SV-COM-C25/X83 (COM Radio), SV-KNOB-PANEL, SV-AP-PANEL and
Autopilot servos use Dynon Avionics’ redundant SkyView Network to communicate with
SkyView HDX displays.
The SkyView Network is designed to continue to work properly in the event of wiring or module
faults by utilizing multiple power pathways and a redundant data network. In fact, SkyView can
annunciate wiring issues as they are discovered, often while preserving full system functionality
until troubleshooting can be performed on the ground. These alerts are presented in SkyView
HDX’s alerting system, which is described in a later section of this guide.
RS-232 Serial
SkyView HDX displays have five RS-232 serial ports for connection to compatible equipment.
SkyView modules which use RS-232 serial communications include the SV-GPS-250/2020 GPS
receivers, SV-ADSB-470/472 ADS-B receiver, and SV-XPNDR-261/262 transponders. All serial
ports are wired into the SkyView Display Harness (SV-HARNESS-D37). All serial ports have
configurable baud rates and data formats for use as general purpose inputs and outputs.
USB
SkyView HDX displays have three USB ports. Two are built into the back of the display and one
is wired into the SkyView Display Harness for convenience. USB ports are used for transferring
files (firmware updates and backups, database updates, configuration file uploads and
downloads), the optional SkyView Wi-Fi Adapter, and optional SkyView Video Adapter. These
devices must be plugged into the display before power on and remain plugged in for the full
flight. Reference the SkyView Classic / SE / HDX System Installation Guide for instructions on
how to use the USB ports for the operations mentioned above.
When using a USB flash drive with a computer file system, only one USB flash drive is
recognized at one time by the SkyView HDX display. If a second USB flash drive is plugged in,
the second one will not be recognized by the display until the first USB flash drive is removed,
and the second USB flash drive is re-inserted.
USB Flash Drive
Each SkyView HDX display ships with a Dynon Avionics labeled USB flash drive; however, there
is nothing unique about this USB flash drive (other than the label). Any appropriate size USB
flash drive may be used with SkyView HDX. If Procedure Charts, Airport Diagrams and Enroute
Charts are used, a USB flash drive with those database files must reside in one of the display’s
three USB ports while in operation (the files are not transferred to SkyView HDX’s internal
storage).
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