SkyView ADAHRS installation

[knewby]

Dynon,
Two questions on the SkyView ADAHRS module installation.
1. Maybe I missed it on the diagram, but is the module oriented with
the electrical terminal forward?
2. If planning on dual modules, can they be mounted adjacent to one
another, or is there a minimum seperation requirement?
Thanks,
Kent

 

[dynonsupport]

The connector goes forward, and you can mount them as close to one another as physics will allow.

 

[N707RW]

I think this may be in error. I am a flight tester for the SkyView, and the electrical connector, which is a DB-9, faces aft. There is also a small connector on the aft side which accepts an OAT probe connection.

The front of the ADAHRS accepts the three pressure tubes -- static, pitot, and AOA.

Kind regards,

Rich

 

[dynonsupport]

Ack,
Thanks Rich. Don't know what I was thinking.

The connector does go towards the back, pressure ports to the front.

 

[rockyjs]

Will the ADAHRS installation be as critical (axis) alignment, moving ferrous metal as the EDC10A? Can I get the physical dimensions of the unit so I can build and install a tray? Also the physical dimensions of the Engine module would be helpfull for planning.

Thanks
Rocky

 

[Jamie]

Rockyjs,

all the mechanical drawings are on the left hand side of the Skyview page.

http://www.dynonavionics.com/docs/news_technology_preview.html

 

[dynonsupport]

The alignment will be pretty critical in yaw and roll with respect to the plane, but no more than it is today for the systems where the AHRS is in the panel. Pitch is less so, since it can be adjusted. One of the reasons we put the magnetometer inside the AHRS was so that you didn't have to get them tightly aligned.

 

[rockyjs]

Thanks Dynon
Jamie don't know how I missed them before. Thanks

 

[Ken_Kopp]

couple of install questions:

How many wires are needed from the AHDARS to the Panel?

If using two AHDARS, is the 2nd module connected independently to the panel? How does system differentiate between two modules - how does it know which is providing correct info?

If using two panels what connection is needed between them?

Thanks

Ken

 

[N707RW]

Ken,

At least I can help you with the first question.

The cable from ADAHRS to screen is a DB-9, with all wires used.  I'm pretty sure you will run a separate DB-9 cable from each ADAHRS to whatever screen it's going to.

The other questions will have to be answered by Dynon support but I can tell you that the EMS also uses a fully populated DB-9 cable.

There's some more data about cabling on the wiki but it's really pretty generic data.  The 9 pin cables are all just 9 wires straight through pin to pin.  There are no wire reverses (like a null modem), it's just pin 1 to 1, pin 2 to 2, etc etc.

Rich

 

[dynonsupport]

All cables are D9, straight through, all wires used.

You can split this connection if needed, so the general wiring is a single cable from the screen back to the AHRS location. If you have two AHRS modules, you split there at the modules. You could technically go from screen to EMS to AHRS to servo if needed.

Each screen has two D9 connectors on it that are identical. So each screen is basically a splitter. The same D9 cable runs between screens if you have more than one screen.

Dynon will be selling straight cables and Y cables in various lengths. It is important that if you run your own cables, pins 1&6 are twisted and pins 4&8 are twisted.

Modules of the same type (like two AHRS modules) are identified by serial number. For now, the user has to manual choose which AHRS they want to use (but this is easily switchable in flight). Future software will help automate this and will hopefully implement a voting system as well if you have enough data sources available.

 

[PhantomPholly]

Ack,
Thanks Rich. Don't know what I was thinking.

The connector does go towards the back, pressure ports to the front.

You were thinking that the connector on the ADHARS for the original series faces forward..

 

[RockFLY]

Guys,

This is one area that would bother me in terms of redundancy - splitting the signal wires between the two ADAHRS and only running one loom to the SkyView network. I.e. if one wire breaks connection, both SkyViews lose signal.

Cheers, Stu

 

[dynonsupport]

All wires in the SkyView network are already redundant. There are two powers, two grounds, and two data pairs on every cable. So no single wire break can cause an issue.

 

[RockFLY]

Roger, thanks.