Install 9Xtreme on Iris+ TX

[thcmm]

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Dear forum members,
I am in need of assistance regarding the installation of my 9Xtreme board onto a FS-TH9X TX that came with a 3D Robotics Iris+.

My question is regarding the TX/RX cable that exits the FrSky port on the 9X Extreme board.

Where would I connect the two leads coming from the 9Xtreme's 2 pin FrSky port to the DJT module / back-side circuit board of the TX?

I assume they need to connect to the FrSky DJT module but I am unsure where to make the connection. The DJT leads pass via a Max3232 TTL converter then breakout into two wires that are soldered directly to the original FS-TH9X main board.

Any suggestions would be greatly appreciated....

Cheers,
/Thomas

[MikeB]

When you install the 9Xtreme, two of the spring pins connect to the two pads where the existing telemetry wires connect. You will need to remove these wires and clean off any remaining solder on those two pads.

The 9Xtreme provides a telemetry connection cable with two wires, one black and one white. RS232 buffering is provided on the 9Xtreme, so you do not want the buffer on the back board. You also only need the Tx and Rx signals, the 5V and GND wires going to the RS232 buffer are not needed.
Find which wire is connected to the Tx signal of the DJT and connect this to the black wire from the 9Xtreme. Find the wire connected to the Rx signal of the DJT and connect this to the white wire from the 9Xtreme.
Safely insulate the 5V and GND wires from the DJT, or even remove them altogether.

Mike.

[bob195558]

Also, to locate some more directory info about installing the 9Xtreme Board see here: (viewtopic.php?f=95&t=7182).

Bob B.

[thcmm]

Thanks so much for the help MikeB and bob195558.

I put together a little guide in case anybody else has the same question. Attached....

Cheers,
/Thomas