= ALPAO DM 97-15
== Ethernet connection
To communicate with the ALPAO DM 97-15 control electronics, follow these actions (under MS Windows 10):
- Choose a static IP address for the electronics, such as `192.168.103.70`
- Turn OFF ALPAO control electronics

=== Install ALPAO control electronics driver and SDK
- Provide yourself with a copy of ALPAO provided USB key, (it contains the ALPAO Software Development Kit)
- **Copy** the content of the USB key on your PC
- Open the `Config` directory 
- **Move** the file `BAX191.acfg` on your Desktop (this is to circumvent previleges access issues) 
- Modify the file `BAX191.acfg` by deleting its content and writing:
  {{{
  interface eth ip <insert the chosen IP address> startChannel 0 deVersion 7
  }}}
- Save the file `BAX191.acfg` and close the editor
- **Move** back the file `BAX191.acfg` to `Config` directory
- If running F-Secure, disable it
- Start the ALPAO setup program
- **When requested to choose the driver to install, choose USB**

- When the installation is finished, turn ON ALPAO control electronics

=== Change ALPAO control electronics IP
For this, you find detailed instruction in the Ethernet Static IP manual, stored in the `Manual`directory in the ALPAO USB.

When asked to change the file `BAX191.acfg`, just check its content, it should already contain the correct values.

=== Check the connection 
Run the file `example.exe` stored in the installed directory `C:\Program Files\Alpao\SDK\Samples\MSVC\Bin`

The connection works if, while `example.exe` runs:
- the data LED in front of the electronics blinks
- the link LEDs on the back side of the electronics blink

`example.exe` moves each actuator one by one, it is not a bad idea to check this in front of an interferometer ;).