# fastrack supreme dev kit

**URL:** <https://forum.sierrawireless.com/t/fastrack-supreme-dev-kit/3752>\
**Category:** Legacy FX/FXT series\
**Created:** [October 17, 2009, 1:44pm UTC](https://forum.sierrawireless.com/t/fastrack-supreme-dev-kit/3752 "2009-10-17T13:44:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![tobor](https://avatars.discourse-cdn.com/v4/letter/t/82dd89/32.png) [@tobor](https://forum.sierrawireless.com/u/tobor)\
**Post date:** [October 17, 2009, 1:44pm UTC](https://forum.sierrawireless.com/t/fastrack-supreme-dev-kit/3752/1 "2009-10-17T13:44:00Z")

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I just received the kit and going through the documentation it appears I need 2 serial connections to start developing. UART1 to create a PPP to the WAN, and UART2 to connect to develop on. Is this the only way to develop on it? Do I need to wire a connector to the expansion board with rs232 level conversions? Forgive me if this is in the wrong forum.  
thanks,  
Bill

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [October 17, 2009, 2:54pm UTC](https://forum.sierrawireless.com/t/fastrack-supreme-dev-kit/3752/2 "2009-10-17T14:54:25Z")

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> [@tobor](#):
>
> I just received the kit and going through the documentation it appears I need 2 serial connections to start developing.

You really should have discussed this with your supplier before parting with your hard-earned cash!

> [@](#):
>
> UART1 to create a PPP to the WAN,

What do you mean by “the WAN” here?

If you mean the GPRS netwok - then you don’t need UART1 to do that!

> [@](#):
>
> and UART2 to connect to develop on. Is this the only way to develop on it?

It can ceratinly make things a lot easier, but it is by no means essential!

You can use UART1 for both your application and debugging - see: [viewtopic.php?f=53&t=2509&p=11123&hilit=external+com#p11123](http://www.wavecom.com/modules/movie/scenes/forums/viewtopic.php?f=53&t=2509&p=11123&hilit=external+com#p11123)  
See also: [viewtopic.php?f=78&t=4035&p=16025&hilit=MuxConfTool#p16022](http://www.wavecom.com/modules/movie/scenes/forums/viewtopic.php?f=78&t=4035&p=16025&hilit=MuxConfTool#p16022)

> [@](#):
>
> Do I need to wire a connector to the expansion board with rs232 level conversions?

The IESM provides RS232 levels - see its User Guide.

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<div class="post-metadata">

**Author:** ![tobor](https://avatars.discourse-cdn.com/v4/letter/t/82dd89/32.png) [@tobor](https://forum.sierrawireless.com/u/tobor)\
**Post date:** [October 17, 2009, 4:08pm UTC](https://forum.sierrawireless.com/t/fastrack-supreme-dev-kit/3752/3 "2009-10-17T16:08:30Z")

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Thanks for the feedback. Where I am getting lost is in the lua-tutorial.pdf, it states the OpenAT application is running on UART2. Is it possible to connect to that application using UART1? So far the username and password will not allow me a connection on UART1, although I can connect to the network without username or password.

thanks,  
Bill