# Data "pass-through" to physical COM port on the PC

**URL:** <https://forum.sierrawireless.com/t/data-pass-through-to-physical-com-port-on-the-pc/4881>\
**Category:** Development tools\
**Created:** [February 9, 2011, 4:20pm UTC](https://forum.sierrawireless.com/t/data-pass-through-to-physical-com-port-on-the-pc/4881 "2011-02-09T16:20:01Z")\
**Posts on this page:** 1\
**Showing post:** 2

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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:** [February 9, 2011, 4:39pm UTC](https://forum.sierrawireless.com/t/data-pass-through-to-physical-com-port-on-the-pc/4881/2 "2011-02-09T16:39:35Z")

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> [@edwardofleek](#):
>
> awneil in post
> 
> > [@](#):
> >
> > DS 1.2.0: Traces when in FCM Data Mode
> 
> Mentions the facility to “pass-through” the data to another physical COM port on the PC (as TMT/TE did);

Here: [DS 1.2.0: Traces when in FCM Data Mode - #3 by awneil](https://forum.sierrawireless.com/t/ds-1-2-0-traces-when-in-fcm-data-mode/4876/3)

> [@](#):
>
> Is it correct that 1.2.0 does not support “pass-through”?

Yes, I think that is the case.

> [@](#):
>
> If 1.2.0 does not support “pass-through” where do we download a suitable version of TMT?

It was included in the SDKs before M2MStudio, but the easiest way is to ask your Distributor.

> [@](#):
>
> Will this TMT version work co-operatively with 1.2.0? (as previous releases of DS did)

No.

One of the major changes in the Target Management “refactoring” was to remove Selima - which TMT Relies upon.

You should still, I think, be able to use TMT with an application built by DS 1.2.0 - but TMT cannot share a comms link with DS 1.2.0.

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