# DSMR binding / Only physical ports?

**URL:** <https://community.openhab.org/t/dsmr-binding-only-physical-ports/31547>\
**Category:** Bindings\
**Tags:** dsmr, moxa, virtualport\
**Created:** [July 13, 2017, 6:25pm UTC](https://community.openhab.org/t/dsmr-binding-only-physical-ports/31547 "2017-07-13T18:25:12Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mrwee](https://community.openhab.org/letter_avatar_proxy/v4/letter/m/6a8cbe/32.png) [@mrwee](https://community.openhab.org/u/mrwee)\
**Post date:** [July 13, 2017, 6:25pm UTC](https://community.openhab.org/t/dsmr-binding-only-physical-ports/31547/1 "2017-07-13T18:25:12Z")

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Just installed the 1.10.0 version of this binding, and ran it on my Windows 7 machine (running on a VirtualBox). It cannot find the COM port which actually is a virtual port mapped towards a Moxa Nport serial server. If I run putty on the COM port, I can communicate with the electrical meter, so I’m wondering if this binding ‘only’ supports physical ports?

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**Author:** ![namraccr](https://community.openhab.org/user_avatar/community.openhab.org/namraccr/32/36484_2.png) [@namraccr](https://community.openhab.org/u/namraccr)\
**Post date:** [July 14, 2017, 1:04am UTC](https://community.openhab.org/t/dsmr-binding-only-physical-ports/31547/2 "2017-07-14T01:04:29Z")

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If you enable debug logging, you should see a list of the ports that are autodetected.

The binding relies on the [gnu.io](http://gnu.io) package, so I would think whatever that package supports should also work here.

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<div class="post-metadata">

**Author:** ![mrwee](https://community.openhab.org/letter_avatar_proxy/v4/letter/m/6a8cbe/32.png) [@mrwee](https://community.openhab.org/u/mrwee)\
**Post date:** [July 14, 2017, 2:27pm UTC](https://community.openhab.org/t/dsmr-binding-only-physical-ports/31547/3 "2017-07-14T14:27:58Z")

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ok, will try. Going on vacation, so I’ll try when I’m back home