# Questions on "Cancelling signalling phases using other door position contacts"

**URL:** <https://community.mobotix.com/t/questions-on-cancelling-signalling-phases-using-other-door-position-contacts/5872>\
**Category:** Door Station - Discussion\
**Created:** [October 1, 2022, 4:39pm UTC](https://community.mobotix.com/t/questions-on-cancelling-signalling-phases-using-other-door-position-contacts/5872 "2022-10-01T16:39:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Thefa](https://avatars.discourse-cdn.com/v4/letter/t/e19adc/32.png) [@Thefa](https://community.mobotix.com/u/Thefa)\
**Post date:** [October 1, 2022, 4:39pm UTC](https://community.mobotix.com/t/questions-on-cancelling-signalling-phases-using-other-door-position-contacts/5872/1 "2022-10-01T16:39:43Z")

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Hello,

I read the article [Cancelling signalling phases using other door position contacts](https://community.mobotix.com/t/cancelling-signalling-phases-using-other-door-position-contacts/5860), thank you.

It seems it is not possible to ask questions as a follow up, so I start a conversation here, let me know if this is not what i was supposed to do.

If I have understood correctly the solution is to simulate a “door opened or closed” indication to the T25, and then trigger this simulation when the real door contact is changed. And then T25 behaves as if there was a real door contact connected.  
Did i understand correctly?

If yes, then, would you mind please be a little bit more specific on the type of devices that I can use to do that? I have googled of course RS232-IO and DoorOpener but I’m not sure I got to the relevant devices.

Thanks,

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**Author:** ![Mx-DirkG](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.mobotix.com/mx-dirkg/32/1343_2.png) [@Mx-DirkG](https://community.mobotix.com/u/Mx-DirkG)\
**Post date:** [October 4, 2022, 12:11pm UTC](https://community.mobotix.com/t/questions-on-cancelling-signalling-phases-using-other-door-position-contacts/5872/2 "2022-10-04T12:11:51Z")

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Hi Thefa,  
i just updated the main article and added the respective modules.

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**Author:** ![Thefa](https://avatars.discourse-cdn.com/v4/letter/t/e19adc/32.png) [@Thefa](https://community.mobotix.com/u/Thefa)\
**Post date:** [October 9, 2022, 7:38pm UTC](https://community.mobotix.com/t/questions-on-cancelling-signalling-phases-using-other-door-position-contacts/5872/3 "2022-10-09T19:38:33Z")

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Thank you. I do have a doormaster module installed and in-use.  
Is it going to be enough or I need on top an IO box module?

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**Author:** ![Mx-DirkG](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.mobotix.com/mx-dirkg/32/1343_2.png) [@Mx-DirkG](https://community.mobotix.com/u/Mx-DirkG)\
**Post date:** [October 18, 2022, 8:50am UTC](https://community.mobotix.com/t/questions-on-cancelling-signalling-phases-using-other-door-position-contacts/5872/4 "2022-10-18T08:50:52Z")

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Yes, works to. Just be aware the Output 1 on the doormaster is reserved for internal door opener ynd you wll need output 2 for this.

r,  
MxDirkG