> For the complete documentation index, see [llms.txt](https://doc.sysdevmobile.com/kalipso5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.sysdevmobile.com/kalipso5/developing/form/actions/actions-description/group-rfid/serial-close.md).

# Serial Close

Close specified serial port on EMS HF device.

Action available for the following operating systems:

![](/files/8nmky5uY66dHtSih6rzi)