for cash register systems in belgium, it is mandatory to connect black box module. this module registers everything in its memory so that the government can read it out. technically I do not know how this module works. there are brands such as cleancash sc-b, farex secure box, … can I adapt these to my samba?
You need to give more info on these to get advice.
I’d guess they are similar to other government required systems others have discussed in the past. Some you setup like a printer and data is sent out to them in that type of format, others I think receive data like an API.
At minimum you need to offer a link to details about the devices…