Serial Input/Output eXchange

SIOX is an asynchronous serial communication bus that uses {{nowrap|300 – 19 200 bit/s}} (default 4800) datarates. Specified by {{nowrap|Telefrang AB}} in Sweden, it is widely used in factories, plants, ships and district heating systems.

The bus can use point-to-point, bus, tree, star and ring topologies {{cite web|title=Telefrang AB - System|url=http://www.telefrang.se/system_index_en.htm}} 081223 telefrang.se and uses a {{nowrap|24 V}} level, with a short-circuit current of {{nowrap|20 – 50 mA}}.{{cite web|title=USB - SIOX ADAPTER|url=http://www.siox.com/download/pdf/U32Brochure.pdf}} 081223 siox.com It is also recommended that twisted pair is used as well as a cable area of {{nowrap|1.5 mm²}}.{{cite web|title=EXOflex Manual|url=http://x-control.dk/files/manualer/exoflex%20manual%20en.pdf}} 081223 x-control.dk {{nowrap|6-bit addresses}} are used, giving {{nowrap|62 valid addresses}}.{{cite web|title=Telefrang AB - Support|url=http://www.telefrang.se/support_index_en.htm}} 081223 telefrang.se