Information technology. Real time locating systems (RTLS). Part 21. Direct Sequence Spread Spectrum (DSSS) 2,4 GHz air interface protocol: Transmitters operating with a single spread code and employing a DBPSK data encoding and BPSK spreading scheme
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations. Part 21. Particular requirements for boxes and enclosures with provision for suspension means