What is BS EN 50090-5-3 – Media and media-dependent layers in home and building electronic systems about?
Media and media-dependent layers have been a common household for many. The use of radio frequencies in these units has now been a very common practice. BS EN 50090-5-3 defines the mandatory and optional requirements for the medium specific Physical and Data Link Layer of HBES Radio Frequency. Data Link Layer interfaces and general definitions that are medium independent are given in EN 50090-4-1 of BS EN 50090-5-3.
Who is BS EN 50090-5-3 - Media and media-dependent layers in home and building electronic systems for?
BS EN 50090-5-3 on conservation of cultural heritage using laser cleaning techniques is useful for:
- Research personnel
- Home and Building Developers
- Home and building based electronic system developers
- Home-based Electrical appliance manufacturers.
Why should you use BS EN 50090-5-3 - Media and media-dependent layers in home and building electronic systems?
Electronic systems operated with radio frequencies needs to be managed as overlapping frequencies can harm varied appliances.
HBES RF Multi, specified below provides the following features:
- more reliability in Frame transmissions in presence of interferers.
- more efficiency when more HBES RF products are installed at the same location.
- mixing of permanent and non-permanent receiving products.
- mixing of fast and slow reaction time devices.
- Listen Before Talk.
Fast RF channels are mainly intended to be used with human controlled applications like for example lights, shutter, Slow RF channels are mainly intended to be used with non-permanent receivers for automatic applications like sensors (smoke, temperature, wind, etc.), heating control, etc.
As described in the scope, BS EN 50090-5-3 defines the RF Physical Layer requirements for:
- HBES RF Ready;
- HBES RF Multi.
BS EN 50090-5-3 also mentions medium access control shall serve for prevention of collisions on the RF medium. For two reasons medium access cannot be completely controlled on RF.
- Unidirectional senders access the medium at non-predictable times.
- Non HBES RF devices access the medium at non-predictable times.