Glossary term

CSMA/CA

communicationIntermediate

Definition

"Carrier Sense Multiple Access with Collision Avoidance": bus arbitration mechanism for KNX TP1. Exploits the dominant character of bit 0 to resolve collisions without destroying the telegram.

Questions using this term

DALI-2 supports several application controllers active on the same bus (multi-master), with an arbitration mechanism that prevents conflicts when two controllers try to command the same control gear at the same time.
4. Application Controllers · Multi-Master

Practice now

See how exam-ready you really are

10 real certification questions, no account needed. Find your gaps in under 5 minutes — free.

Start the quiz →View pricing