Detailed Answer
CRC (Cyclic Redundancy Check): the sender calculates a check code for the data and appends it to the end of the frame; the receiver recalculates and compares — if they don't match, the frame is discarded (retransmitted or ignored). CRC detects over 99.99% of transmission errors and is key to ensuring command correctness in industrial remote controls. Every frame of the LIDER LD series contains a CRC check, which combined with rolling code achieves highly reliable communication.
| Principle | Append check code |
| Detection rate | >99.99% |
| LIDER | CRC in every frame |
Note:CRC ensures commands aren't corrupted — the foundation of safe communication.