Detailed Answer
Pairing is the process of binding a transmitter and receiver with a unique communication code. Once paired, only the paired transmitter can control that receiver, preventing cross-interference and misoperation. LDER uses one-key pairing: press the transmitter pairing key and receiver pairing key at the same time; XINGJIA supports DIP switch and learning-code pairing. When multiple units work on the same site, each set must be paired independently, otherwise they may control each other by mistake.
| Methods | One-key pairing / DIP switch |
| Function | Prevents cross-interference |
| Requirement | Independent per set |
Note:Re-pairing is required after replacing the transmitter or receiver.