Y402-4411-L Wireless I/O Sync System Manual

Refer to the detailed specification for electrical ratings, pinouts, and installation requirements: Y402-4411-L Specification.

Overview

The Y402-4411-L is a 4-to-1 mapping wireless I/O synchronization system. The master and slaves use sub-GHz LoRa to mirror input state changes across four DI/DO channels for license-free remote control.

Basic Setup

1. Power all nodes with a stable DC supply as specified in the datasheet.
2. Use factory-paired units or pair new slaves following the method in the specification.
3. Wire dry-contact inputs to the DI terminals; do not apply active voltage signals.
4. Connect relay outputs via NO/COM/NC according to your load type.
5. Mount antennas vertically, clear of large metal objects, to maximize range.

Safety Notes

• Use certified power supplies and correct polarity.
• Avoid explosive, high-humidity, or dusty environments.
• Keep antennas within the specified operating band to maintain link reliability.