Industrial RS485 Hub Cached 4 Masters 1 Slave Aviod Data Conflicts Support More Slaves Industrial Opto-isolaton Support RS232 Slave USR-HUB401S

Industrial-Grade Quality, Built for Harsh Environments
Optical Isolation, Anti-Interference: 2500Vrms high isolation voltage | 500V continuous DC/DC module | stable operation, nosystem crashes.
Wide-Voltage Power Supply: DC 9-40V power input, with short-circuit protection
Robust Interface Protection: ±15KV ESD protection for RS232 ports, 600W TVS lightning/surge protection per line for RS485 ports, serial ports short-circuit/overcurrent self-recovery
Easily achieve transparent bidirectional conversion between RS232/TTL and RS485/RS422.
Industrial-grade isolation ensures stable operation, plug-and-play convenience, and strong anti-interference performance.
Built-in Indicator Lights for Clear Status Visibility
High-Quality Enclosure and Connectors for Robust Durability
Built-in polling commands enable automatic polling and data aggregation from multiple slaves, allowing centralized read/write access via the master.
New slave addresses and starting register addresses can be remapped to improve communication efficiency.
Built-in 2KB large-capacity buffer to avoid data collisions caused by simultaneous polling from multiple masters.
Supports Modbus RTU, DLT645/698 protocols, and user-defined protocols.
Built-in polling commands enable automatic polling and data aggregation from multiple slaves, allowing centralized read/write access via the master.
New slave addresses and starting register addresses can be remapped to improve communication efficiency.
Industrial-Grade Quality, Built for Harsh Environments Four Interface Types Superior Quality, Perfected in Every Detail One-Master-Multi-Slave (Buffered) Data Concentrator Buffered RS485 HUB for Multi-Master-One-Slave Application One-Master-Multi-Slave (Buffered) Data Concentrator