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RS485 HUBs

( number of products: 3 )

End your bus topology limitations. Build a reliable star topology RS485 network.

Tired of troubleshooting and downtime on long RS485 daisy-chains? Our 4-port RS485 hubs (splitters) are a revolution in network design. They allow you to create a robust star topology where the failure of one segment doesn't affect the others.

With 3kV galvanic isolation and intelligent, automatic signal routing, you get maximum stability, safety, and installation flexibility.

Why is a Star Topology Superior?

A traditional RS485 bus (daisy-chain) is vulnerable—a cable fault or device failure can bring down the entire network. Our RS485 hub (1 input, 3 outputs) solves this problem by creating 3 independent, separated branches.

Greater Reliability: A fault in one branch has no impact on communication in the others.
Easier Diagnostics: You can locate and isolate a problematic network segment much faster.
Wiring Flexibility: A star topology is often simpler and more cost-effective to wire in large facilities.

Choose the Isolation Level Perfect for Your Application

We understand every installation is different. That's why we offer three hub variants, allowing you to optimize cost and protection:

H01 Model (Full 3-Way Isolation): The no-compromise solution. Provides 3kV isolation between the input port, all three output ports, and the power supply. It guarantees the highest level of protection for critical industrial systems.
H02 Model (Branched Side Isolation): The smart choice for protecting field devices. It galvanically isolates the three output branches from the input and from each other, protecting them from noise and potential differences.
H03 Model (Main Side Isolation): Ideal for protecting your Master controller. It galvanically isolates the input port from all three output ports, safeguarding your PLC or computer from network issues.

Key Advantages That Give You an Edge:

Intelligent Signal Routing: The hub automatically manages data direction, regenerating and boosting the signal on every port. It operates transparently to your system at speeds up to 115200 bps.
Flexible Configuration: Each of the four ports features an individual, switch-activated 120 Ohm terminator, which dramatically simplifies network setup.
Industrial-Grade Durability: Guaranteed reliable operation in temperatures from -40°C to +75°C and ESD protection on all data lines.
Compact Installation: The slim (17.5 mm) DIN-rail enclosure saves valuable space in your control cabinet.

Expand Your Communication System

An RS485 hub is the perfect center for your network. See what else you might need:

Need to just boost a single line? Check out our RS485 Repeaters.
Want to connect an RS232 device to your network? Use our RS232 to RS485 Converters.
Want to share your entire RS485 network over Ethernet? Discover our Serial Device Servers.