RS485 Master Extension

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RS485 Master Extension


Incl. 19% Tax, excl. Shipping Cost

Availability: Out of stock

  • Allows cable based interconnection between stacks of Bricks
  • Long distance connections (up to 1200m)
  • Configurable baud rate, parity and stop bits
  • Can be used in existing RS485 networks (Modbus RTU)
RS485 Master Extension   +€26.99

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Please note the non-compatability to Master Brick hardware version 3.1

The RS485 Extension can be used for long range cable based inter-stack communication. It uses the RS485 differential interface standard to achieve ranges of up to 1200m.

To establish a RS485 bus with Bricks, two RS485 Extensions and two Master Bricks are needed. Both Master Bricks can be connected to a full stack of Bricks and Bricklets, whereas one Master Brick is battery powered and one is connected with USB, Ethernet or WIFI to a PC. From a programming perspective the RS485 bus is completely transparent, i.e. the two stacks can be used exactly the same way as if they were both connected via USB, Ethernet or WIFI to a PC.

It is also possible to create a bus with several RS485 Extension where only one is connected via USB (many-to-one routing).

Technical Specification

Current Consuption 8mA
Maximum Distance
Maximum Baud Rate
Dimensions (W x D x H) 40 x 40 x 16mm (1.57 x 1.57 x 0.63”)
Weight 13g

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