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Tackle the technical limitations of existing PROFIBUS repeaters

The advanced 12 Mbps core of the B1 is comparable to the ProfiHub: it can be cascaded without limitations and has increased RS 485 strength. Furthermore, every channel has on-board switchable termination and is able to drive 31 devices.

The removable screw terminals of the PROFIBUS interface are pinned-out in a way that reversed mounting of the repeater does not impact existing wiring. A DB9 connector is provided to connect diagnostic tools. The redundant power supply increases the reliability of the application.

This compact and easy to use network component complies with the requirements of the demanding modern industry to increase the PROFIBUS cable length and amount of connected devices.

More benefits

  • Extendable installations
  • Recovery of corrupted data bits

Product Information

  • Suitable for all DP cables
  • Low power consumption
  • Redundant power supply
  • No address required
  • No limit to cascading
  • Short circuit protection on each segment
  • Integrated termination (switches)
  • Removable screw terminals and a DB9 connector
  • Monitoring port on the outgoing segment
  • IP20
  • UL listed
  • CE declared
  • FCC verified


  • Dimensions (LxWxH): 106 x 55 x 37 mm (excluding plug-able connectors)
  • Weight: 126 grams (excluding plug-able connectors)
  • 2 galvanically isolated channels


  • Operating voltage: 24 VDC
  • Absolute max. rated voltage: 19 … 28 VDC
  • Nominal power use: 1 W
  • Input current(24VDC): 43 mA


  • Transparent for all PROFIBUS DP protocols
  • Suitable for PROFIsafe and MPI
  • 9.6 kbps … 12 Mbps (automatic detection)
  • No address required


  • DB9 monitoring port
  • Dynamic spur lines to devices
  • Star, tree, and bus structured networks
  • Pull/Plug motor control centers
  • The barrier for non-galvanic isolated equipment
  • EMC-sensitive applications
  • Applications with device and cable stress

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We are fully committed to providing our customers with the very best products and customer service. We believe in going the extra mile to ensure that each customer is satisfied with our products and solutions. We have the experience and the reputation in the field to deliver the products customers need to expedite their projects and assure quality every step of the way.


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