Compact 1 Channel PROFIBUS Repeater
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The PROFIBUS DP Repeater B1 tackles technological limitations of existing repeaters. This compact and easy to use network component complies with the requirements of the demanding modern industry.

Compact 1 Channel PROFIBUS Repeater

The advanced 12 Mbps core of the B1 is identical as the ProfiHub; it can be cascaded without limitations and has increased RS 485 strength. It does not have the frustrating short-circuit bug and the data is constantly monitored for glitches which are digitally filtered out. Every channel has on-board switchable termination and 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 for ProfiTrace.

The redundant power supply enables applications where high availability is required.

Your benefits

  • Short circuit protection on each segment
  • High availability
  • Compact
  • Suitable for all DP cables
  • Low power consumption
  • Conveniently arranged networks
  • Extendable installations
  • Cost saving
Product features


  • 1 Isolated channel (2 segments)
  • Increased RS 485 strength
  • 31 devices per segment
  • 1200 m cable length (depends on the baudrate)
  • No limit in cascading
  • Redundant power supply (19..28 VDC)


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


  • Integrated termination (switches)
  • Diagnostic LEDs to indicate the status of the bus
  • Removable screw terminals and 1 DB9 connector
  • Din-rail mounting
  • IP 20
Products Price Order code Remarks
B1 PROFIBUS Repeater contact us 101-00201A Includes 4 GC-01 – Bus cable grounding clips.
Other related products
More from the product group(s): ProfiHub
ProfiHub B5+RD – 5 Channel PROFIBUS DP Hub with Diagnostic slave device PROCENTEC
ProfiHub B2+R – 3 Segment redundant PROFIBUS DP Repeater PROCENTEC
ProfiHub C5 – 5 Channel DP Spur Repeater (IP 65) PROCENTEC
T1 Terminator – Active Termination for PROFIBUS DP (IP 20) PROCENTEC
T1 Pepper – Adjustable Active Termination for PROFIBUS DP (IP 20) PROCENTEC
B1 Repeater – 1 Channel Compact PROFIBUS Repeater (IP 20) PROCENTEC
D1 Repeater – 1 Channel PROFIBUS Repeater (IP 66) PROCENTEC

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