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Terminator T1 Pepper

Terminator T1 Pepper

The T1-Pepper provides customizable (active) termination for PROFIBUS segments that do not comply with the standard RS 485 impedance. With rotary switches the impedance of the termination can be set.

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PROFIBUS networks exist that have not been wired with proper cable or where it is mandatory to use existing twisted pair cable. The T1-Pepper is an excellent solution to adapt the termination to the impedance of the cable. It can also be used to increase the idle line voltage on segments where interference causes communication disturbances and the large connectors allow specialty cable or more cable stress.


2 Rotary switches manipulate the values of the termination network. One for the middle resistor and one for the 2 pull-up resistors. The combination of both set the impedance and the level of the idle voltage. The T1-Pepper is a partner product for the COMbricks SALT repeater that requires termination at the other side of the cable. The rotary switches have to be set identical at both sides.

The T1-Pepper can be used by all fieldbuses that require active termination. It has a redundant power supply and diagnostic LEDs to indicate the status of each power source. It can be installed on a standard DIN-rail.

Technical specifications

Termination specifications

  • 94 .. 940 Ohm (DC) - 57 .. 1500 Ohm (AC)
  • 9.6 kbps..12 Mbps
  • Removable screw terminals

Power supply specifications

  • Operating Voltage: 19..28 VDC
  • Current consumption: < 60 mA
  • Redundancy: Power 1 OR 2
  • Diagnostic LEDs to indicate the status of the power supply

Ambient conditions

  • Operating temperature: -20..+60 °C

Dimensions and weight

  • Dimensions (LxWxH): 106 x 55 x 33 mm (without plugs)
  • 125 g


  • DIN-rail mounting
  • IP 20

Want more information? Ask us.

Haydar Al Sawad NLD, ENG, ARA

Haydar Al Sawad

Haydar Al Sawad
T: +31 (0)174 671800


All available downloads for the T1 Pepper are available down here.

User Manual


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

Service & Support


Check the most frequently asked questions about ComBricks.

On-site & Online Support

Worldwide PROFIBUS and PROFINET support; on-site and online.

Network Certification

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GSD files

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Software & Firmware downloads

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  • Certified PROFIBUS Engineer

    06 June 2016, 10 October 2016, 12 December 2016

    'Distinguish yourself from the others and show that you are the expert.....Become a Certified PROFIBUS Engineer.'

  • PROFIBUS Troubleshooting & Maintenance

    06 July 2016, 14 September 2016, 16 November 2016

    The PROFIBUS Troubleshooting and Maintenance training course is fully concentrated on those who install and maintain PROFIBUS installations.

  • PROFIBUS Troubleshooting & Maintenance - USA edition

    06 June 2016, 08 June 2016

    The PROFIBUS Troubleshooting and Maintenance training course is fully concentrated on those who install and maintain PROFIBUS installations.

Training overview