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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)
  • Connection speed: 9.6 kbps..12 Mbps (automatic detection)
  • 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
  • 1 galvanicly isolated channel
  • Non DP cable

Want more information? Ask us.

Pascale Noyens NLD, ENG, GER, FR

Pascale Noyens

Sales Manager
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.

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GSD files

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Software & Firmware downloads

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    16 September 2019, 28 October 2019

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

  • PROFIBUS Troubleshooting & Maintenance

    16 September 2019, 17 September 2019, 28 October 2019

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

  • Certified PROFIBUS Installer

    16 September 2019, 17 September 2019, 28 October 2019

    The Certified PROFIBUS Installer course is essential for electrical engineers and technicians requiring the necessary installation and testing skills for their PROFIBUS DP/PA projects.

Training overview