ComBricks PROFIBUS Fiber Optic Ring Module: Multi-Mode


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MPN: 101-201530

Manufacturer: Procentec

Delivery: Ships within 7-14 business days
Qualifies for Free shipping to the US

Fiber Type

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Product Information

Product Description

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The ComBricks PROFIBUS Fiber Optic Ring modules enable the creation of a redundant fiber optic ring, as well as traditional point-to-point and line topologies.


The modules are available in

  • Multi-mode (MM),
  • Single-mode (SM),
  • or Combination mode (XM) with 1 Multi-mode and 1 Single-Mode channel.

Fiber optic links are ideal for providing galvanic isolation between devices and segments, as well as for extending networks. For Single-mode channels, the distance between modules is 30 km, while for Multi-mode the maximum distance is 5 km between modules.

The modules have LEDs to indicate “low signal level” of the light signals on the fiber. A ComBricks headstation with ProfiTrace OE provides busmonitor data for the modules via a web server, allowing for easy maintenance and monitoring of the PROFIBUS installation. Should any errors occur, such as “low signal level” or “broken ring”, an advanced emailing system or SNMP can be used for immediate notifications.

All modules support all PROFIBUS DP baud rates up to the maximum 12Mpbs. Fibers are connected to ST/BFOC connectors on the modules.

Suitable in EMC environments
The fiber optic rings were created specifically for optical redundant ring topologies and especially suitable for use in heavy EMC environments, such as waste and water treatment, mines, cranes or tanks.The following table providesr assistance in selecting the best module for your purposes.


Order Summary



Fiber Type

Manufacturer Part # (MPN)

GC-PB-CB-FOR-SM-SM Single-Mode 101-201531
GC-PB-CB-FOR-MM-MM Multi-Mode 101-201530
GC-PB-CB-FOR-SM-MM Single & Multi Mode 101-201532


  • 2 Fiber Optic Channels
  • Ring Redundancy (Switchable)
  • Ring, Point-to-Point and Line Topologies
  • 4ST/BFOC Connectors
  • Low Level Display
  • Notification Emails
  • Transparent for all PROFIBUS Protocols
  • Unlimited Cascading

Documents and Drivers


ComBricks User Manual

ComBricks Fiber Optic Ring Single Mode Datasheet

ComBricks Fiber Optic Ring Multi Mode Datasheet

ComBricks Fiber Optic Ring Single & Multi Mode Datasheet



  • 4 networks selectable with switches
  • 10 modules (positioned in the first 10 slots)

Cable Length

  • Single-Mode: Max Cable Length 30km
  • Multi-Mode: Max Cable Length 5km

Cascading Depth

No limits


2 fiber optic channels


4 ST/BFOC-connectors


101-201531, 101-201530, 101-201532


  • Transparent for all PROFIBUS protocols
  • 9.6 kbps – 12 Mbps (auto detection)
  • No PROFIBUS address required

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