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The ComBricks Fiber Optic Ring module for multi-mode technology (ComBricks FO Ring MM) ensures reliable optical data transmission in PROFIBUS networks. This multifunctional module is specifically designed by PROCENTEC to create optical redundant ring topologies with multimode fiber optics. It allows long cable distances up to 5 km and a galvanic isolation between devices and segments. The ComBricks FO Ring MM module is especially suitable for applications in heavy EMC environments such as oil & gas, waste treatment and cranes.


The ComBricks FO Ring MM module contains diagnostic LEDs which indicates the detection of a low level on the optics. Just like any other communication module, the channels are connect directly to the ProfiTrace OE core in the Head Station. An advanced email functionality will alert you when faults like low level or broken ring arise. Because busmonitor data is directly available in the web server, it allows technicians to optimal maintain a PROFIBUS installation.


ComBricks FO Ring MM can be placed side by side with repeater modules allowing spur line diagnostics. It can also easily be used as a fully dedicated fiber optic modules mixed with copper segments. The advanced 12 Mbps core of the fiber optic module can be cascaded unlimited with other fiber modules.

PROFIBUS Multi-Mode Fiber Optic Ring

SKU: 101-201530
    • Fiber optic characteristics
    • 2 Fiber channels (multi-mode)
    • Max. 5 km cable length
    • Ring, point-to-point and line topologies
    • 4 ST/BFOC connectors
    • Multi-mode cable G62.5 / 125 (OM1) - 1310 nm
    • Ring redundancy (switchable)
    • No limit in cascading
    • Optical budget: 13dB
    • Optical loss: 2dB per km
    • Head station firmware: 1.288 and higher
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