Relcom update on the MTL FOUNDATION™ Fieldbus portfolio
On 12 June 2026, Eaton has completed the acquisition of the intellectual property and manufacturing capability for the MTL FOUNDATION™ Fieldbus, Asi bus and Ethernet-APL portfolio from Relcom Inc.
For all enquiries related to the acquired FOUNDATION™ Fieldbus portfolio, please contact Eaton directly:
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Commercial support: emeasaleschlu@eaton.com
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Technical support: mtltechsupport@eaton.com
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Product line support: niazahmed@eaton.com
Please note that some of Relcom’s non-FOUNDATION™ Fieldbus products are not included in this acquisition and will be discontinued as Relcom concludes its operations.
RELCOM HAS CONCLUDED OPERATIONS AND THIS WEBSITE WILL CEASE BEFORE THE END OF 2026
CARRIER-BAND NETWORK MONITOR

The Relcom Carrier-band Network Monitor (CBM-1) is a diagnostic and maintenance tool for mission-critical networks that have to operate continuously. It is used to observe network operation and measure signals while the network and the control system are active. The Carrier-band Monitor is a passive instrument that examines the network, but does not interfere with its operation in any way. It is a valuable management and maintenance tool for use by field personnel and does not require extensive knowledge of network technology.
The CBM-1 Monitor is used to:
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Determine which stations (also called nodes or devices) are active on the network.
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Measure the signal level of each station and display the current and low signal values.
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Examine signal reflections that indicate damaged cabling or loose connections.
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Measure noise to determine if there is noise pick-up or grounding problems on the network.
These measurements are used to verify that the network is operating correctly, or to detect deteriorating network conditions so that steps can be taken to prevent network down-time, or to help determine what has failed.
The Carrier-band Monitor has been Discontinued. This page is for informational purposes only.
Model
Description
CBM-1
Carrier-band Network Monitor
Datasheet
Instruction Manual
Software Manual
