Hirschmann RS20 OpenRail switch repair and refurbishment.
Power supply repair, port diagnostics, and configuration recovery for Hirschmann RS20 managed switches. No fix no fee.
RS20 repair and refurbishment
The Hirschmann RS20 is the most widely deployed compact managed industrial Ethernet switch in the Hirschmann portfolio, available in configurations from 4 to 25 Fast Ethernet ports with optional fiber uplinks. The RS20 is installed across UK process industries, power utilities, and transportation networks. We carry out board-level repair on RS20 units — focusing on power input faults, port failures, relay output repair, and configuration recovery.
Common RS20 faults we fix
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Power input circuit failure on one or both 24VDC redundant inputs, leaving the switch without power redundancy or completely unpowered
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Alarm relay contact wear causing the fault relay output to fail to trigger on power loss or port failure events
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RJ45 port failure from ESD damage or PHY chip faults, presenting as a dead port while remaining ports operate normally
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Configuration loss after internal supercapacitor failure, causing the switch to revert to factory defaults on power cycle
How it works
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1
Send details
Share the switch model, fault symptoms, and any alarm LEDs or diagnostic output.
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2
Diagnostics
Bench diagnostics isolate the fault to board, component, or subsystem.
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3
Repair, Refurbish & Test
Component-level repair with port validation and management system testing before return.
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4
Return to service
Confirmed test results and return logistics for your switch.
Why Electron Lab
- Engineer-led bench diagnostics
- Component-level repair and rework
- Tested Before Return
- Clear, fast quoting
RS20 repair FAQs
Can you repair a Hirschmann RS20 with a failed power input?
Yes. Power input failure is the most common RS20 fault. We diagnose the input circuit at board level and carry out the component-level repair.
My RS20 loses its configuration every time it power cycles — what is wrong?
Configuration loss on power cycle indicates a failed internal supercapacitor or backup battery. We replace the failed component and verify configuration retention before return.
Do you repair all RS20 port configurations?
Yes. We service RS20 units across the full range — from 4-port to 25-port configurations, including variants with fiber uplink ports.