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Layer 2 Modular Managed Switch – IEC 61850-3 – 16x Gigabit + 4x 10G SFP+ – modular copper/fibre options – IEEE 1588 PTP – dual LV/HV power – Extended wide -40 to 75°C operation
Moxa Products Supplied To the UK, From the UK
As an official UK distributor of Moxa products since 2014, we at Impulse are proud to be affiliated with Moxa Technical College. Our partnership enables us to provide comprehensive in-house training and first-line technical support, and our team of Industrial Internet of Things (IIoT) specialists are fully equipped to guide you through every step of the process. Whether you require assistance with installation, troubleshooting or anything else, our team is ready to assist you.
Technical Support from Impulse
Our commitment doesn't end with the initial setup—we provide lifelong technical support for the entire range of Moxa products at no extra charge. Count on us to ensure that your network operates at its peak performance throughout its entire lifespan.
The MDS-G4020-4XGS is a modular managed Ethernet switch offering a total of 20 ports, including 16 Gigabit interfaces and 4 embedded 10G SFP+ uplinks. Certified to IEC 61850-3 and IEEE 1613, it is engineered for substation automation, utilities, and demanding industrial networks that require high bandwidth and a flexible design.
Expansion slots support LM-7000H modules for copper or fibre connectivity, allowing operators to customise the switch for edge access or backbone aggregation. Dual power slots support hot-swappable LV (24/48 VDC) or HV (110/220 VAC/VDC) modules, allowing for resilient, redundant configurations.
The passive backplane design and tool-free, hot-swappable modules reduce downtime and simplify maintenance. A rugged die-cast chassis supports compact installation in space-restricted cabinets or field sites.
Resiliency features include PRP and HSR (IEC 62439-3), Turbo Ring/Chain, RSTP, and MSTP. Hardware-based IEEE 1588 PTP with IEC 61850-9-3 and IEEE C37.238 profiles ensures precise synchronisation for substation protection and control systems. MMS/IEC 61850-90-4 data modelling and an HTML5-based interface enable seamless SCADA integration and intuitive management.
With 16x Gigabit ports, 10G uplink capacity, and modular flexibility, the MDS-G4020-4XGS provides a resilient, scalable platform for high-performance industrial and substation Ethernet networks.
Delivery & Returns
We offer a range of delivery options to suit your needs.
UK Mainland
Northern Ireland & Highlands
Ireland
RMA
In order to process returned goods, Impulse Embedded Limited uses an internal RMA system. Before returning goods for any reason, please contact Impulse Embedded Limited (returns@impulse-embedded.co.uk) to request an RMA number. Please confirm the reason for the return of the goods, providing the Serial Number, Product Code, and Impulse Embedded Limited Invoice Number (if known).
When returning goods, please ensure they are suitably packed so as to avoid damage, are in the original packaging, along with all accessories, with the outer packaging marked with the RMA number. It is recommended that you use a signed delivery service, as goods lost in transit are not the responsibility of Impulse Embedded Limited.
Please do not write the RMA number on the goods or on the original packaging. Impulse Embedded Limited may refuse returned goods and return them if they arrive without an RMA number, or not in the original packaging.
Moxa 20 Port Layer 2 Gigabit Modular Managed Ethernet Switch
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Select the products of this series that you wish to request quantity or project pricing, or lead time information for:
MDS-G4020-4XGS-T
20 Port Layer 2 Gigabit Modular Managed Ethernet Switch – Extended Wide Temperature Operation
The requirement of this project was to design and build a number of custom rack-mount systems that were capable of running specialist military simulation software.