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Managed 8-Port Industrial Ethernet Switch – 5x 10/100 RJ-45 + 3x 100BaseFX SM-SC (up to 40 km) – Turbo Ring <20 ms, RSTP/STP – VLAN/QoS/IGMP – dual ±24/±48 VDC – IP30 DIN-rail – -10°C to +60°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 EDS-408A-3S-SC-48 is an entry-level managed 8-port industrial switch that mixes copper access with long-reach fibre uplinks. It provides five 10/100BaseT(X) RJ-45 ports for field devices and three 100BaseFX single-mode SC ports, enabling links up to 40 km for building-to-building or trackside backbones. Designed for resilient operation, it supports Turbo Ring and Turbo Chain redundancy with recovery under 20 ms (up to 250 switches), plus STP/RSTP for standards-based designs across mixed vendors.
Deterministic performance is delivered through IEEE 802.1Q VLAN and port-based VLAN, QoS (802.1p/ToS), IGMP snooping, bandwidth management, RMON, and port mirroring for diagnostics. Integration with control systems is straightforward using EtherNet/IP and Modbus TCP, and the switches can be discovered and managed with MXstudio. Configuration and monitoring are available via web GUI, CLI, Telnet/serial console, or Windows utility, and alarms can trigger via relay output and email.
The hardware platform features dual redundant power inputs, supporting ±24/±48 VDC (±19 to ±60 VDC operating) with reverse polarity and overcurrent protection. Housed in a compact IP30 metal enclosure, it supports DIN-rail or wall mounting and operates from -10 to +60 °C. Compliance covers EN 50121-4 railway EMC, NEMA TS2 traffic, ATEX/Class I Div 2 hazardous locations, and marine approvals, with shock, vibration and freefall testing to IEC standards.
With 8K MAC table, 256 IGMP groups, 1 Mbit packet buffer and 4 priority queues, the EDS-408A-3S-SC-48 offers a practical, secure and easy-to-deploy platform for utility substations, wayside cabinets, tunnel systems and campus-scale fibre backbones.
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 8 Port Managed Industrial 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:
EDS-408A-3S-SC-48-T
8 Port Managed Industrial Ethernet Switch – 5x Fast Ethernet Ports – 3x Fast Fibre Single-Mode SC Ports – 24V – 48V DC Power Inputs – Extended Wide Temperature Operation
EDS-408A-3S-SC-48
8 Port Managed Industrial Ethernet Switch – 5x Fast Ethernet Ports – 3x Fast Fibre Single-Mode SC Ports – 24V – 48V DC Power Inputs – Wide Temperature Operation
Spurious error messages, especially those from rolling-stock subsystems, can be difficult and time consuming to diagnose. Siemens Rail, in Manchester, wished to install a data logging system onto their rolling stock to transmit data in real-time back to their depot for efficient data analysis by their team.