Moxa EDS-205A-S-SC-T 5-Port Single-mode Turbo Ring Redundant Switch

The Moxa EDS-205A-S-SC-T 5-Port Single-mode Industrial Ethernet Switch is a robust, high-performance networking solution designed for demanding industrial environments. Engineered for reliability and speed, this unmanaged Ethernet switch boasts Turbo Ring redundancy for near-instantaneous network recovery, ensuring continuous operation in critical applications. Its single-mode fiber optic port provides extended communication distances, making it ideal for geographically dispersed industrial setups. With support for 10/100 Mbps speeds across its five ports, including the SC connector for fiber, the EDS-205A-S-SC-T offers the essential features required for reliable industrial network infrastructure.

Product Specifications

| Feature             | Specification                                      |

| :------------------ | :------------------------------------------------- |

| Ethernet Ports      | 4 x 10/100BaseT(X) RJ45                             |

| Fiber Ports         | 1 x 10/100BaseS(SC) Single-mode                    |

| Redundancy Protocol | Turbo Ring (Ring+, STP, RSTP)                      |

| Network Speed       | 10/100 Mbps                                        |

| Power Input         | 12/24/48 VDC (9.6 to 60 VDC)                       |

| Operating Temp.     | -40 to 75 °C                                       |

| Mounting            | DIN-rail, Wall-mount                               |

| Management          | Unmanaged                                          |

| Dimensions          | 50 x 135 x 105 mm                                  |

| MTBF                | 300,000+ hours                                     |

Core Features & Market Positioning

The Moxa EDS-205A-S-SC-T distinguishes itself with its industrial-grade construction and advanced redundancy capabilities. The inclusion of Turbo Ring technology, offering recovery times of less than 20 ms, is paramount for applications where downtime is unacceptable, such as SCADA systems, industrial automation, and process control. Its single-mode fiber port is a significant differentiator, enabling data transmission over many kilometers, far exceeding the capabilities of copper Ethernet. This makes it a superior choice for linking remote substations, pipelines, or large factory complexes where long-distance connectivity is a primary requirement. Compared to standard commercial switches, the EDS-205A-S-SC-T offers enhanced environmental resistance and superior network resilience, positioning it as a premium solution for mission-critical industrial networks.

Key Application Scenarios

This switch is exceptionally well-suited for scenarios demanding high availability and extended-range communication. Common applications include real-time monitoring and control in power generation and distribution, where reliable data flow from remote substations to central control rooms is vital. In the oil and gas sector, it facilitates secure and stable communication across sprawling well sites and processing facilities. The transportation industry benefits from its robustness in traffic management systems and railway signaling networks, where consistent data transmission ensures operational safety and efficiency. Furthermore, its industrial design makes it perfect for manufacturing environments subject to vibration, extreme temperatures, and electromagnetic interference, ensuring continuous operation of PLCs, HMIs, and other automation devices.

Practical System Integration Guidance

Integrating the Moxa EDS-205A-S-SC-T into an industrial network is straightforward due to its unmanaged nature, eliminating the need for complex configuration. For power, connect the appropriate voltage supply (9.6 to 60 VDC) to the designated power input terminals. The RJ45 ports are for standard Ethernet connections to devices like PLCs, cameras, or other network equipment. The single-mode SC fiber port should be connected to another fiber-enabled device or switch using appropriate single-mode fiber optic cabling. For Turbo Ring redundancy, connect the devices in a loop topology, ensuring that the switch is the only element that can complete the ring. This physical loop activates the redundancy protocol, automatically re-routing traffic if a link or device fails.

Operation and Risk Mitigation

Operating the EDS-205A-S-SC-T requires minimal intervention. Its unmanaged status simplifies deployment and maintenance, focusing on plug-and-play functionality. To mitigate operational risks, ensure the power supply is within the specified voltage range and properly protected against surges. Environmental considerations are crucial; while designed for harsh conditions, avoid prolonged exposure to corrosive agents or environments exceeding the operating temperature limits. In case of network issues, the LED indicators on the front panel provide visual status for power, network activity, and link integrity. If a network failure occurs, Turbo Ring will automatically restore connectivity within milliseconds. Regular inspection of fiber optic connections for cleanliness and physical integrity is recommended to prevent signal degradation.

Scalability & Long-Term Value

The Moxa EDS-205A-S-SC-T offers significant long-term value through its inherent reliability and compatibility. While an unmanaged switch, its adherence to industrial standards ensures seamless integration with a wide array of industrial devices and automation platforms. For scalability, additional EDS-205A switches can be easily added to expand the network, either by creating new ring segments or extending existing ones, maintaining redundancy. Its robust construction and high MTBF (Mean Time Between Failures) rating of over 300,000 hours translate to reduced maintenance costs and extended operational lifespan. Furthermore, its compatibility with various industrial protocols and its ability to support long-distance fiber links make it a future-proof component for evolving industrial automation and IIoT (Industrial Internet of Things) initiatives, providing a stable foundation for digital transformation.

Frequently Asked Questions

Q1: What is the primary advantage of the Moxa EDS-205A-S-SC-T?

The primary advantage is its Turbo Ring redundancy, ensuring network uptime.

It offers rapid recovery from network disruptions, vital for industrial processes.

The single-mode fiber port extends communication range significantly over long distances.

Q2: Can this switch be used in extremely cold or hot environments?

Yes, it features a wide operating temperature range of -40 to 75 °C.

This ensures reliable performance in harsh industrial climates.

Its industrial-grade design makes it resilient to environmental extremes.

Q3: How does the Turbo Ring redundancy work?

Turbo Ring creates a redundant network path that can reroute traffic instantly.

If a link or switch fails, traffic is automatically redirected, minimizing downtime.

Recovery time is typically under 20 milliseconds for seamless operation.

Q4: What is the maximum distance the single-mode fiber port can support?

Single-mode fiber allows for communication over many kilometers.

This is significantly longer than standard copper Ethernet connections.

It's ideal for connecting remote sites or large industrial areas.

Q5: Is this switch managed or unmanaged?

The EDS-205A-S-SC-T is an unmanaged industrial Ethernet switch.

This means it does not require complex configuration or software.

It operates on a plug-and-play basis for quick deployment.

Q6: What power input voltage does the switch support?

It supports a wide range of DC power inputs from 9.6 VDC to 60 VDC.

This flexibility allows it to be integrated into various power systems.

Ensure the connected power source is stable and within the specified range.

Q7: What are the typical industries that use this switch?

Key industries include power generation, oil and gas, and transportation.

It is also widely used in manufacturing automation and process control.

Any sector requiring high network reliability in harsh conditions benefits.

Q8: How do I connect devices to the Moxa EDS-205A-S-SC-T?

Use standard Ethernet cables for the RJ45 ports.

Connect single-mode SC fiber optic cables to the fiber port.

Ensure all connections are secure and the fiber is clean for optimal performance.

Q9: What is the MTBF rating for this switch?

The switch boasts an Mean Time Between Failures (MTBF) rating exceeding 300,000 hours.

This high MTBF indicates exceptional reliability and longevity.

It translates to reduced maintenance and operational costs over its lifecycle.

Q10: Can this switch be mounted on a DIN rail?

Yes, the EDS-205A-S-SC-T is designed for easy DIN-rail mounting.

It also supports wall-mount installations for versatile deployment options.

This ensures flexible integration into existing control panels and enclosures.