Moxa EDS-208A-SS-SC 8-Port Industrial Grade Single-mode SC Switch

The Moxa EDS-208A-SS-SC is an 8-port industrial Ethernet switch engineered for robust performance in demanding environments. This single-mode SC fiber optic switch boasts critical advantages such as extended communication distances up to 40 km, high operating temperature ranges from -40 to 75°C, and dual redundant power inputs for enhanced reliability. Its key technical parameters include a 10/100 Mbps Ethernet speed, 1.5 KV isolation protection for Ethernet ports, and a DIN-rail mounting design for straightforward industrial panel integration. The EDS-208A-SS-SC is built to withstand shock, vibration, and extreme temperatures, making it an ideal solution for critical infrastructure, transportation, and automation applications where network uptime is paramount.

Product Specifications

| Feature                  | Specification                                    |

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

| Ethernet Ports           | 6 x 10/100BaseT(X) RJ45                          |

| Fiber Ports              | 2 x 100BaseFX Single-mode SC                     |

| Fiber Wavelength         | 1310 nm                                          |

| Fiber Distance           | Up to 40 km                                      |

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

| Power Consumption        | 4.92 W @ 24 VDC                                  |

| Operating Temperature    | -40 to 75°C                                      |

| Storage Temperature      | -40 to 85°C                                      |

| Ambient Humidity         | 5 to 95% RH (non-condensing)                     |

| Isolation Protection     | 1.5 KV for Ethernet ports                        |

| Mounting                 | DIN-rail, Panel, or Wall mounting                |

| MTBF                     | 300,000+ hours                                   |

| Dimensions               | 50 x 135 x 104 mm (W x H x D)                    |

| Weight                   | 710 g                                            |

| Certifications           | CE, FCC, UL 508, CSA C22.2 No. 14, ATEX Zone 2 |

Core Features & Market Positioning

The Moxa EDS-208A-SS-SC stands out in the industrial networking market due to its inherent ruggedness and extended single-mode fiber optic capabilities. Unlike standard commercial switches, it is purpose-built to endure harsh industrial conditions, including significant temperature fluctuations and intense vibration, ensuring continuous operation where others fail. The inclusion of two 100BaseFX single-mode SC ports provides a critical advantage for long-distance communication, enabling reliable data transfer over distances up to 40 kilometers—a necessity for sprawling industrial sites, pipeline monitoring, and remote infrastructure. Furthermore, its 1.5 KV Ethernet isolation protection offers a vital layer of defense against transient voltage surges and ground loops, common issues in electrically noisy industrial environments. This combination of environmental resilience, long-reach fiber connectivity, and enhanced protection solidifies its position as a premium choice for mission-critical applications demanding unwavering network stability.

Key Application Scenarios

This industrial switch is exceptionally well-suited for applications requiring reliable, long-distance Ethernet communication in challenging environments. In the oil and gas sector, it facilitates robust data collection from remote wellheads, pipelines, and processing facilities, transmitting critical operational data over extensive distances to central control rooms. For transportation systems, the Moxa EDS-208A-SS-SC is deployed in intelligent transportation systems (ITS) for traffic management, monitoring highway sensors, and connecting CCTV cameras along railway lines, ensuring uninterrupted communication despite constant movement and environmental exposure. In power utilities, it is crucial for substation automation and smart grid deployments, enabling the secure and stable transmission of control and monitoring data from geographically dispersed substations to the central grid management center, even across tens of kilometers. Its ability to maintain network integrity in these demanding scenarios makes it indispensable for modern industrial automation and critical infrastructure projects.

Practical System Integration Guidance

Integrating the Moxa EDS-208A-SS-SC into an industrial network is streamlined due to its user-friendly design. For power supply, connect the dual DC power inputs using appropriate gauge wiring to terminals labeled "+V1/-V1" and "+V2/-V2," ensuring polarity is observed. The inclusion of two independent power inputs allows for seamless failover; if one power source fails, the other automatically takes over, maintaining network operation. For network connectivity, standard Ethernet cables (Cat5e or better) are used for the RJ45 ports, while appropriate single-mode SC fiber optic patch cords are required for the fiber ports, ensuring the correct wavelength (1310nm) and connector type are utilized. The switch supports plug-and-play functionality for basic operation, eliminating the need for complex software configuration upon initial deployment. For advanced users, management features can be accessed via console port or web interface, allowing for VLAN configuration, QoS settings, and network diagnostics. Its DIN-rail mounting bracket, pre-attached, allows for quick installation onto standard industrial mounting rails found in control cabinets.

Operation and Risk Mitigation

Ensuring the long-term operational integrity and mitigating potential risks with the Moxa EDS-208A-SS-SC involves adhering to best practices for industrial environments. Always ensure the device is installed within its specified operating temperature range of -40 to 75°C and humidity levels (5-95% non-condensing) to prevent premature component failure. The dual redundant power inputs are a critical feature for risk mitigation; connect both inputs to separate, reliable DC power sources to guarantee uninterrupted operation in the event of a single power supply failure. Verify that the Ethernet ports are properly grounded, either through the DIN-rail mounting or dedicated grounding connections, to dissipate static electricity and protect against voltage surges, especially when connecting to equipment without inherent isolation. Regular inspection of fiber optic connectors for cleanliness and integrity is recommended to maintain optimal signal quality over the extended distances. While the switch offers 1.5 KV isolation, it is advisable to use additional surge protection devices on power and network lines in environments with particularly severe electrical disturbances.

Scalability & Long-Term Value

The Moxa EDS-208A-SS-SC offers significant scalability and long-term value, particularly for growing industrial networks. Its eight ports provide ample connectivity for current needs, and the inclusion of two versatile fiber optic ports ensures a future-proof foundation for expanding network reach. As industrial operations expand or become more geographically dispersed, the 40 km single-mode fiber capability allows for seamless extension of the network without the need to replace the core switching infrastructure. Compatibility is a key aspect of its long-term value; it adheres to standard Ethernet protocols, ensuring interoperability with a wide range of industrial devices, PLCs, and SCADA systems from various manufacturers. Furthermore, its robust construction and high MTBF (Mean Time Between Failures) rating of over 300,000 hours translate into reduced maintenance costs and extended operational lifespan, minimizing the total cost of ownership. The switch's ability to integrate into IIoT architectures and support advanced network management protocols also positions it as a valuable component for future digital transformation initiatives within industrial settings.

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Frequently Asked Questions (FAQs)

What is the maximum communication distance for the Moxa EDS-208A-SS-SC?

The Moxa EDS-208A-SS-SC supports single-mode fiber optic communication up to 40 kilometers. This extended range is ideal for large industrial facilities and geographically dispersed sites.

This capability ensures reliable data transmission across significant distances without signal degradation. It is crucial for applications like pipeline monitoring or smart grid deployments spanning vast areas.

The switch utilizes 1310nm wavelength on its SC fiber ports for this long-haul performance. This specific wavelength is optimized for single-mode fiber transmission over extended lengths.

Can the Moxa EDS-208A-SS-SC operate in extreme temperatures?

Yes, the Moxa EDS-208A-SS-SC is designed for harsh industrial environments, operating reliably between -40°C and 75°C. This wide temperature range is critical for outdoor installations or unconditioned spaces.

Its robust construction and component selection allow it to withstand significant thermal stress without performance degradation. This ensures network uptime in demanding climates and industrial processes.

The switch's ability to operate across such a broad temperature spectrum minimizes the risk of equipment failure and reduces the need for climate-controlled enclosures. This directly translates to lower operational costs.

What type of connectors does the Moxa EDS-208A-SS-SC use for fiber optics?

The Moxa EDS-208A-SS-SC features two 100BaseFX single-mode fiber optic ports with SC connectors. SC connectors are widely adopted for their durability and ease of use in industrial settings.

These connectors provide a secure and reliable physical link for the single-mode fiber optic cables. They are designed for repeated mating cycles without significant signal loss.

When connecting the fiber ports, ensure you use appropriate single-mode SC patch cords. Compatibility in wavelength (1310nm) and connector type is essential for optimal performance.

Does the Moxa EDS-208A-SS-SC support redundant power inputs?

Yes, the Moxa EDS-208A-SS-SC is equipped with dual redundant power inputs for enhanced network reliability. It supports DC power input within a wide range of 9.6 to 60 VDC.

Connecting two separate power sources to these inputs ensures continuous operation if one power supply fails. This failover capability is vital for mission-critical industrial applications.

This dual power design significantly increases the switch's uptime and reduces the risk of network disruption due to power-related issues. It's a key feature for robust industrial networking.

What is the Ethernet port speed and protection on the Moxa EDS-208A-SS-SC?

The Moxa EDS-208A-SS-SC features eight 10/100 Mbps Ethernet ports, suitable for standard industrial networking speeds. These RJ45 ports support auto-negotiation for easy integration.

Additionally, each Ethernet port is equipped with 1.5 KV isolation protection. This feature safeguards the switch and connected devices from voltage transients and ground loops.

This built-in protection is crucial in electrically noisy industrial environments, preventing damage and ensuring stable network communication. It adds a significant layer of resilience to the device.

How is the Moxa EDS-208A-SS-SC typically mounted in an industrial panel?

The Moxa EDS-208A-SS-SC is designed for flexible industrial mounting, commonly using the integrated DIN-rail mounting bracket. This allows for quick and secure installation on standard industrial mounting rails.

It also supports panel and wall mounting options, providing versatility for different cabinet and enclosure configurations. This adaptability simplifies deployment in various industrial settings.

Proper mounting ensures physical security and facilitates easy access for maintenance, while also aiding in heat dissipation and cable management within industrial control cabinets.

What are the benefits of using single-mode fiber with this switch?

Single-mode fiber optics, used by the EDS-208A-SS-SC, allow for significantly longer transmission distances compared to multi-mode fiber. This makes it ideal for connecting geographically dispersed devices.

It offers higher bandwidth and lower signal attenuation over these long distances, ensuring data integrity for critical applications. This is crucial for remote monitoring and control systems.

The single-mode implementation with SC connectors provides a cost-effective and reliable solution for extending industrial networks over kilometers, up to 40 km in this case.

Is the Moxa EDS-208A-SS-SC suitable for hazardous locations like ATEX Zone 2?

Yes, the Moxa EDS-208A-SS-SC has achieved ATEX Zone 2 certification. This means it is approved for use in potentially explosive atmospheres where such zones are present.

This certification ensures the switch meets stringent safety standards for operation in hazardous industrial environments, such as oil and gas refineries or chemical plants.

Its compliance with ATEX regulations adds significant value for industries requiring intrinsically safe or explosion-proof equipment, offering peace of mind and regulatory adherence.

What is the power consumption of the Moxa EDS-208A-SS-SC?

The Moxa EDS-208A-SS-SC has a typical power consumption of 4.92 Watts when operating at 24 VDC. This relatively low power draw is efficient for industrial power budgets.

This energy efficiency is beneficial for large deployments or in applications where power is a critical consideration, such as remote or battery-powered sites.

Its power consumption remains consistent across its wide operating voltage range, making it a reliable and efficient choice for continuous industrial operation.

What is the Mean Time Between Failures (MTBF) for this industrial switch?

The Moxa EDS-208A-SS-SC boasts an impressive Mean Time Between Failures (MTBF) rating exceeding 300,000 hours. This metric indicates exceptional reliability and longevity.

A high MTBF signifies that the switch is designed and built to withstand continuous operation under demanding industrial conditions for extended periods. This reduces the likelihood of unexpected downtime.

This long-term reliability translates into lower maintenance costs and increased operational uptime, providing a significant return on investment for industrial network infrastructure.