Moxa EDS-308-M-SC DIN Rail Fiber Optic Switch

The Moxa EDS-308-M-SC is a robust, unmanaged industrial Ethernet switch designed for harsh environments, featuring 8 Fast Ethernet ports with 6 x copper ports and 2 x multi-mode SC fiber optic ports. This industrial Ethernet switch is engineered for reliable operation in extreme temperatures ranging from -40 to 75°C, making it ideal for demanding industrial automation and networking applications. Its DIN-rail mountable design simplifies installation in control cabinets, and its IP30 protection rating ensures suitability for dusty industrial settings. With dual redundant power inputs (12/24/48 VDC), it offers enhanced operational continuity.

Product Specifications

| Feature             | Specification                                |

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

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

| Fiber Optic Ports   | 2 x 100BaseFX multi-mode SC ports            |

| Power Input         | 12/24/48 VDC, redundant inputs               |

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

| Mounting            | DIN-rail                                     |

| Enclosure           | IP30                                         |

| Dimensions          | 33 x 135 x 105 mm                            |

| MTBF                | 350,000+ hours                               |

Core Features & Market Positioning

The Moxa EDS-308-M-SC distinguishes itself with its dual fiber optic ports, offering extended network reach and immunity to electromagnetic interference (EMI) which is critical for industrial deployments. Its inclusion of multi-mode SC connectors provides a cost-effective fiber solution for distances up to 2 kilometers, balancing performance with budget considerations. Positioned as a reliable and resilient solution, this switch excels in environments where standard commercial switches would fail due to temperature extremes or electrical noise, providing uninterrupted connectivity for critical industrial processes.

Key Application Scenarios

This industrial Ethernet switch is perfectly suited for extending network connectivity in rugged environments. It is commonly deployed in manufacturing plants for connecting machine controllers, sensors, and cameras across various production lines, ensuring real-time data acquisition. Its fiber optic capabilities make it ideal for building backbone networks in substations, oil and gas facilities, and transportation systems where long distances and susceptibility to electrical interference are significant concerns. The robust design also supports applications in outdoor enclosures for traffic control systems and utility monitoring.

Practical System Integration Guidance

Integrating the Moxa EDS-308-M-SC into an industrial network is straightforward. The DIN-rail mounting allows for quick attachment within standard electrical enclosures. Connection to the network is achieved by plugging standard Ethernet cables into the RJ45 ports for copper connections and appropriate fiber optic patch cables into the SC ports for the fiber segments. Power is supplied via the terminal block, supporting dual redundant inputs for failover. No complex configuration is required as this is an unmanaged switch; simply connect power and network cables for immediate operation.

Operation and Risk Mitigation

The EDS-308-M-SC operates on a plug-and-play basis, minimizing the risk of configuration errors in critical industrial networks. Its fanless design further reduces the chance of mechanical failure. To mitigate operational risks, ensure the power supply voltage is within the specified range (12/24/48 VDC) and that connections are securely fastened to prevent vibration-induced disconnections. While this switch does not feature diagnostic LEDs for specific error codes, standard network monitoring tools can be used to identify connectivity issues.

Scalability & Long-Term Value

The inclusion of two multi-mode fiber ports on the Moxa EDS-308-M-SC provides a straightforward path for network expansion, allowing for the extension of the network reach to new areas or the connection of remote equipment. Its compatibility with standard Ethernet protocols ensures seamless integration with existing industrial control systems and supervisory control and data acquisition (SCADA) platforms. As industries move towards Industrial Internet of Things (IIoT) and Industry 4.0 initiatives, the robust and reliable connectivity offered by this switch forms a foundational element for future digital transformation efforts.

FAQs

What is the maximum distance for the fiber optic ports on the Moxa EDS-308-M-SC?

The multi-mode fiber optic ports on the Moxa EDS-308-M-SC support transmissions up to 2 kilometers. This range is suitable for connecting devices within a large factory floor or across adjacent buildings.

This distance is achieved using the 100BaseFX standard over multi-mode fiber optic cabling. It's crucial to use appropriate fiber optic patch cords for optimal performance and reliability.

For applications requiring longer distances, Moxa offers other industrial switches with single-mode fiber options.

How do I power the Moxa EDS-308-M-SC switch?

The Moxa EDS-308-M-SC features dual redundant power inputs, accepting 12/24/48 VDC. This allows for connection to two separate power sources for enhanced operational continuity.

Power is supplied via a removable terminal block connector on the switch. Ensure correct polarity is observed during wiring to prevent damage.

Connecting both power inputs provides automatic failover if one power source fails, minimizing network downtime.

What type of fiber optic connectors does the Moxa EDS-308-M-SC use?

The Moxa EDS-308-M-SC utilizes SC connectors for its two multi-mode fiber optic ports. SC connectors are a common and reliable choice for industrial fiber optic applications.

These push-pull connectors ensure a secure connection and are easy to install and disconnect. They are designed to be compatible with standard SC-terminated fiber optic cables.

When purchasing fiber optic cables, ensure they are terminated with SC connectors and are suitable for multi-mode transmission.

Is the Moxa EDS-308-M-SC suitable for hazardous locations?

The Moxa EDS-308-M-SC is designed for industrial environments and has an IP30 protection rating, indicating it is protected against solid objects larger than 3.5mm. It is not intrinsically safe.

While it operates within a wide temperature range (-40 to 75°C) and resists vibration, it does not carry certifications for use in potentially explosive atmospheres (e.g., ATEX or Class I Division 2).

For hazardous locations, alternative Moxa industrial Ethernet switches with appropriate safety certifications should be considered.

What are the advantages of using fiber optic ports on an industrial switch like the EDS-308-M-SC?

Fiber optic ports provide immunity to electromagnetic interference (EMI) and radio frequency interference (RFI), which are common in industrial settings. This ensures reliable data transmission where copper cabling might fail.

Fiber optics also allow for much longer transmission distances compared to copper Ethernet, extending network reach significantly. This is crucial for large facilities or remote equipment.

Additionally, fiber optic cables are non-conductive, offering electrical isolation that enhances safety and prevents ground loop issues in complex industrial power systems.

Does the Moxa EDS-308-M-SC require configuration or setup?

No, the Moxa EDS-308-M-SC is an unmanaged industrial Ethernet switch. It operates on a plug-and-play basis, meaning no complex configuration or software setup is necessary.

You simply connect power and network cables to the appropriate ports, and the switch begins forwarding traffic automatically. This simplifies deployment and reduces the risk of misconfiguration.

Its unmanaged nature makes it an ideal choice for basic network extensions where advanced features like VLANs or QoS are not required.

What is the meaning of the "-M-SC" in the product name Moxa EDS-308-M-SC?

The "-M-" typically denotes "Multi-mode" fiber, indicating the type of fiber optic transmission supported by the switch's fiber ports. The "-SC" signifies the connector type used for these fiber optic ports, which is the SC (Subscriber Connector) type.

Therefore, EDS-308-M-SC means it has 8 Ethernet ports, and its two fiber ports are Multi-mode with SC connectors. This helps in identifying its exact specifications for cabling and distance requirements.

Understanding these designations is key to selecting the correct fiber optic cables and ensuring compatibility within your network infrastructure.

What kind of industrial applications is the Moxa EDS-308-M-SC best suited for?

This switch is ideal for applications requiring robust connectivity in harsh industrial environments, such as manufacturing automation, SCADA systems, and process control. Its wide operating temperature range and rugged design make it suitable for outdoor cabinets or machine-level connectivity.

The dual fiber ports are advantageous for extending networks in areas prone to electrical noise or where longer cable runs are necessary, like in power substations, transportation infrastructure, or mining operations.

Its plug-and-play simplicity also makes it a good choice for quick network expansions or connecting distributed sensors and devices without requiring specialized network IT personnel.

What is the MTBF (Mean Time Between Failures) for the Moxa EDS-308-M-SC?

The Moxa EDS-308-M-SC boasts a high Mean Time Between Failures (MTBF) rating, often exceeding 350,000 hours. This metric indicates the expected reliability and longevity of the device in continuous operation.

A high MTBF is crucial for industrial applications where equipment downtime can lead to significant production losses or safety hazards. It signifies the product's robust design and suitability for mission-critical networks.

This extended operational life and reliability contribute to a lower total cost of ownership over the lifespan of the industrial infrastructure.

Can the Moxa EDS-308-M-SC be used with single-mode fiber?

No, the Moxa EDS-308-M-SC is specifically designed for multi-mode fiber optic connections. The "-M-" in its designation clearly indicates multi-mode compatibility.

Using single-mode fiber optic cables with this switch will not work and could potentially damage the transceivers. Multi-mode fiber is suitable for shorter to medium distances, typically up to 2 kilometers for this switch.

If your application requires longer-distance fiber optic communication, you would need to select a Moxa industrial Ethernet switch model that specifically supports single-mode fiber optics.