Moxa EDS-305-M-SC Industrial Media Converter Switch

The Moxa EDS-305-M-SC is a robust industrial media converter switch designed for reliable data transmission in demanding environments. This device offers key advantages such as extended operating temperature ranges, high EMI immunity, and redundant power inputs, ensuring continuous operation where network stability is paramount. Its core features include SC fiber optic ports for long-distance communication, a compact form factor for space-constrained installations, and a DIN-rail mountable design for easy integration. Essential technical parameters include a 10/100BaseT(X) Ethernet port, two 100BaseFX SC ports (multi-mode), a wide operating temperature range of -40 to 75°C, and dual 12/24/48 VDC power inputs. The Moxa EDS-305-M-SC effectively bridges the gap between copper Ethernet and fiber optic networks, enhancing network reach and resilience.

Product Specifications

| Feature              | Specification                                        |

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

| Ethernet Ports       | 1 x 10/100BaseT(X) RJ45                                |

| Fiber Ports          | 2 x 100BaseFX SC (Multi-mode)                        |

| Fiber Distance       | Up to 5 km                                           |

| Firewall Features    | None                                                 |

| Management           | Unmanaged                                            |

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

| Power Consumption    | Max. 2.5 W                                           |

| Operating Temperature| -40 to 75°C                                          |

| Mounting             | DIN-rail, Wall-mount (with optional kit)             |

| Dimensions           | 31.4 x 135 x 103 mm                                  |

| Warranty             | 5 years                                              |

Core Features & Market Positioning

The Moxa EDS-305-M-SC distinguishes itself in the industrial networking market through its ruggedized design and specific fiber optic connectivity options. Its unmanaged nature simplifies deployment, making it an ideal choice for applications where advanced network management is not required, but robust and reliable connectivity is essential. The inclusion of SC multi-mode fiber ports provides a cost-effective solution for extending Ethernet networks over moderate distances, typically up to 5 kilometers, while offering superior immunity to electromagnetic interference compared to copper cabling. This positions the EDS-305-M-SC as a workhorse for industrial automation, transportation, and utility sectors, where network uptime and data integrity are non-negotiable. Its competitive advantage lies in Moxa's reputation for reliability and adherence to industrial standards.

Key Application Scenarios

This industrial media converter switch is pivotal in scenarios demanding reliable network extensions and media conversion. It excels in connecting remote substations, surveillance cameras, or field devices back to a central control room over longer distances using its multi-mode SC fiber ports, bypassing the limitations of copper Ethernet. Common applications include factory automation, where it connects PLCs and sensors to the network, and intelligent transportation systems (ITS) for traffic management or railway communication networks, benefiting from fiber's immunity to electrical noise and lightning strikes. Furthermore, its wide operating temperature range makes it suitable for outdoor enclosures and harsh environmental conditions found in oil and gas or mining operations.

Practical System Integration Guidance

Integrating the Moxa EDS-305-M-SC into existing industrial networks is straightforward due to its plug-and-play, unmanaged design. Installation typically involves mounting the unit on a standard DIN-rail. Power is supplied via its redundant terminals, ensuring continuous operation even if one power source fails. For network connectivity, standard Ethernet patch cables connect to the RJ45 port, while appropriate multi-mode fiber optic patch cords (with SC connectors) are used for the fiber links. It's crucial to match the fiber cable type (e.g., 62.5/125 µm or 50/125 µm) with the transmitter and receiver specifications, although the EDS-305-M-SC is designed for compatibility with common multi-mode fiber. Ensure proper polarity and clean fiber connectors for optimal signal integrity.

Operation and Risk Mitigation

Operating the Moxa EDS-305-M-SC requires minimal intervention due to its unmanaged nature. The primary operational consideration is ensuring stable power supply within the specified voltage range (12/24/48 VDC) via its dual inputs. Risk mitigation focuses on protecting the device from environmental hazards beyond its specifications, such as excessive dust, moisture ingress (unless properly enclosed), or extreme temperatures outside its -40 to 75°C range. While the device boasts high EMI immunity, extreme electromagnetic fields could still pose a risk; therefore, proper grounding and shielded cabling are recommended where applicable. Regular inspection of fiber optic connections for cleanliness and physical integrity is a simple yet effective measure to prevent performance degradation or link failures.

Scalability & Long-Term Value

The Moxa EDS-305-M-SC offers long-term value through its robust build quality and straightforward integration capabilities, supporting future network expansions. While it is an unmanaged switch, its ability to bridge copper and multi-mode fiber networks seamlessly makes it a foundational component for growing industrial infrastructures. It can be easily incorporated into larger network architectures where managed switches handle core routing and security, with the EDS-305-M-SC providing reliable last-mile connectivity. Its compatibility with standard industrial networking protocols and its five-year warranty underscore its suitability for long-term deployments, reducing total cost of ownership and minimizing the need for frequent replacements, particularly in IIoT (Industrial Internet of Things) contexts requiring dependable sensor and device connectivity.

FAQs

Q1: What is the maximum distance the Moxa EDS-305-M-SC can transmit data over fiber?

The multi-mode SC fiber optic ports on the Moxa EDS-305-M-SC support data transmission up to 5 kilometers. This extended range is crucial for connecting devices across large industrial facilities or outdoor environments. It significantly surpasses the typical limitations of standard Ethernet copper cabling.

This extended reach is achieved by utilizing the properties of fiber optics, which are less susceptible to signal degradation over distance compared to copper. The specific type of multi-mode fiber and its core size will influence the optimal performance within this 5 km range.

The 5 km capability makes it ideal for applications such as connecting remote sensors, surveillance cameras, or network access points in substations or along pipelines where direct copper connections are impractical or impossible.

Q2: Can the Moxa EDS-305-M-SC be managed remotely?

No, the Moxa EDS-305-M-SC is an unmanaged industrial media converter switch. It does not support remote management features like web interfaces, SNMP, or CLI access. Its operation is based on plug-and-play functionality for immediate network connectivity.

As an unmanaged device, it simplifies installation and reduces the complexity of network configuration, making it suitable for environments where advanced network management is not a requirement. Configuration is minimal, focusing primarily on power and physical connections.

For applications requiring network monitoring, configuration, or advanced features like VLANs or QoS, a managed industrial switch from Moxa or another vendor would be necessary. The EDS-305-M-SC serves as a reliable endpoint or media conversion point.

Q3: What operating temperatures can the Moxa EDS-305-M-SC withstand?

The Moxa EDS-305-M-SC is designed to operate reliably in extreme conditions, with a wide operating temperature range of -40 to 75 degrees Celsius (-40 to 167 degrees Fahrenheit). This robust temperature tolerance is a key feature for industrial applications.

This broad temperature range ensures consistent performance whether the device is installed in a freezing outdoor enclosure or a hot manufacturing plant environment. It significantly reduces the risk of hardware failure due to thermal stress.

The device's industrial design, including its rugged casing and internal components, is specifically engineered to meet these demanding environmental specifications. This makes it a dependable choice for harsh settings where commercial-grade equipment would fail.

Q4: What type of fiber optic connector does the Moxa EDS-305-M-SC use?

The Moxa EDS-305-M-SC utilizes SC connectors for its fiber optic ports. These connectors are widely used in industrial and telecommunications applications due to their robustness and ease of use.

SC connectors are push-pull locking connectors that provide a secure connection, minimizing the risk of accidental disconnections. They are designed for easy mating and unmating cycles.

When using the EDS-305-M-SC, ensure that your fiber optic patch cables are equipped with SC connectors to establish a proper link between the switch and other fiber-optic devices. Cleanliness of the SC connector end-faces is vital for optimal signal transmission.

Q5: Does the Moxa EDS-305-M-SC support Power over Ethernet (PoE)?

No, the Moxa EDS-305-M-SC does not support Power over Ethernet (PoE) functionality. It is designed primarily for media conversion and basic Ethernet switching between copper and fiber optic interfaces.

PoE involves delivering electrical power along with data over the same Ethernet cable. The EDS-305-M-SC focuses on data transmission and does not have the internal circuitry to inject or receive power over its Ethernet ports.

For applications requiring PoE, you would need to consider a PoE-capable switch or a separate PoE injector, ensuring that the power requirements of the connected PoE devices are met by the power source.

Q6: How is the Moxa EDS-305-M-SC powered?

The Moxa EDS-305-M-SC is powered by dual redundant DC power inputs, supporting voltages of 12, 24, or 48 VDC. This redundant power design enhances network reliability by allowing the switch to continue operating if one power source fails.

Having two separate power inputs allows for connection to different power supplies or circuits, providing a failover mechanism. This is critical in industrial environments where uninterrupted network operation is essential.

The device features screw terminals for connecting the power supply cables, ensuring secure and reliable electrical connections suitable for industrial settings. It also has a low power consumption, typically around 2.5W.

Q7: What is the difference between multi-mode and single-mode fiber, and which does the EDS-305-M-SC use?

Multi-mode fiber (MMF) has a larger core diameter, allowing multiple light paths (modes) to travel simultaneously, which is suitable for shorter distances. Single-mode fiber (SMF) has a much smaller core, guiding light in a single path, enabling much longer transmission distances. The Moxa EDS-305-M-SC uses multi-mode fiber.

Multi-mode fiber is generally less expensive for both the cable and the transceivers compared to single-mode. It is typically used for links up to a few kilometers, making it ideal for within-campus or large building applications.

The EDS-305-M-SC's use of multi-mode fiber with SC connectors is optimized for distances up to 5 km, offering a cost-effective solution for extending industrial networks over moderate ranges where single-mode's extreme reach is not required.

Q8: How does the Moxa EDS-305-M-SC protect against electromagnetic interference (EMI)?

The primary way the Moxa EDS-305-M-SC mitigates EMI is through its use of fiber optic ports. Fiber optic cables transmit data using light pulses, making them inherently immune to electromagnetic interference.

While the copper Ethernet port is susceptible to EMI like any other copper-based network device, the fiber optic links provide a robust, noise-free data path. This isolation is critical in industrial settings with high levels of electrical noise.

The robust industrial design of the Moxa EDS-305-M-SC itself, including its metal casing and adherence to industrial standards, also contributes to its overall resilience against environmental electrical disturbances.

Q9: Can I connect the Moxa EDS-305-M-SC to a managed switch?

Yes, you can absolutely connect the Moxa EDS-305-M-SC to a managed switch. As an unmanaged switch, it acts as a simple plug-and-play device that extends your network connectivity.

When connected to a managed switch, the EDS-305-M-SC will function as a media converter and basic switch, allowing you to bridge copper Ethernet segments to fiber optic segments. The managed switch will then handle all network intelligence, routing, and monitoring.

This setup is very common in industrial networks where managed switches are used at aggregation points or in control rooms, and unmanaged devices like the EDS-305-M-SC are deployed at remote locations or at the edge of the network for reliable data access.

Q10: What is the warranty period for the Moxa EDS-305-M-SC?

The Moxa EDS-305-M-SC comes with a comprehensive 5-year warranty. This extended warranty period reflects Moxa's confidence in the product's durability and reliability for industrial applications.

A 5-year warranty provides significant long-term value and peace of mind for users deploying the device in critical infrastructure or remote locations where maintenance can be challenging. It minimizes potential downtime and replacement costs.

This warranty coverage is standard for many of Moxa's industrial networking products, highlighting their commitment to providing robust and long-lasting solutions for demanding environments. Always refer to Moxa's official warranty terms for specific details.