Moxa EDS-309-3M-SC 9-Port Compact Managed Industrial Switch

The Moxa EDS-309-3M-SC is a robust, nine-port managed industrial Ethernet switch engineered for demanding operational environments. It boasts a compact form factor, essential for space-constrained industrial cabinets, and features a 3-fiber SC multi-mode port, ideal for extending network reach in challenging conditions where electromagnetic interference is a concern. With its high-performance switching fabric, extensive management capabilities, and ruggedized design, the EDS-309-3M-SC ensures reliable data transmission and network uptime in critical industrial applications. Its core technical parameters include a 0 to 60°C operating temperature range, dual redundant power inputs (12/24/48 VDC), and a Mean Time Between Failures (MTBF) of over 200,000 hours, underscoring its suitability for continuous, high-availability operations.

Product Specifications

| Feature | Specification |

|---|---|

| Model | Moxa EDS-309-3M-SC |

| Port Configuration | 6 x 10/100BaseT(X) RJ45, 1 x 10/100BaseT(X) RJ45, 2 x 100BaseFX SC multi-mode |

| Fiber Connector Type | SC |

| Fiber Mode | Multi-mode |

| Ethernet Standards | IEEE 802.3, IEEE 802.3u, IEEE 802.3x |

| Switching Capacity | 1.8 Gbps |

| Packet Forwarding Rate | 1.34 Mpps |

| MAC Address Table Size | 1000 |

| Operating Temperature | 0 to 60°C (32 to 140°F) |

| Storage Temperature | -40 to 85°C (-40 to 185°F) |

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

| Power Input | Dual Redundant 12/24/48 VDC |

| Power Consumption | Max. 6.5W |

| MTBF | > 200,000 hours |

| Enclosure | IP30 metal housing |

| Mounting | DIN-rail mounting |

| Dimensions (W x D x H) | 54 x 104 x 135 mm (2.13 x 4.09 x 5.31 in) |

| Weight | 650 g (1.43 lb) |

Core Features & Market Positioning

The Moxa EDS-309-3M-SC distinguishes itself through its combination of robust industrial design and advanced managed functionalities. Its inclusion of two multi-mode SC fiber ports provides a cost-effective solution for network segmentation and extending Ethernet connectivity over distances up to 5 kilometers, offering significant advantages in environments prone to electrical noise or requiring greater physical separation between network nodes. This makes it a compelling choice for applications in manufacturing automation, intelligent transportation systems, and utility infrastructure where reliability and network resilience are paramount. The switch's support for comprehensive management features, including SNMP, Web, Telnet, and console management, allows for detailed network monitoring, configuration, and troubleshooting, positioning it as a high-value solution for IT professionals managing complex industrial networks. Its compact footprint and DIN-rail mounting further enhance its appeal for integration into space-constrained control cabinets.

Key Application Scenarios

This industrial switch is exceptionally well-suited for critical infrastructure and automation deployments. In manufacturing facilities, it facilitates robust communication between PLCs, HMI panels, and supervisory control systems, even in noisy electrical environments, thanks to its fiber optic capabilities. For intelligent transportation systems (ITS), the EDS-309-3M-SC can connect traffic controllers, surveillance cameras, and variable message signs, providing reliable data flow for real-time traffic management. Its dual power inputs and wide operating temperature range make it ideal for remote or outdoor installations, such as in utility substations or pipeline monitoring systems, where network uptime is non-negotiable. The multi-mode SC fiber ports are particularly advantageous for connecting multiple devices within a facility or campus, bridging larger distances between network segments than traditional copper cabling allows.

Practical System Integration Guidance

Integrating the Moxa EDS-309-3M-SC into an industrial network is streamlined by its standard DIN-rail mounting and straightforward web-based management interface. Installation involves securing the switch to a DIN rail and connecting the primary and redundant power supplies. Network cabling is then connected to the RJ45 ports for copper connections and the SC fiber ports for longer-distance or noise-immune links. For initial setup and advanced configuration, users can access the switch's management interface via its default IP address or through console connection. Key configurations often include setting up network redundancy protocols like Turbo Ring or Turbo Chain (if supported by other Moxa devices in the network), defining VLANs for network segmentation, and configuring Quality of Service (QoS) to prioritize critical traffic, ensuring smooth operation of automation processes.

Operation and Risk Mitigation

The Moxa EDS-309-3M-SC is built for operational resilience. Its fanless design and robust metal enclosure (IP30 rated) protect against dust and vibration, common in industrial settings, contributing to its high MTBF rating and reducing the risk of mechanical failure. To mitigate operational risks, it is crucial to ensure proper power supply conditions, utilizing the dual redundant inputs to prevent downtime during a single power source failure. Regular firmware updates, accessible via the management interface, are recommended to patch potential security vulnerabilities and improve performance. In terms of troubleshooting, common issues like link failures can be diagnosed by checking port status LEDs, using the management interface to ping devices, or examining the system log for error messages related to power, temperature, or network connectivity.

Scalability & Long-Term Value

The Moxa EDS-309-3M-SC offers significant scalability and long-term value, particularly when integrated into a broader Moxa industrial networking ecosystem. Its managed capabilities allow for sophisticated network segmentation using VLANs, enabling the addition of new devices and subnetworks without compromising existing operations. Compatibility with Moxa's proprietary Turbo Ring and Turbo Chain redundancy protocols ensures seamless integration with other Moxa switches, creating highly available and fault-tolerant network topologies. As industries move towards Industrial Internet of Things (IIoT) and Industry 4.0 initiatives, the EDS-309-3M-SC provides a reliable foundation for transmitting data from edge devices to higher-level analytics platforms. Its rugged construction and extensive feature set ensure it remains a viable component in evolving industrial control systems for many years.

Frequently Asked Questions (FAQs)

What is the maximum distance the SC fiber ports can support on the Moxa EDS-309-3M-SC?

The SC multi-mode fiber ports on the Moxa EDS-309-3M-SC typically support distances up to 5 kilometers. This allows for reliable network extension in industrial facilities and campus environments where copper cabling is insufficient.

This distance capability is crucial for connecting network segments that are physically separated, offering a robust alternative to copper in environments with potential electromagnetic interference.

When utilizing multi-mode fiber, factors such as cable quality and connector integrity play a role in achieving the maximum specified distance.

How is the Moxa EDS-309-3M-SC managed and configured?

Management is achieved through various interfaces including Web, Telnet, console, and SNMP. This multi-faceted approach allows for flexible network administration suitable for different IT skill sets and network architectures.

Users can access the intuitive web interface for straightforward configuration of features like port settings, VLANs, and QoS, making it accessible even for less experienced personnel.

For more advanced network management and integration into existing monitoring systems, SNMP support is essential, providing standardized protocols for remote control and data retrieval.

What are the benefits of using multi-mode fiber with the Moxa EDS-309-3M-SC in an industrial setting?

Multi-mode fiber offers immunity to electromagnetic interference (EMI), making it ideal for noisy industrial environments where copper connections might experience signal degradation or failure.

It allows for longer cable runs compared to standard Ethernet copper cables, facilitating network expansion across larger factory floors or between buildings within a campus.

The SC connector is a widely adopted standard, ensuring ease of compatibility and connection with other fiber optic equipment, simplifying installation and maintenance processes.