Moxa EDS-208A-M-ST Industrial Communication Fiber Optic Switch
The Moxa EDS-208A-M-ST is a robust industrial communication fiber optic switch engineered for demanding environments. Its core advantages lie in its unmanaged, plug-and-play functionality, enhanced network reliability through fiber optic connectivity, and support for wide operating temperatures. Key technical parameters include its eight Ethernet ports, with options for copper (10/100BaseT(X)) and fiber (100BaseFX) interfaces, ensuring versatile network expansion. The switch supports standard Ethernet protocols and is designed for DIN-rail mounting, facilitating straightforward integration into industrial control systems.
Moxa EDS-208A-M-ST: Product Specifications
| Feature | Specification |
| :---------------------- | :-------------------------------------------------------- |
| Model | EDS-208A-M-ST |
| Ethernet Ports | 8 x 10/100BaseT(X) (RJ45) |
| Fiber Optic Ports | 2 x 100BaseFX (ST connector) |
| Protocol | IEEE 802.3, IEEE 802.3u, IEEE 802.3x |
| Switching Capacity | 1.6 Gbps |
| MAC Address Table | 1K entries |
| Auto-negotiation | Yes |
| Auto MDI/MDI-X | Yes |
| Flow Control | IEEE 802.3x flow control, back-pressure |
| Power Input | 12/24/48 VDC (9.6 to 60 VDC) |
| Power Consumption | Max. 3.6 W @ 24 VDC |
| Operating Temperature | -40 to 75 °C (-40 to 167 °F) |
| Storage Temperature | -40 to 85 °C (-40 to 185 °F) |
| Operating Humidity | 5 to 95% RH (non-condensing) |
| Mounting | DIN-rail, wall-mount (with optional kit) |
| Vibration Resistance | IEC 60068-2-6 |
| Shock Resistance | IEC 60068-2-27 |
| MTBF | Typically > 500,000 hours |
| Dimensions (W x D x H) | 39.6 x 110 x 145 mm (1.56 x 4.33 x 5.71 in) |
| Weight | 660 g |
| Certifications | CE, FCC, UL 508, Class I Div 2/Zone 2 (select models) |
Core Features & Market Positioning
The Moxa EDS-208A-M-ST distinguishes itself in the competitive industrial networking landscape through its robust design and reliable fiber optic communication capabilities. As an unmanaged switch, it offers a plug-and-play solution, significantly reducing installation complexity and enabling rapid deployment in critical infrastructure. The inclusion of fiber optic ports, specifically with ST connectors, provides superior immunity to electromagnetic interference (EMI) and enables longer transmission distances compared to traditional copper Ethernet, making it ideal for harsh industrial environments where data integrity is paramount. This focus on reliability and ease of use positions the EDS-208A-M-ST as a dependable choice for augmenting or establishing resilient industrial networks.
Key Application Scenarios
This industrial communication fiber optic switch is exceptionally suited for applications demanding high network availability and resistance to environmental challenges. Common use cases include factory automation, where it connects PLCs, sensors, and human-machine interfaces (HMIs) across production lines, often in areas with high electrical noise. It's also vital in power and energy sectors for Supervisory Control and Data Acquisition (SCADA) systems, extending communication links in substations and remote monitoring sites. Transportation infrastructure, such as intelligent traffic systems and railway signaling, benefits from its durable construction and the extended reach of fiber optics, ensuring reliable data flow even under adverse conditions.
Practical System Integration Guidance
Integrating the Moxa EDS-208A-M-ST into an industrial network is designed for simplicity. For fiber optic connections, ensure the ST fiber optic cables are clean and correctly terminated. Connect the copper Ethernet ports to devices using standard Cat5e or Cat6 Ethernet cables. The switch supports Auto MDI/MDI-X, eliminating the need for crossover cables. Power is supplied via a wide-range DC input (9.6 to 60 VDC), accommodating various power sources common in industrial settings, typically requiring a 24 VDC supply. For DIN-rail mounting, simply slide the switch onto the rail until it clicks securely into place; wall-mounting kits are available separately. No complex configuration or software is required for basic operation, making it a true plug-and-play solution.
Operation and Risk Mitigation
Operating the Moxa EDS-208A-M-ST requires minimal intervention due to its unmanaged nature. Monitoring network status can be done via the front-panel LEDs, which indicate power, link status, and activity for each port. Key risk mitigation strategies involve ensuring proper power supply voltage within the specified range to prevent damage. Protection against electrical surges and grounding are crucial in industrial environments; ensure the switch is properly grounded. Fiber optic cable management is also important; avoid sharp bends that could degrade signal quality. While the EDS-208A-M-ST itself is highly reliable, network downtime can occur due to external factors. Troubleshooting typically involves checking power, verifying cable connections (both copper and fiber), and confirming link status LEDs. There are no specific error codes to monitor as it is unmanaged; fault indication is primarily through link status loss.
Scalability & Long-Term Value
The Moxa EDS-208A-M-ST provides a foundational element for scalable industrial networks. Its multiple copper and fiber ports allow for easy expansion of network segments and connection of new devices. By integrating fiber optic links, it future-proofs the network against increasing bandwidth demands and extends the communication backbone over greater distances, which is critical for distributed industrial operations. Its compatibility with standard Ethernet protocols ensures seamless integration with existing SCADA, DCS, and PLC systems, as well as newer Industrial IoT (IIoT) platforms. The robust construction and wide operating temperature range contribute to a long operational lifespan, minimizing the need for premature replacements and offering significant long-term value in maintaining network uptime and efficiency.
FAQs
What is the primary advantage of using fiber optic ports on the Moxa EDS-208A-M-ST?
Fiber optic ports offer superior immunity to electromagnetic interference (EMI) and radio frequency interference (RFI). This ensures stable and reliable data transmission in electrically noisy industrial environments.
Fiber optic connections also support significantly longer transmission distances compared to copper Ethernet cables. This is crucial for connecting devices across large facilities or in remote locations.
The inherent security of fiber optics, making them difficult to tap without detection, adds another layer of protection for critical industrial data networks.
How do I connect devices to the Moxa EDS-208A-M-ST using its fiber optic ports?
You will need appropriate 100BaseFX fiber optic transceivers or direct fiber connections using ST connectors. Ensure your fiber optic cables are clean and free from damage before insertion.
Connect one end of the fiber optic cable to the ST port on the switch and the other end to the corresponding fiber port on your remote device or another switch. Always match the transmit (TX) and receive (RX) ports correctly.
Verify the link status on the LEDs after connecting. Clean fiber optic connectors are essential for optimal signal strength and reliable connectivity.
Can the Moxa EDS-208A-M-ST be used in hazardous locations?
Some models of the Moxa EDS-208A-M-ST are certified for use in hazardous locations, such as Class I Division 2 or Zone 2. Always check the specific model number and its certifications.
These hazardous location certifications indicate that the switch has been designed and tested to operate safely in potentially explosive atmospheres. Proper installation according to these certifications is mandatory.
Ensure that the power supply and cabling used also meet the requirements for hazardous area operations to maintain the integrity of the certification.
What is the power input range for the Moxa EDS-208A-M-ST?
The Moxa EDS-208A-M-ST supports a wide DC input voltage range, typically from 9.6 VDC to 60 VDC. This flexibility allows it to be powered by various industrial power supplies.
This wide voltage range makes it adaptable to different site power standards and configurations, including common 12V, 24V, or 48V DC systems found in industrial automation.
Always ensure the connected power supply is stable and within the specified operational range to guarantee the switch's reliable performance and longevity.
Is the Moxa EDS-208A-M-ST managed or unmanaged?
The Moxa EDS-208A-M-ST is an unmanaged industrial Ethernet switch. This means it operates on a plug-and-play basis without the need for complex configuration software or IP addressing.
As an unmanaged switch, it automatically handles traffic forwarding based on MAC addresses, simplifying installation and maintenance in industrial settings where ease of use is paramount.
Its unmanaged nature makes it ideal for straightforward network expansion where advanced features like VLANs or QoS are not required.
What is the typical operating temperature range for this switch?
The Moxa EDS-208A-M-ST is designed for harsh industrial environments and typically operates within a wide temperature range of -40°C to 75°C (-40°F to 167°F).
This broad operating temperature capability ensures reliable performance even in extreme ambient conditions, from cold storage facilities to hot factory floors.
Operating the switch within this specified temperature range is crucial for maintaining its longevity and preventing hardware failures.
How does the Auto MDI/MDI-X feature simplify network connections?
Auto MDI/MDI-X automatically detects the required cable type (straight-through or crossover) for Ethernet connections. This eliminates the need for users to manually select or use specific cable types.
You can connect any port on the Moxa EDS-208A-M-ST to another network device using a standard Ethernet cable, whether it's a PC, server, or another switch. The switch intelligently adjusts the wiring internally.
This feature significantly simplifies network setup and troubleshooting, reducing potential connection errors and installation time for industrial networks.
What kind of fiber optic connector does the Moxa EDS-208A-M-ST use?
The Moxa EDS-208A-M-ST model specifically features ST connectors for its fiber optic ports. ST connectors are a widely used, bayonet-style connector known for their robust physical connection.
When purchasing fiber optic patch cords for this switch, ensure they are terminated with ST connectors on at least one end, matching the switch's ports.
Properly seating and twisting the ST connector in its bayonet mount ensures a secure connection and optimal signal transmission.
What is the switching capacity of the Moxa EDS-208A-M-ST?
The Moxa EDS-208A-M-ST has a switching capacity of 1.6 Gbps. This refers to the total data throughput the switch can handle across all its ports simultaneously.
This capacity is sufficient for many industrial automation tasks and ensures efficient data exchange between connected devices without becoming a network bottleneck.
A higher switching capacity generally indicates better performance for handling large volumes of network traffic, especially in busy industrial environments.
How is the Moxa EDS-208A-M-ST typically mounted in an industrial panel?
The Moxa EDS-208A-M-ST is designed for easy installation on a standard 35mm DIN-rail. This is the most common mounting method in industrial electrical cabinets.
To mount, simply align the switch with the DIN-rail and push it down until it locks securely in place. The sturdy clip ensures it remains attached even under vibration.
Optional wall-mount brackets are also available if a DIN-rail is not present or suitable for the mounting location.
