Factory Automation & Process Control Solution – MOXA EDS-308-M-SC | EDS-300 Series
Where This Product Is Used
The MOXA EDS-308-M-SC is purpose-built for demanding industrial environments where network reliability directly impacts production uptime. Typical deployment scenarios include:
- Factory Automation: Connecting PLCs, HMIs, and I/O modules on the plant floor where vibration, heat, and EMI are constant challenges.
- DCS & Process Control: Integrating distributed control system nodes across long cable runs using fiber backbone links.
- Power Utilities & Substations: Providing fault-tolerant Ethernet connectivity in high-voltage environments requiring IEC 61850 network infrastructure.
- Oil & Gas Facilities: Linking SCADA RTUs and field instruments in hazardous-area control rooms.
- Railway & Transportation: Deploying in trackside cabinets and wayside control panels requiring wide-temperature operation.
- Water Treatment Plants: Networking remote pump stations and sensor arrays over fiber to central SCADA systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Model | EDS-308-M-SC |
| Series | EDS-300 |
| Manufacturer | MOXA |
| Switch Type | Unmanaged Industrial Ethernet Switch |
| Total Ports | 8 |
| Fast Ethernet Ports (RJ45) | 7 × 10/100BaseT(X) |
| Fiber Port | 1 × 100BaseFX, Multi-Mode, SC connector |
| Fiber Wavelength | 1300 nm |
| Fiber Max Distance | 5 km (multi-mode) |
| Relay Output Alarm | Yes — 1 relay output for power failure / port link alarm |
| Power Input | 12–48 VDC (redundant dual inputs) |
| Operating Temperature | -10 to 60°C (standard); -40 to 75°C (wide-temp variant) |
| Storage Temperature | -40 to 85°C |
| Humidity | 5–95% RH (non-condensing) |
| Protection | IP30 metal housing |
| Mounting | DIN-Rail / Wall-mount |
| Weight | 1570 g |
| Certifications | CE, FCC, UL 508, cUL |
| MTBF | >500,000 hours |
Why Engineers Specify This Model
- Relay Output Alarm: The built-in relay contact output immediately alerts operators or triggers PLC inputs upon power failure or link-down events — eliminating silent network failures that cause costly production stops.
- Multi-Mode SC Fiber Port: Enables noise-immune, long-distance fiber backbone connections up to 5 km, bypassing ground-loop and EMI issues common in heavy industrial environments.
- Redundant Dual Power Inputs: Supports 12–48 VDC dual-feed for power redundancy without additional hardware, meeting IEC 61158 fieldbus reliability requirements.
- DIN-Rail Form Factor: Snaps directly into standard control cabinet rails alongside PLCs and terminal blocks — no custom enclosure required.
- Zero Configuration: Plug-and-play unmanaged design reduces commissioning time and eliminates misconfiguration risk in time-critical installations.
- Wide Operating Temperature: Operates reliably from -10°C to 60°C standard, with wide-temp variants available for outdoor or extreme-environment cabinets.
Complete System Bill of Materials
For a complete fiber-linked industrial Ethernet segment, engineers typically pair the EDS-308-M-SC with:
- MOXA EDS-308-M-SC — This unit (fiber uplink node)
- MOXA EDS-308 / EDS-316 — Additional copper-port switches for device-level connections
- MOXA NPort 5000 Series — Serial-to-Ethernet device servers for legacy RS-232/485 instruments
- Multi-Mode SC Fiber Patch Cable (1300 nm) — OM1/OM2 62.5/125 µm or 50/125 µm
- 24 VDC DIN-Rail Power Supply — e.g., MEAN WELL DR-75-24 or equivalent
- DIN-Rail Terminal Blocks — For relay output wiring to PLC digital input
Compliance & Industry Standards
- CE Mark (EMC Directive 2014/30/EU)
- FCC Part 15 Class A
- UL 508 / cUL — Industrial Control Equipment
- IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX / 100BaseFX)
- IEEE 802.3x Flow Control
- IEC 61000-4 Series (ESD, EFT, Surge, Conducted Immunity)
- ROHS Compliant
Quality Assurance & Sourcing
All MOXA products supplied by Konmask.com are sourced through verified industrial distribution channels. Each unit undergoes incoming inspection including:
- Visual inspection and label verification against MOXA factory markings
- Power-on functional test (port link, relay output actuation)
- Firmware version check against MOXA official release notes
- Anti-static packaging and humidity-indicator card for long-term storage
We provide full traceability documentation upon request for MRO procurement and plant maintenance records.
How to Source This Part
- In-Stock Orders: Add to cart and complete checkout — ships within 1–3 business days from our warehouse.
- Bulk / Project Quotes: Contact [email protected] for volume pricing and lead-time confirmation.
- Urgent Requirements: Call or WhatsApp +0086 19859288691 for same-day availability check.
- OEM / System Integrator Accounts: Inquire about dedicated account pricing and NET payment terms.
Application-Specific FAQ
Q: Can the EDS-308-M-SC relay output connect directly to a PLC digital input?
A: Yes. The relay output is a dry contact (normally closed / normally open selectable) rated for 1A @ 24 VDC, compatible with standard PLC DI modules.
Q: What fiber cable type is required for the SC port?
A: Multi-mode 62.5/125 µm (OM1) or 50/125 µm (OM2) SC-terminated patch cable at 1300 nm wavelength. Maximum link distance is 5 km.
Q: Is this switch suitable for use in a Class I Div 2 hazardous area?
A: The standard EDS-308-M-SC is not ATEX/IECEx certified. For hazardous-area installations, consult MOXA’s EDS-400A or use an appropriate purged enclosure.
Q: Can I use this switch in a ring topology for redundancy?
A: No — the EDS-308-M-SC is an unmanaged switch and does not support ring/RSTP redundancy protocols. For ring topologies, specify the MOXA EDS-408A or EDS-510A managed series.
Q: What is the power consumption?
A: Typical power consumption is approximately 3.2W under full load, making it suitable for low-capacity DIN-rail power supplies in compact control panels.
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