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MOXA EDS-408A-SS-SC-CNE (Order No.: 03323800) is an entry-level 8-port Layer 2 managed industrial Ethernet switch. It is equipped with 6 × 10/100BaseT(X) RJ45 ports + 2 × 100BaseFX single-mode SC fiber ports. It supports Turbo Ring/Chain (fault recovery time < 20 ms) and complies with IEC 62443 industrial cybersecurity standards. Featuring IP30 protection and an operating temperature range of -10°C to 60°C, it is widely applied in factory automation, intelligent transportation, energy, rail transit and other industrial sectors.
- Model Code Explanation
| Code Segment | Description |
| EDS | EtherDevice™ series industrial Ethernet switches, MOXA entry-level managed product line |
| 408A | Basic 8-port Layer 2 managed model. The 400A series is entry-level, differentiated from the 500A/600A series |
| SS | Fiber port type: Single-mode fiber, maximum transmission distance up to 20 km (9/125μm) |
| SC | Fiber connector type: SC (Subscriber Connector), square push-pull design for quick connection |
| CNE | Regional code for China, compliant with Chinese industrial standards and certification requirements |
| No suffix | Standard temperature version (-10°C ~ 60°C), dual redundant DC power (12/24/48VDC), DIN-rail mounting |
| Suffix -T | Extended temperature version (-40°C ~ 75°C), for extreme temperature environments |
- Main Technical Specifications (Order No.: 03323800)
| Parameter | Value | Remarks |
| Product Type | Layer 2 Managed Industrial Ethernet Switch | Entry-level managed switch with basic Layer 2 functions |
| Port Configuration | 6 × 10/100BaseT(X) RJ45 + 2 × 100BaseFX Single-mode SC Fiber | Auto speed/duplex negotiation, Auto MDI/MDI-X |
| Network Standards | IEEE 802.3/802.3u/802.1Q/802.1D/802.1w | Supports core functions including VLAN, STP/RSTP and QoS |
| Redundancy Protocols | Turbo Ring/Chain (fault recovery < 20 ms for up to 250 nodes), RSTP/STP | Enhances network reliability, ideal for critical industrial control networks |
| Management Methods | Web Browser, CLI, Telnet/Serial Console, Windows Utility Tools | Multiple management options to adapt to different operation & maintenance habits |
| Security Features | IEEE 802.1X, Port Security, IP/MAC Binding, ACL | Compliant with IEC 62443 industrial cybersecurity standards |
| Maximum Transmission Distance | Twisted pair: 100 m; Single-mode fiber: 20 km (9/125μm) | Meets requirements for long-distance industrial communication |
| Power Input | Dual redundant DC input: 12/24/48VDC (18~30VAC optional) | Reverse polarity protection for improved power supply reliability |
| Power Consumption | Max. 10 W | Low power consumption, suitable for field industrial deployment |
| Operating Temperature | Standard: -10°C ~ 60°C; Extended (-T): -40°C ~ 75°C | Adaptable to harsh industrial environments |
| Storage Temperature | -40°C ~ 85°C | Satisfies strict transportation and storage conditions |
| Protection Class | IP30 | Dust-proof, designed for installation inside control cabinets |
| Mounting Type | DIN-rail mounting (compliant with EN 50022) | Standard industrial mounting for easy integration |
| Dimensions (W × H × D) | 135 × 100 × 44 mm | Compact structure to save installation space |
| Weight | Approx. 500 g | Lightweight for easy installation and maintenance |
| Certifications | CE, FCC, UL, DNV-GL, IEC 61850-3 | Compliant with international industrial standards and industry certifications |
- Full Model List (EDS-408A Series)
| Model | Port Configuration | Fiber Type | Temperature Range | Special Features | Order No. |
| EDS-408A-SS-SC-CNE | 6 × RJ45 + 2 × Single-mode SC | Single-mode | -10°C ~ 60°C | Model for China market | 3323800 |
| EDS-408A-SS-SC-T-CNE | 6 × RJ45 + 2 × Single-mode SC | Single-mode | -40°C ~ 75°C | Extended temperature, China version | 3323801 |
| EDS-408A-MM-SC | 6 × RJ45 + 2 × Multi-mode SC | Multi-mode | -10°C ~ 60°C | Standard model | 3323700 |
| EDS-408A-MM-ST | 6 × RJ45 + 2 × Multi-mode ST | Multi-mode | -10°C ~ 60°C | ST connector | 3323701 |
| EDS-408A-3M-SC | 3 × RJ45 + 5 × Multi-mode SC | Multi-mode | -10°C ~ 60°C | Multiple fiber ports | 3323702 |
| EDS-408A-3S-SC | 3 × RJ45 + 5 × Single-mode SC | Single-mode | -10°C ~ 60°C | Multiple single-mode fiber ports | 3323802 |
| EDS-408A-1M2S-SC | 7 × RJ45 + 1 × Multi-mode SC + 1 × Single-mode SC | Mixed | -10°C ~ 60°C | Mixed fiber ports | 3323703 |
| EDS-408A | 8 × RJ45 | No fiber port | -10°C ~ 60°C | All electrical ports | 3323600 |
| EDS-408A-T | 8 × RJ45 | No fiber port | -40°C ~ 75°C | All electrical ports, extended temperature | 3323601 |
| EDS-408A-EIP | 8 × RJ45 | No fiber port | -10°C ~ 60°C | Supports EtherNet/IP | 3323602 |
| EDS-408A-PN | 8 × RJ45 | No fiber port | -10°C ~ 60°C | Supports PROFINET | 3323603 |
- Replacement & Cross-Model Reference
4.1 MOXA Official Replacement & Upgrade Guide
| Legacy Model | Replacement Model | Upgrade Description |
| EDS-408-SS-SC | EDS-408A-SS-SC-CNE | Upgraded to A-series; added Turbo Chain, IPv6, Modbus/TCP, IEEE 1588 PTP and other functions |
| EDS-408-MM-SC | EDS-408A-MM-SC | Performance improved, cybersecurity enhanced, fully compliant with IEC 62443 |
| Early unmanaged switches | EDS-408A Series | Upgraded from unmanaged to managed type; supports advanced functions such as VLAN, QoS and redundancy protocols |
4.2 Cross-Brand Equivalent Models
| MOXA Model | Hirschmann | Schneider Electric | Advantech | Remarks |
| EDS-408A-SS-SC-CNE | RS2-6TX/2FX-SM EEC | TCSESM083F2CU0 | EKI-2528-SS-SC | 6 electrical ports + 2 single-mode SC fiber ports, Layer 2 managed, IP30, industrial grade |
| EDS-408A-MM-SC | RS2-6TX/2FX-MM EEC | TCSESM083F2MU0 | EKI-2528-MM-SC | 6 electrical ports + 2 multi-mode SC fiber ports, Layer 2 managed, industrial grade |
| EDS-408A-T | RS2-8TX EEC-T | TCSESM0831CU0-T | EKI-2528-T | 8 electrical ports, extended temperature, Layer 2 managed, industrial grade |
- Application Environments & Industry Cases
Applicable Scenarios
- Factory Automation: Production line control network, communication between PLC and HMI, robot control; supports real-time data transmission and network redundancy.
- Intelligent Transportation: Traffic signal control systems, highway monitoring, tunnel communication; single-mode fiber enables long-distance transmission.
- Energy Industry: Substation automation (IEC 61850-3), wind farm monitoring, petrochemical process control; dual redundant power ensures high reliability.
- Rail Transit: Train control & monitoring systems, platform equipment communication; compliant with EN 50155 railway standards.
- Water Treatment: SCADA systems for wastewater treatment plants, remote monitoring of pump stations; IP30 protection suits cabinet installation.
- Building Automation: Intelligent building control systems, security monitoring networks; VLAN function isolates different functional areas.
Not Recommended Scenarios
- High-Speed Data Centers: Only supports 10/100 Mbps, not applicable for Gigabit/10-Gigabit bandwidth requirements.
- Non-Industrial Outdoor Deployment: IP30 protection is only for indoor cabinet installation, not for outdoor use without extra protection.
- Scenarios Requiring Layer 3 Routing: Pure Layer 2 switching only. Select MOXA EDR series if routing functions are needed.
- PoE Power Supply Requirements: No PoE support. Choose MOXA EDS-P series to power cameras or wireless APs.
Typical Application Cases
Case 1: Automotive Component Production Line
Application: Connect PLCs, robots, sensors and HMIs to build a real-time control network for production data collection and equipment coordination.
Network Architecture: Adopts Turbo Ring redundant ring network with fault recovery time < 20 ms to ensure continuous production.
Installation: DIN-rail mounted inside control cabinet. 6 RJ45 ports connect field devices; 2 single-mode fiber ports link to central control room.
Outcome: Network downtime caused by faults reduced by 90%, production efficiency increased by 25%, and maintenance costs lowered.
Case 2: Smart Grid Substation
Application: Connect protective relays, smart meters and SCADA systems based on IEC 61850-3 to realize substation automation.
Key Features: Dual redundant power supply, extended temperature design (-40°C ~ 75°C), IEC 62443 cybersecurity, long-distance transmission via single-mode fiber.
Outcome: Improved power grid reliability, reduced manual inspection costs, and realized remote monitoring and fault diagnosis.
- Selection Guidelines & Quick Reference Rules
Quick Reference Rules
- EDS-408A: 8-port Layer 2 managed industrial switch; 405A: 5-port model. Select according to port quantity requirements.
- SS = Single-mode fiber (20 km), MM = Multi-mode fiber (2 km); SC/ST refer to fiber connector types. Select based on transmission distance and interface specifications.
- Suffix -T stands for extended temperature (-40°C ~ 75°C) for outdoor and extreme temperature environments; models without suffix use standard temperature range (-10°C ~ 60°C).
- Suffix CNE indicates China-specific model that meets local certification requirements, preferred for domestic projects.
- Turbo Ring/Chain is the core redundancy feature for critical control networks. Its <20 ms recovery time outperforms traditional RSTP.
- Dual redundant 12/24/48VDC power supply is essential for industrial applications to avoid network outage due to single-point power failure.
- Common Faults & Troubleshooting
| Fault Phenomenon | Possible Causes | Solutions |
| Abnormal port connection | 1. Damaged cable / Poor crimping of RJ45 connector | 1. Replace cable and re-crimp connectors |
| 2. Port disabled | 2. Enable the port via Web management page | |
| 3. Mismatched speed/duplex mode | 3. Set port to auto-negotiation mode | |
| Ring network redundancy failure | 1. Incorrect Turbo Ring configuration | 1. Verify ring network settings (Head/Tail node configuration) |
| 2. Broken fiber link | 2. Test fiber links and replace faulty fiber cables | |
| 3. Outdated switch firmware | 3. Upgrade firmware to the latest version | |
| Power failure | 1. Wrong wiring / Reverse polarity | 1. Check wiring and ensure correct polarity |
| 2. Damaged power module | 2. Replace faulty power module; utilize dual redundancy for reliability | |
| 3. Input voltage out of range | 3. Keep input voltage within 12/24/48VDC rated range | |
| Degraded network performance | 1. Broadcast storm | 1. Enable broadcast storm protection |
| 2. Port bandwidth saturation | 2. Configure QoS to prioritize control data transmission | |
| 3. Firmware vulnerabilities | 3. Update firmware regularly to fix security flaws | |
| Failed management access | 1. Incorrect IP address configuration | 1. Check IP settings or restore factory defaults via serial port |
| 2. Insufficient access permission | 2. Log in with administrator account and reset password | |
| 3. Firewall interception | 3. Unblock management ports (HTTP/HTTPS/Telnet) |
MOXA EDS-408A-SS-SC-CNE (Order No.: 03323800) is a Layer 2 managed switch designed for industrial environments. With flexible port combination (6 electrical ports + 2 single-mode SC fiber ports), Turbo Ring/Chain redundancy protocol (<20 ms recovery), dual redundant power supply and wide temperature adaptability, it is an ideal choice for factory automation, intelligent transportation, energy, rail transit and other industries. Its compact DIN-rail structure and IP30 protection enable easy integration inside control cabinets.
During model selection, confirm transmission distance (single/multi-mode fiber), operating temperature (standard/extended), port quantity and industry certifications. For new projects, the extended temperature version is recommended to adapt to diverse industrial working conditions.
