MOXA EDS-408A-MM-SC D201326

Technical Specifications (Core Parameters Bold)

Network Port Layout

• 6 × 10/100BaseT(X) Auto MDI/MDI-X RJ45 copper ports
• 2 × 100BaseFX multi-mode OM1 fiber ports, SC connector type
• Fiber Max Transmission Distance: 4 km @ 1300 nm wavelength

Management Protocol Support

• Network Management Protocols: SNMPv1 / SNMPv2c / SNMPv3, RMON Groups 1,2,3,9
• Ring Redundancy: MOXA Turbo Ring, IEEE 802.1w Rapid Spanning Tree (RSTP)
• QoS Mechanism: IEEE 802.1p class-of-service priority queuing, TOS/DiffServ traffic classification
• VLAN Function: IEEE 802.1Q tagged VLAN, port-based untagged VLAN segmentation
• Access Control: Port MAC address static lock, 802.1X port authentication
• Configuration Access Channels: Web GUI HTTP/HTTPS, RS232 console serial port, Telnet, SSH secure remote login

Electrical & Environmental Specifications

• Redundant Power Input: 12 ~ 48 VDC dual isolated terminal block power supply
• Max Power Draw: 5.2 W full operation load
• Fault Relay Output: Isolated dry contact relay for power failure, ring break, port link loss alert
• Operating Temperature Range: -40 °C ~ +75 °C
• Shock/Vibration Standard: IEC 60068-2-27, IEC 60068-2-6 industrial compliance
• Enclosure Rating: IP30 aluminum metal housing
• Mount Form: Standard 35 mm DIN rail mount, optional wall mounting bracket
• Overall Dimensions: 115 mm (W) × 140 mm (H) × 34 mm (D)
• Net Weight: 480 g

Switching Hardware Performance

• Backplane Switch Bandwidth: 1.6 Gbps
• Wire-Speed Forwarding Rate: 1.488 Mpps
• MAC Address Table Capacity: 2048 MAC address entries
• Supported Frame Size: Standard 1522 byte Ethernet jumbo frames

Functional Features

1. Complete Layer 2 managed switch feature set for industrial network segmentation and traffic prioritization
2. Proprietary MOXA Turbo Ring redundancy recovery time < 300 ms for critical production networks
3. Multi-level SNMP security with SNMPv3 encrypted remote network management access
4. RMON real-time traffic statistics monitoring for network fault diagnostic analysis
5. IEEE 802.1p QoS priority queuing ensures motion control and safety signal packet transmission priority
6. Dual redundant DC power input with hardware relay fault notification for power supply failure events
7. Batch serial code D201326 provides full production test traceability record from MOXA factory assembly line
8. Wide -40°C ~ +75°C temperature rating compatible with all indoor and semi-outdoor industrial cabinet installations

Working Principle

Material Composition & Structural Characteristics

• Main housing: Extruded black anodized aluminum alloy metal enclosure
• Internal PCB: Multi-layer FR4 industrial circuit board with ESD surge protection on all signal ports
• Fiber transceiver module: Solder-integrated multi-mode SC optical transceiver assembly
• Communication interfaces: RJ45 shielded copper jacks, RS232 console DB9 serial port
• Power terminals: Screw-clamp dual DC input terminal blocks with reverse polarity protection diode
• Mount fixture: Integral rear DIN rail clip bracket, separate wall mount accessory kit

Advantage Highlights

1. Balanced entry-level managed feature set without over-specification cost premium for mid-scale factory networks
2. Sub-300ms Turbo Ring fast redundancy minimizes production downtime during network cable failure
3. SNMPv3 encrypted remote management prevents unauthorized network configuration tampering
4. Hardware relay fault alarm provides PLC-interfaced network failure monitoring independent of IP communication
5. Dual fiber uplink ports enable redundant long-distance noise-immune inter-zone network connections
6. Dedicated production batch serial D201326 supports full factory quality assurance traceability for after-sales maintenance

Applicable Industries

Installation Requirements

1. Horizontal DIN rail mounting orientation required to maintain rated full -40~+75°C temperature performance
2. Separate dual DC power supply circuits connected to two independent input terminals for redundant power operation
3. All unused RJ45 and SC fiber ports sealed with factory dust caps to prevent metal contact oxidation
4. Minimum 15 mm vertical clearance above and below unit for passive convection heat dissipation
5. Shielded twisted pair CAT5e Ethernet cable mandatory for copper port wiring; shield ground connected to cabinet PE earth bar

Usage Precautions

1. Batch code D201326 is production trace identifier only; no hardware functional difference from standard EDS-408A-MM-SC units
2. Single-mode optical fiber insertion into multi-mode SC ports will destroy integrated optical transceiver components
3. Console RS232 port requires dedicated null-modem serial cable for local configuration access
4. Do not operate unit in direct water spray environments (IP30 rating limited to dust ingress protection only)
5. Flash memory configuration backup mandatory before firmware upgrade to avoid rule table corruption