Moxa EDS-208A 8-Port Industrial Unmanaged Ethernet Switch

Description

• Model breakdown​ (Moxa EDS-208A naming):
  • EDS​ = Ethernet Switch
  • 208​ = 8-port model
  • A​ = Industrial-grade “A” generation (EDS-200A series)
  • -T​ suffix (optional) = Wide-temperature​ version: -40 to +75°C​ (vs. standard -10 to +60°C)
  • -M-SC / -MM-SC / -S-SC / -SS-SC​ (optional) = Fiber-optic variants with 1 or 2 × 100BaseFX ports (reducing RJ45 count to 7 or 6)
  • → EDS-208A​ = 8 × 10/100BaseT(X) RJ45, standard temp (-10 to 60°C), no fiber
  • → EDS-208A-T​ = 8 × 10/100BaseT(X) RJ45, wide temp (-40 to 75°C)
  • → EDS-208A-M-SC​ = 7 × RJ45 + 1 × 100BaseFX multimode SC fiber
  • → EDS-208A-MM-SC​ = 6 × RJ45 + 2 × 100BaseFX multimode SC fiber
  • → EDS-208A-S-SC​ = 7 × RJ45 + 1 × 100BaseFX single-mode SC fiber
  • → EDS-208A-SS-SC​ = 6 × RJ45 + 2 × 100BaseFX single-mode SC fiber

💡 “8-port” can mean different things!​ The plain EDS-208A​ and EDS-208A-T​ have 8 RJ45 ports​ . However, the fiber variants​ sacrifice RJ45 ports for fiber:

• EDS-208A-M-SC / -M-ST / -S-SC​ → 7 RJ45 + 1 fiber
• EDS-208A-MM-SC / -MM-ST / -SS-SC​ → 6 RJ45 + 2 fiber

If you need all 8 ports as RJ45​ → order EDS-208A​ (standard temp) or EDS-208A-T​ (wide temp). If you need to add fiber uplink → choose the -M-SC / -MM-SC / -S-SC variant accordingly.

⚠️ This is a 10/100 Mbps switch — NOT Gigabit!​ The EDS-208A series operates at 10/100BaseT(X)​ — 100 Mbps max per port . If your application requires 1000 Mbps (Gigabit), this switch is NOT suitable. You would need Moxa’s EDS-G308 (unmanaged Gigabit) or EDS-408A (managed Fast Ethernet) / EDS-G516E (managed Gigabit) series. The EDS-208A is purpose-built for legacy industrial networks where PLCs, HMIs, VFDs, and basic SCADA nodes communicate at 10/100 Mbps — which is still the vast majority of factory floor devices.

⚠️ Unmanaged = No VLAN, No SNMP, No QoS, No Ring!​ The EDS-208A is a pure Layer-2 unmanaged switch​ . It does NOT support:

• VLAN tagging / port-based VLAN
• SNMP monitoring
• QoS / traffic prioritization
• Turbo Ring / EtherNet/IP ring / MSTP
• Port mirroring / LACP / IGMP snooping

The only​ configurable feature is a DIP switch for broadcast storm protection​ (enable/disable) . If your network needs ring redundancy (e.g., Turbo Ring for SIS), managed features, or Gigabit speed → you need Moxa’s managed switch series (EDS-408A, EDS-518A, EDS-G508E, etc.). The EDS-208A is for simple, robust, set-and-forget industrial connectivity.

Key Features​

• 8 × 10/100BaseT(X) RJ45 ports​ — Auto-negotiation speed, full/half duplex, Auto MDI/MDI-X (crossover auto-sensing) — no crossover cables needed
• Redundant dual DC power input​ — 12/24/48 VDC (9.6–60 VDC operating range), two power inputs can be connected simultaneously for 1+1 redundancy
• Overload current protection + reverse polarity protection​ — wiring mistakes won’t kill the switch
• Industrial aluminum housing, IP30​ — rugged die-cast aluminum body, 275g lightweight
• DIN-rail or wall-mount​ — standard 35mm DIN rail clip; optional wall-mount kit
• Broadcast storm protection​ — DIP switch configurable (enable to prevent network storms from a faulty node)
• Store-and-forward switching​ — 2K MAC address table, 768 kbit packet buffer
• Wide certifications​ — UL 508, EN 62368-1, CE, FCC Class A, ATEX Class I Div. 2, EN 50121-4 (railway), NEMA TS2 (traffic), DNV/LR/ABS/NK (maritime)
• Extreme robustness​ — ESD 6kV contact / 8kV air, surge 2kV, vibration & shock rated per IEC 60068-2-6/27
• MTBF > 3.2 million hours​ (Telcordia Bellcore standard) — essentially “install and forget”
• 5-year Moxa warranty​ — Moxa’s standard industrial product warranty
• Compact size​ — 50 × 114 × 70 mm, fits anywhere in a crowded control cabinet

Technical Specifications (EDS-208A — 8-Port 10/100 Unmanaged Industrial Switch)

⚠️ Critical selection notes:

1. 10/100 Mbps only​ — Each port maxes at 100 Mbps . Do NOT use for Gigabit backbone, camera networks (multiple HD cameras), or high-throughput SCADA historian connections. For those, step up to Moxa EDS-G308 (unmanaged Gigabit) or EDS-G516E (managed Gigabit).
2. Unmanaged simplicity​ — No web interface, no console, no SNMP. Just connect and go. The ONLY adjustment is the broadcast storm protection DIP switch . If you need any managed functionality → look at EDS-408A (8-port managed Fast Ethernet) or EDS-G508E (8-port managed Gigabit).
3. Standard vs Wide-Temp​ — EDS-208A = -10 to 60°C (controlled factory cabinets, indoor). EDS-208A-T = -40 to 75°C (outdoor enclosures, solar-powered sites, Arctic/desert, trackside railway, freezers). If your cabinet gets below freezing or above 60°C → you MUST choose EDS-208A-T.
4. Redundant power wiring​ — The 4-contact terminal block has dual V+/V- pairs. For maximum uptime, connect two independent DC power sources​ (e.g., primary 24V PSU + backup 24V battery). If one fails, the switch keeps running transparently . Single-source wiring is also acceptable — just use one V+/V- pair.
5. RJ45-only vs Fiber variants​ — EDS-208A = 8 RJ45 (no fiber). If you need to extend beyond 100m copper (RJ45 max is 100m) → choose EDS-208A-M-SC (1 fiber, multimode, 4km) or EDS-208A-S-SC (1 fiber, single-mode, 40km) . Fiber ports reduce RJ45 count to 7 or 6.
6. 5-year Moxa warranty​ — Unlike the 12-month warranty typical for PLC/servo refurbished items, Moxa EDS-208A carries a full 5-year manufacturer warranty​ even for new units . This reflects Moxa’s confidence in the industrial durability of this switch.

EDS-208A Family Variants — Choose the Right One

Why EDS-208A Stands Out in Industrial Networks

Warranty & After-Sales

• Brand new units: 5 years Moxa warranty​ (Moxa’s standard industrial product warranty)
• Refurbished units: 1-2 years warranty (bench: 24VDC power-up → all 8 ports link at 100Mbps → traffic throughput test (hardware traffic generator) → broadcast storm protection DIP switch test → redundant power failover test (pull one PSU, switch stays up) → -40 to 75°C thermal chamber test for -T models)
• Technical support for:
  • EDS-208A vs EDS-208A-T selection​ (standard vs wide-temp — based on your cabinet’s lowest/highest ambient temp)
  • EDS-208A vs fiber variants​ (pure copper vs 1/2 fiber ports — we help determine if you need to extend beyond 100m copper)
  • Power wiring guidance​ (redundant 24VDC wiring diagram, terminal block pinout, overload/reverse-polarity protection explanation)
  • Broadcast storm protection DIP switch​ (when to enable: dense networks with potential loop/broadcast issues; when to disable: normal operation)
  • 10/100 Mbps bandwidth assessment​ (we verify your connected devices’ bandwidth needs; if >100Mbps aggregate per port is needed → recommend EDS-G308 Gigabit unmanaged)
  • Managed alternative recommendation​ (if you realize you need VLAN/ring/management → EDS-408A managed 8-port, or EDS-G508E managed Gigabit 8-port)
  • Moxa EDS-2000 series cross-reference​ (EDS-205A 5-port, EDS-208A 8-port, EDS-216A 16-port — for scaling your network)
  • Migration from other brands​ (replacing Cisco/Linksys/Hirschmann unmanaged switches with EDS-208A for industrial hardening)
• Optional: 24VDC DIN-rail power supply, redundant PSU for 1+1 power, fiber patch cables (SC-SC multimode/single-mode), RJ45 industrial Ethernet cables (Cat5e/6 STP), wall-mount kit, DIN rail jumper kit

Delivery Time

• Standard delivery: 3-5 working days (stock NOS — EDS-208A is Moxa’s highest-volume unmanaged switch, always available)
• Express shipping available upon request
• Note: Moxa factory lead time is excellent (< 2 weeks) as this is a current production flagship; we maintain NOS inventory globally for urgent replacement

Why Choose Our Store

• Genuine Moxa EDS-208A — not gray-market (the store-and-forward ASIC, redundant power conditioning circuit, and industrial EMI filtering are factory-calibrated; office-grade clones or counterfeits fail ESD/surge tests, overheat in sealed cabinets, and lack ATEX/EN50121 certifications)
• Global supply network with competitive pricing on full Moxa EDS-2000 unmanaged switch family (EDS-205A, EDS-208A, EDS-208A-T, EDS-216A, EDS-305, EDS-308, plus fiber variants)
• Expertise in Moxa industrial networking (EDS-208A vs EDS-208A-T temp rating, RJ45-only vs fiber variants, 10/100 Mbps bandwidth suitability, redundant DC power wiring, broadcast storm DIP configuration, unmanaged vs managed decision, EDS-2000 → EDS-G2000 migration for Gigabit needs, Moxa → Hirschmann/Phoenix Contact cross-reference)
• Comprehensive technical documentation (EDS-208A dimensional drawing, terminal block pinout, DIN-rail mounting guide, redundant power wiring diagram, fiber distance calculator for -M-SC/-S-SC variants, Moxa industrial networking selection guide)
• Responsive customer service and support

Applications

• Factory Floor PLC/HMI/VFD Networking: The #1 application — EDS-208A connects 8 industrial Ethernet devices (PLC CPU, HMI touchscreen, VFD, servo drive EtherCAT bridge, scanner, barcode reader, RFID, SCADA RTU) in a machine control cabinet. 100Mbps per port is more than enough for MODBUS/TCP, EtherNet/IP, PROFINET IRT, and basic SCADA traffic. The redundant 24VDC power ensures the network never goes down even if one PSU fails. The DIN-rail mount and 50mm width make it a perfect fit in crowded cabinets.
• Machine Builder Standard Switch: OEMs building packaging machines, CNC machines, robots, and assembly lines standardize on EDS-208A as the machine-level network hub. The 8 RJ45 ports cover the typical machine’s Ethernet device count. The 5-year warranty and 3.2M-hour MTBF mean the switch outlasts the machine itself. The aluminum IP30 housing survives the vibration and EMI of a running production line.
• Substation / Utility SCADA: In electrical substations, the EDS-208A connects IEDs (Intelligent Electronic Devices), RTU, and merging units. The -40 to 75°C wide-temp EDS-208A-T is mandatory here (outdoor enclosures, no climate control). The 24VDC redundant power matches the substation’s DC battery bank. The IEC 61850 GOOSE messaging (10/100 Mbps) runs perfectly over EDS-208A. ATEX certification is bonus for gas-insulated switchgear rooms.
• Railway Trackside / Signaling: EDS-208A-T (wide-temp) with EN 50121-4 certification connects trackside signaling equipment, level crossing controllers, and CCTV nodes. The vibration/shock resistance (IEC 60068-2-6/27) withstands passing trains. The redundant DC power tolerates railway 24VDC fluctuations. The -40 to 75°C range handles outdoor exposure.
• Building Management / HVAC: In large commercial buildings, EDS-208A networks BACnet/IP controllers, VAV boxes, chillers, and lighting control panels. The unmanaged simplicity means facility staff don’t need networking expertise — just plug in. The 5-year warranty minimizes maintenance calls.
• Water/Wastewater Treatment: PLCs, chemical dosing pumps, flow meters, and SCADA RTUs at remote well sites connect via EDS-208A. The wide-temp -T model handles uninsulated pump houses. The ATEX Class I Div. 2 certification covers areas with flammable gas exposure. The redundant DC power (solar + battery) keeps the network alive during grid outages.
• Marine / Shipboard Networks: EDS-208A with DNV/LR/ABS/NK maritime certification networks navigation equipment, engine control systems, and cargo monitoring on vessels. The aluminum IP30 housing resists corrosion. The -40 to 75°C -T model handles exposed deck-mounted enclosures.
• Legacy Network Expansion / Spare: For factories running 10+ year old industrial networks (many still at 10/100 Mbps), the EDS-208A is a perfect spare or expansion switch. When an old hub fails, a genuine EDS-208A drops in and immediately improves network performance (store-and-forward vs. shared-media hub) without requiring any reconfiguration of connected devices.
• Traffic Control / ITS: EDS-208A with NEMA TS2 certification connects traffic signal controllers, vehicle detectors, and CCTV cameras at intersections. The wide-temp -T model handles curbside cabinets in extreme climates. The redundant DC power (primary utility + backup battery) ensures continuous operation.