Moxa - EDS 305/308 Unmanaged Industrial Ethernet Switches
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Features and Benefits
- Redundant dual 24 VDC power inputs
- Relay output warning for power failure and port break alarm
- Broadcast storm protection
- Transparent transmission of VLAN tagged packets
- -40 to 75˚C operating temperature range (T models)
Introduction
The EDS-305/308 are 5-port and 8-port Ethernet switches that provide an economical solution for your industrial Ethernet connections. The built-in relay warning function alerts network engineers when power failures or port breaks occur, and the switches are designed for harsh industrial environments, such as in hazardous locations (Class I, Div. 2/ATEX). The switches comply with FCC, TÜV, UL, and CE standards, and come in two model types. Standard operating temperature range models (0 to 60°C) and wide operating temperature range models (-40 to 75°C). Both models undergo a 100% burn-in test to ensure that they fulfill the special needs of industrial automation control applications. The EDS-305/308 switches can be installed easily on a DIN-Rail or in a distribution box.
Dimensions (unit=mm)

| • Technology: | |
| Standards | IEEE 802.3 for 10BaseT, IEEE 802.3u for 100BaseT(X), 100BaseFX, IEEE 802.3x for Flow Control |
| Processing Type | Store and Forward |
| Flow Control | IEEE802.3x full duplex, back pressure flow control |
| • Interface: | |
| RJ45 Ports | 10/100BaseT(X) auto negotiation speed, F/H duplex mode, and auto MDI/MDI-X connection |
| Fiber Port(s) | 100BaseFX ports (SC/ST connector) |
| LED Indicators | PWR1, PWR2, Fault, 10/100M (TP port), and 100M (Fiber port) |
| DIP Switches | Port break alarm mask |
| Alarm Contact | 1 relay output with current carrying capacity of 1A @ 24 VDC |
| • Optical Fiber |
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| • Physical Characteristics: | |
| Housing | Metal, IP30 protection |
| Weight | 630 g |
| Dimensions | 53.6 x 135 x 105 mm (2.11 x 5.31 x 4.13 in) |
| Installation | DIN-Rail mounting, wall mounting (with optional kit) |
| • Environmental Limits: | |
| Operating Temperature | Standard Models: 0 to 60°C (32 to 140°F) Wide Temp. Models: -40 to 75°C (-40 to 167°F) |
| Storage Temperature | -40 to 85°C (-40 to 185°F) |
| Ambient Relative Humidity | 5 to 95% (non-condensing) |
| • Power Requirements: | |
| Input Voltage | 24 VDC (12 to 48VDC), redundant inputs |
| Input Current | EDS-305: 0.13 A @ 24 V EDS-305-M/S: 0.17 A @ 24 V EDS-308: 0.13 A @ 24 V EDS-308-M/S: 0.21 A @ 24 V EDS-308-MM/SS: 0.26 A @ 24 V |
| Overload Current Protection | EDS-305, EDS-305-M, EDS-305-S, EDS-308: 1.1 A EDS-308-M/S/MM/SS: 1.6 A |
| Connection | 1 removable 6-pin terminal blocks |
| Reverse Polarity Protection | Present |
| • Agency Approvals: | |
| EMI | FCC Part 15, CISPR (EN55022) class A |
| EMS | EN61000-4-2 (ESD), level 3 EN61000-4-3 (RS), level 3 EN61000-4-4 (EFT), level 3 EN61000-4-5 (Surge), level 3 EN61000-4-6 (CS), level 2 |
| Safety | UL508, UL60950-1, CSA C22.2 No.60950-1, EN60950-1 |
| Hazardous Location | UL/cUL Class I, Division 2, Groups A, B, C and D; ATEX Class I, Zone 2, Ex nC IIC |
| Shock | IEC60068-2-27 |
| Freefall | IEC60068-2-32 |
| Vibration | IEC60068-2-6 |
| MTBF (meantime between failures) | Time: EDS-305 series: 422,000 hrs EDS-308 series: 255,000 hrs Database: MIL-HDBK-217F, GB 25˚C |
| Maritime | DNV, GL |
| • Warranty: | |
| Warranty Period | 5 years |
| Details | See www.moxa.com/warranty |
| Ordering Info | Model No. | Description |
| Click here to order |
EDS-305 |
Unmanaged Ethernet switch with 5 10/100BaseT(X) ports, 0 to 60°C operating temperature |
| Click here to order |
EDS-305-M-SC |
Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connector, 0 to 60°C operating temperature |
| Click here to order |
EDS-305-M-ST |
Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with ST connector, 0 to 60°C operating temperature |
| Click here to order |
EDS-305-S-SC |
Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, 0 to 60°C operating temperature |
| Click here to order |
EDS-305-S-SC-80 |
Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector for 80 km transmission, 0 to 60°C operating temperature |
| Click here to order |
EDS-308 |
Unmanaged Ethernet switch with 8 10/100BaseT(X) ports, 0 to 60°C operating temperature |
| Click here to order |
EDS-308-M-SC |
Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connector, 0 to 60°C operating temperature |
| Click here to order |
EDS-308-MM-SC |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, 0 to 60°C operating temperature |
| Click here to order |
EDS-308-MM-ST |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connector, 0 to 60°C operating temperature |
| Click here to order |
EDS-308-S-SC |
Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, 0 to 60°C operating temperature |
| Click here to order |
EDS-308-SS-SC |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors, 0 to 60°C operating temperature |
| Click here to order |
EDS-308-S-SC-80 |
Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector for 80 km transmission, 0 to 60°C operating temperature |
| Click here to order |
EDS-308-SS-SC-80 |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors for 80 km transmission, 0 to 60°C operating temperature |
| Ordering Info | Model No. | Description |
| Click here to order |
EDS-305-T |
Unmanaged Ethernet switch with 5 10/100BaseT(X) ports, -40 to 75°C operating temperature |
| Click here to order |
EDS-305-M-SC-T |
Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connector, -40 to 75°C operating temperature |
| Click here to order |
EDS-305-M-ST-T |
Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with ST connector, -40 to 75°C operating temperature |
| Click here to order |
EDS-305-S-SC-T |
Unmanaged Ethernet switch with 4 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-T |
Unmanaged Ethernet switch with 8 10/100BaseT(X) ports, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-M-SC-T |
Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connector, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-MM-SC-T |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-MM-ST-T |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connector, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-S-SC-T |
Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-SS-SC-T |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-S-SC-80-T |
Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector for 80 km transmission, -40 to 75°C operating temperature |
| Click here to order |
EDS-308-SS-SC-80-T |
Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors for 80 km transmission, -40 to 75°C operating temperature |
| Ordering Info | Model No. | Description |
| Click here to order | 45W/2A DIN-Rail 24 VDC power supply, 85 to 264 VAC input | |
| Click here to order | 75W/3.2A DIN-Rail 24 VDC power supply, 85 to 264 VAC input | |
| Click here to order | 120W/5A DIN-Rail 24 VDC power supply, 88 to 132 VAC/176 to 264 VAC input by switch | |
| Click here to order | 60W/2.5A DIN-Rail 24 VDC power supply with universal 85 to 264 VAC input, -20 to 70°C operating temperature | |
| Click here to order | 40W/1.7A DIN-Rail 24 VDC power supply with universal 85 to 264 VAC input, -20 to 70°C operating temperature |
| Ordering Info | Model No. | Description |
| Click here to order | 4U-high 19" rack mounting kit | |
| Click here to order | Wall Mounting Kit |




