8-port Un Management Industrial Ethernet Switch MOXA EDS-208A
The EDS-208A Series 8-port industrial Ethernet switches support IEEE 802.3 and IEEE 802.3u/x with 10/100M full/half-duplex, MDI/MDI-X auto- sensing. The EDS-208A Series has 12/24/48 VDC (9.6 to 60 VDC) redundant power inputs that can be connected simultaneously to live DC power sources. These switches have been designed for harsh industrial environments, such as in maritime (DNV/GL/LR/ABS/NK), rail wayside, highway, or mobile applications (EN 50121-4/NEMA TS2/e-Mark), or hazardous locations (Class I Div. 2, ATEX Zone 2) that comply with FCC, UL, and CE standards.
The EDS-208A switches are available with a standard operating temperature range from -10 to 60°C, or with a wide operating temperature range from -40 to 75°C. All models are subjected to a 100% burn-in test to ensure that they fulfill the special needs of industrial automation control applications. In addition, the EDS-208A switches have DIP switches for enabling or disabling broadcast storm protection, providing another level of flexibility for industrial applications.
Ethernet Interface
10/100BaseT(X) Ports (RJ45 connector) |
EDS-208A/208A-T: 8 EDS-208A-M-SC/M-ST/S-SC Series: 7 EDS-208A-MM-SC/MM-ST/SS-SC Series: 6 All models support: Auto negotiation speed Full/Half duplex mode Auto MDI/MDI-X connection |
100BaseFX Ports (multi-mode SC connector) |
EDS-208A-M-SC Series: 1 EDS-208A-MM-SC Series: 2 |
100BaseFX Ports (multi-mode ST connector) |
EDS-208A-M-ST Series: 1 EDS-208A-MM-ST Series: 2 |
100BaseFX Ports (single-mode SC connector) |
EDS-208A-S-SC Series: 1 EDS-208A-SS-SC Series: 2 |
Standards | IEEE 802.3 for 10BaseT IEEE 802.3u for 100BaseT(X) and 100BaseFX IEEE 802.3x for flow control |
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Optical Fiber | 100BaseFX | ||||
Fiber Cable Type | |||||
Typical Distance | 40 km | ||||
Wavelength TX Range (nm) 1260 to 1360 | 1280 to 1340 | ||||
RX Range (nm) 1100 to 1600 | 1100 to 1600 | ||||
TX Range (dBm) -10 to -20 | 0 to -5 | ||||
RX Range (dBm) -3 to -32 | -3 to -34 | ||||
Optical Power | Link Budget (dB) 12 to 29 | ||||
Dispersion Penalty (dB) 3 to 1 | |||||
Note:When connecting a single-mode fiber transceiver, we recommend using an attenuator to prevent damage caused by excessive optical power. Note: Compute the “typical distance” of a specific fiber transceiver as follows: Link budget (dB) > dispersion penalty (dB) + total link loss (dB). |
Switch Properties
MAC Table Size | 2 K |
Packet Buffer Size | 768 kbits |
Processing Type | Store and Forward |
Power Parameters
Connection | 1 removable 4-contact terminal block(s) |
Input Current | EDS-208A/208A-T, EDS-208A-M-SC/M-ST/S-SC Series: 0.11 A @ 24 VDC EDS-208A-MM-SC/MM-ST/SS-SC Series: 0.15 A @ 24 VDC |
Input Voltage | 12/24/48 VDC, Redundant dual inputs |
Operating Voltage | 9.6 to 60 VDC |
Overload Current Protection | Supported |
Reverse Polarity Protection | Supported |
DIP Switch Configuration
Ethernet Interface | Broadcast storm protection |
Physical Characteristics
Housing | Aluminum |
IP Rating | IP30 |
Dimensions | 50 x 114 x 70 mm (1.96 x 4.49 x 2.76 in) |
Weight | 275 g (0.61 lb) |
Installation | DIN-rail mounting, Wall mounting (with optional kit) |
Environmental Limits
Operating Temperature | Standard Models: -10 to 60°C (14 to 140°F) Wide Temp. Models: -40 to 75°C (-40 to 167°F) |
Storage Temperature (package included) | -40 to 85°C (-40 to 185°F) |
Ambient Relative Humidity | 5 to 95% (non-condensing) |
Standards and Certifications
EMC | EN 55032/24 |
EMI | CISPR 32, FCC Part 15B Class A |
EMS | IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV IEC 61000-4-3 RS: 80 MHz to 1 GHz: 10 V/m IEC 61000-4-4 EFT: Power: 2 kV; Signal: 1 kV IEC 61000-4-5 Surge: Power: 2 kV; Signal: 2 kV IEC 61000-4-6 CS: 10 V IEC 61000-4-8 PFMF |
Hazardous Locations | ATEX, Class I Division 2 |
Maritime | ABS, DNV-GL, LR, NK |
Railway | EN 50121-4 |
Safety | UL 508 |
Shock | IEC 60068-2-27 |
Traffic Control | NEMA TS2 |
Vibration | IEC 60068-2-6 |
Freefall | IEC 60068-2-31 |
MTBF
Time | 2,701,531 hrs |
Standards | Telcordia (Bellcore), GB |
Warranty
Warranty Period | 5 years |
Details | See www.moxa.com/warranty |
Package Contents
Device | 1 x EDS-208A Series switch |
Documentation | 1 x quick installation guide 1 x warranty card |

Model Name | 10/100BaseT(X) Ports RJ45 Connector | 100BaseFX Ports Multi-Mode, SC Connector |
100BaseFX PortsMulti-Mode, STConnector | 100BaseFX Ports Single-Mode, SC Connector |
Operating Temp. |
EDS-208A | 8 | – | – | – | -10 to 60°C |
EDS-208A-T | 8 | – | – | – | -40 to 75°C |
EDS-208A-M-SC | 7 | 1 | – | – | -10 to 60°C |
EDS-208A-M-SC-T | 7 | 1 | – | – | -40 to 75°C |
EDS-208A-M-ST | 7 | – | 1 | – | -10 to 60°C |
EDS-208A-M-ST-T | 7 | – | 1 | – | -40 to 75°C |
EDS-208A-MM-SC | 6 | 2 | – | – | -10 to 60°C |
EDS-208A-MM-SC-T | 6 | 2 | – | – | -40 to 75°C |
EDS-208A-MM-ST | 6 | – | 2 | – | -10 to 60°C |
EDS-208A-MM-ST-T | 6 | – | 2 | – | -40 to 75°C |
EDS-208A-S-SC | 7 | – | – | 1 | -10 to 60°C |
EDS-208A-S-SC-T | 7 | – | – | 1 | -40 to 75°C |
EDS-208A-SS-SC | 6 | – | – | 2 | -10 to 60°C |
EDS-208A-SS-SC-T | 6 | – | – | 2 | -40 to 75°C |
Power Supplies
DR-120-24 | 120W/2.5A DIN-rail 24 VDC power supply with universal 88 to 132 VAC or 176 to 264 VAC input by switch, or 248 to 370 VDC input, -10 to 60°C operating temperature |
DR-4524 | 45W/2A DIN-rail 24 VDC power supply with universal 85 to 264 VAC or 120 to 370 VDC input, -10 to 50° C operating temperature |
DR-75-24 | 75W/3.2A DIN-rail 24 VDC power supply with universal 85 to 264 VAC or 120 to 370 VDC input, -10 to 60°C operating temperature |
MDR-40-24 | DIN-rail 24 VDC power supply with 40W/1.7A, 85 to 264 VAC, or 120 to 370 VDC input, -20 to 70°C operating temperature |
MDR-60-24 | DIN-rail 24 VDC power supply with 60W/2.5A, 85 to 264 VAC, or 120 to 370 VDC input, -20 to 70°C operating temperature |
Wall-Mounting Kits
WK-30Wall-mounting kit, 2 plates, 4 screws, 40 x 30 x 1 mm
WK-46 | Wall-mounting kit, 2 plates, 8 screws, 46.5 x 66.8 x 1 mm |
Rack-Mounting Kits
RK-4U | 19-inch rack-mounting kit |
© Moxa Inc. All rights reserved. Updated May 22, 2020.
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