EDS-208A Series

8-port compact unmanaged Ethernet switches

Features and Benefits

10/100BaseT(X) (RJ45 connector), 100BaseFX (multi/single-mode, SC or ST connector)
Redundant dual 12/24/48 VDC power inputs
IP30 aluminum housing
Rugged hardware design well suited for hazardous locations (Class 1 Div. 2/ATEX Zone 2), transportation (NEMA TS2/EN 50121-4), and maritime environments (DNV/LR/ABS/NK)
-40 to 75°C wide operating temperature range (-T models)

Certifications

Introduction

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/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.

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10/100BaseT(X) Ports (RJ45 connector)

EDS-208A/208A-T Models: 8
EDS-208A-M-SC/M-ST/S-SC Models: 7
EDS-208A-MM-SC/MM-ST/SS-SC Models: 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 Models: 1
EDS-208A-MM-SC Models: 2
100BaseFX Ports (multi-mode ST connector)

EDS-208A-M-ST Models: 1
EDS-208A-MM-ST Models: 2
100BaseFX Ports (single-mode SC connector)

EDS-208A-S-SC Models: 1
EDS-208A-SS-SC Models: 2
Standards

IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3x for flow control

Optical Fiber

		100BaseFX
		Multi-Mode		Single-Mode
Fiber Cable Type		OM1	50/125 µm	G.652
Fiber Cable Type		OM1	800 MHz x km	G.652
Typical Distance		4 km	5 km	40 km
Wavelength	Typical (nm)	1300		1310
	TX Range (nm)	1260 to 1360		1280 to 1340
	RX Range (nm)	1100 to 1600		1100 to 1600
Optical Power	TX Range (dBm)	-10 to -20		0 to -5
	RX Range (dBm)	-3 to -32		-3 to -34
	Link Budget (dB)	12		29
	Dispersion Penalty (dB)	3		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).

MAC Table Size

2 K
Packet Buffer Size

768 kbits
Processing Type

Store and Forward

Connection

1 removable 4-contact terminal block(s)
Input Current

EDS-208A/208A-T, EDS-208A-M-SC/M-ST/S-SC Models: 0.11 A @ 24 VDC
EDS-208A-MM-SC/MM-ST/SS-SC Models: 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

Ethernet Interface

Broadcast storm protection

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)

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)

Safety

UL 508
EN 62368-1 (LVD)
EMC

EN 55032/35
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
Railway

EN 50121-4
Traffic Control

NEMA TS2
Vibration

IEC 60068-2-6
Shock

IEC 60068-2-27
Freefall

IEC 60068-2-31
Maritime

ABS
LR
NK
DNV

Time

EDS-208A: 3,248,014 hrs
EDS-208A-MM/SS: 2,705,157 hrs
EDS-208A-M/S: 2,943,335 hrs
Standards

Telcordia (Bellcore), GB

Warranty Period

5 years
Details

See www.moxa.com/warranty

Download datasheet

Support Documents

Name	Type	Version	Release Date
Datasheet for EDS-208A Series Download 732.0 KB	Datasheet	v2.4	Aug 26, 2025 Aug 26, 2025
QIG for EDS-205A/EDS-208A Series Download 1.7 MB	QIG	v8.5	Dec 25, 2024 Dec 25, 2024
Declaration of Conformity (EU/UK) for EDS-208A Series Download 312.7 KB	Declaration	v1.0	Feb 02, 2024 Feb 02, 2024
Tech Note: Recommended Procedure for STP Cable Grounding on Moxa's Industrial Ethernet Switches Download 558.3 KB	Tech Note	v1.0	Feb 12, 2019 Feb 12, 2019
2D CAD for EDS-208A-M-ST Download 248.1 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-208A Download 249.7 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-208A-MM-ST Download 240.8 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-208A-MM-SC Download 228.9 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-208A-S-SC Download 239.7 KB	2D CAD		Jan 19, 2018 Jan 19, 2018

Industrial Network Infrastructure Brochure

Technology Guide

Industrial Connectivity and Networking 101

Article

Give Your Edge Networks an Edge

Solution Brochure

Selection Guide for Moxa Connectivity Solution

White Paper

Six Tips on How to Lower the Total Cost of Ownership of Industrial IoT Networks

Available Models (14)

Show Images

	Compare EDS-208A	Compare EDS-208A-T	Compare EDS-208A-M-SC	Compare EDS-208A-M-SC-T
10/100BaseT(X) Ports RJ45 Connector	8	8	7	7
100BaseFX Ports Multi-Mode, SC Connector	–	–	1	1
100BaseFX Ports Multi-Mode, ST Connector	–	–	–	–
100BaseFX Ports Single-Mode, SC Connector	–	–	–	–
Operating Temp.	-10 to 60°C	-40 to 75°C	-10 to 60°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare EDS-208A-M-ST	Compare EDS-208A-M-ST-T	Compare EDS-208A-MM-SC	Compare EDS-208A-MM-SC-T
10/100BaseT(X) Ports RJ45 Connector	7	7	6	6
100BaseFX Ports Multi-Mode, SC Connector	–	–	2	2
100BaseFX Ports Multi-Mode, ST Connector	1	1	–	–
100BaseFX Ports Single-Mode, SC Connector	–	–	–	–
Operating Temp.	-10 to 60°C	-40 to 75°C	-10 to 60°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare EDS-208A-MM-ST	Compare EDS-208A-MM-ST-T	Compare EDS-208A-S-SC	Compare EDS-208A-S-SC-T
10/100BaseT(X) Ports RJ45 Connector	6	6	7	7
100BaseFX Ports Multi-Mode, SC Connector	–	–	–	–
100BaseFX Ports Multi-Mode, ST Connector	2	2	–	–
100BaseFX Ports Single-Mode, SC Connector	–	–	1	1
Operating Temp.	-10 to 60°C	-40 to 75°C	-10 to 60°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare EDS-208A-SS-SC	Compare EDS-208A-SS-SC-T
10/100BaseT(X) Ports RJ45 Connector	6	6
100BaseFX Ports Multi-Mode, SC Connector	–	–
100BaseFX Ports Multi-Mode, ST Connector	–	–
100BaseFX Ports Single-Mode, SC Connector	2	2
Operating Temp.	-10 to 60°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag

EDS-208A Series

Features and Benefits

Certifications

Introduction

Ethernet Interface

10/100BaseT(X) Ports (RJ45 connector)

100BaseFX Ports (multi-mode SC connector)

100BaseFX Ports (multi-mode ST connector)

100BaseFX Ports (single-mode SC connector)

Standards

Optical Fiber

Switch Properties

MAC Table Size

Packet Buffer Size

Processing Type

Power Parameters

Connection

Input Current

Input Voltage

Operating Voltage

Overload Current Protection

Reverse Polarity Protection

DIP Switch Configuration

Ethernet Interface

Physical Characteristics

Housing

IP Rating

Dimensions

Weight

Installation

Environmental Limits

Operating Temperature

Storage Temperature (package included)

Ambient Relative Humidity

Standards and Certifications

Safety

EMC

EMI

EMS

Hazardous Locations

Railway

Traffic Control

Vibration

Shock

Freefall

Maritime

MTBF

Time

Standards

Warranty

Warranty Period

Details

Support Documents

FILTER

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Solution Brochure

Industrial Network Infrastructure Brochure

Technology Guide

Industrial Connectivity and Networking 101

Article

Give Your Edge Networks an Edge

Solution Brochure

Selection Guide for Moxa Connectivity Solution

White Paper

Six Tips on How to Lower the Total Cost of Ownership of Industrial IoT Networks

Available Models (14)