EDS-308 Series

8-port unmanaged Ethernet switches

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Features and Benefits

Relay output warning for power failure and port break alarm
Broadcast storm protection
-40 to 75°C operating temperature range (-T models)

Certifications

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Introduction

The EDS-308 Ethernet switches provide an economical solution for your industrial Ethernet connections. These 8-port switches come with a built-in relay warning function that alerts network engineers when power failures or port breaks occur. In addition, the switches are designed for harsh industrial environments, such as the hazardous locations defined by the Class 1 Div. 2 and ATEX Zone 2 standards.

The switches comply with FCC, UL, and CE standards and support either a standard operating temperature range of -10 to 60°C or a wide operating temperature range of -40 to 75°C. All switches in the series undergo a 100% burn-in test to ensure that they fulfill the special needs of industrial automation control applications. The EDS-308 switches can be installed easily on a DIN rail or in a distribution box.

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Alarm Contact Channels

1 relay output with current carrying capacity of 1 A @ 24 VDC

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

EDS-308/308-T: 8
EDS-308-M-SC/308-M-SC-T/308-S-SC/308-S-SC-T/308-S-SC-80: 7
EDS-308-MM-SC/308-MM-SC-T/308-MM-ST/308-MM-ST-T/308-SS-SC/308-SS-SC-T/308-SS-SC-80: 6

All models support:
Auto negotiation speed
Full/Half duplex mode
Auto MDI/MDI-X connection
100BaseFX Ports (multi-mode SC connector)

EDS-308-M-SC: 1
EDS-308-M-SC-T: 1
EDS-308-MM-SC: 2
EDS-308-MM-SC-T: 2
100BaseFX Ports (multi-mode ST connector)

EDS-308-MM-ST: 2
EDS-308-MM-ST-T: 2
100BaseFX Ports (single-mode SC connector)

EDS-308-S-SC: 1
EDS-308-S-SC-T: 1
EDS-308-SS-SC: 2
EDS-308-SS-SC-T: 2
100BaseFX Ports (single-mode SC connector, 80 km)

EDS-308-S-SC-80: 1
EDS-308-SS-SC-80: 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 (40 km)	Single-Mode (80 km)
Fiber Cable Type		OM1	50/125 µm	G.652	G.652
Fiber Cable Type		OM1	800 MHz x km	G.652	G.652
Typical Distance		4 km	5 km	40 km	80 km
Wavelength	Typical (nm)	1300		1310	1550
	TX Range (nm)	1260 to 1360		1280 to 1340	1530 to 1570
	RX Range (nm)	1100 to 1600		1100 to 1600	1100 to 1600
Optical Power	TX Range (dBm)	-10 to -20		0 to -5	0 to -5
	RX Range (dBm)	-3 to -32		-3 to -34	-3 to -34
	Link Budget (dB)	12		29	29
	Dispersion Penalty (dB)	3		1	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).

Ethernet Interface

Port break alarm

MAC Table Size

2 kbits
Packet Buffer Size

768 K
Processing Type

Store and Forward

Input Current

EDS-308/308-T: 0.07 A @ 24 VDC
EDS-308-M-SC/S-SC Series, 308-S-SC-80: 0.12 A @ 24 VDC
EDS-308-MM-SC/MM-ST/SS-SC Series, 308-SS-SC-80: 0.15 A @ 24 VDC
Connection

1 removable 6-contact terminal block(s)
Operating Voltage

9.6 to 60 VDC
Input Voltage

Redundant dual inputs, 12/24/48 VDC
Reverse Polarity Protection

Supported
Overload Current Protection

Supported

Housing

Metal
IP Rating

IP30
Dimensions

53.6 x 135 x 105 mm (2.11 x 5.31 x 4.13 in)
Weight

790 g (1.75 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)

Hazardous Locations

ATEX, Class I Division 2
EMI

CISPR 32, FCC Part 15B Class A
EMC

EN 55032/24
Vibration

IEC 60068-2-6
EMS

IEC 61000-4-2 ESD: Contact: 6 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 MHz: 20 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
Safety

UL 508, UL 60950-1, CSA C22.2 No. 60950-1
Shock

IEC 60068-2-27
Freefall

IEC 60068-2-32

Time

255,528 hrs
Standards

MIL-HDBK-217F

Warranty Period

5 years
Details

See www.moxa.com/warranty

Download datasheet

Support Documents

Name	Type	Version	Release Date
QIG for EDS-308/EDS-309 Series 2.6 MB	QIG	v11.2	May 07, 2021 May 07, 2021
Datasheet for EDS-308 Series 823.7 KB	Datasheet	v1.1	Sep 11, 2019 Sep 11, 2019
2D CAD for EDS-308 Series (V2.0) 295.9 KB	2D CAD		Apr 08, 2019 Apr 08, 2019
2D CAD for EDS-308 Series (EDS-308-MM-SC V2.0) 283.0 KB	2D CAD		Apr 08, 2019 Apr 08, 2019
2D CAD for EDS-308 Series (EDS-308-MM-ST V2.0) 285.6 KB	2D CAD		Apr 08, 2019 Apr 08, 2019
2D CAD for EDS-308 Series (EDS-308-M-SC V2.0) 290.6 KB	2D CAD		Apr 08, 2019 Apr 08, 2019
Tech Note: Recommended Procedure for STP Cable Grounding on Moxa's Industrial Ethernet Switches 558.3 KB	Tech Note	v1.0	Feb 12, 2019 Feb 12, 2019
2D CAD for EDS-308-M-SC 292.2 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-308-M-ST 295.8 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-308-MM-SC 284.3 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-308-MM-ST 286.8 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-308 297.9 KB	2D CAD		Jan 19, 2018 Jan 19, 2018

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Available Models (14)

Show Images

	Compare EDS-308	Compare EDS-308-MM-SC	Compare EDS-308-MM-ST	Compare EDS-308-M-SC
10/100BaseT(X) Ports RJ45 Connector	8	6	6	7
100BaseFX Ports Multi-Mode, SC Connector	–	2	–	1
100BaseFX Ports Multi-Mode, ST Connector	–	–	2	–
100BaseFX Ports Single-Mode, SC Connector	–	–	–	–
Operating Temp.	-10 to 60°C	-10 to 60°C	-10 to 60°C	-10 to 60°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare EDS-308-S-SC	Compare EDS-308-S-SC-80	Compare EDS-308-SS-SC	Compare EDS-308-SS-SC-80
10/100BaseT(X) Ports RJ45 Connector	7	7	6	6
100BaseFX Ports Multi-Mode, SC Connector	–	–	–	–
100BaseFX Ports Multi-Mode, ST Connector	–	–	–	–
100BaseFX Ports Single-Mode, SC Connector	1	1	2	2
Operating Temp.	-10 to 60°C	-10 to 60°C	-10 to 60°C	-10 to 60°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare EDS-308-MM-SC-T	Compare EDS-308-MM-ST-T	Compare EDS-308-M-SC-T	Compare EDS-308-S-SC-T
10/100BaseT(X) Ports RJ45 Connector	6	6	7	7
100BaseFX Ports Multi-Mode, SC Connector	2	–	1	–
100BaseFX Ports Multi-Mode, ST Connector	–	2	–	–
100BaseFX Ports Single-Mode, SC Connector	–	–	–	1
Operating Temp.	-40 to 75°C	-40 to 75°C	-40 to 75°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-308-SS-SC-T	Compare EDS-308-T
10/100BaseT(X) Ports RJ45 Connector	6	8
100BaseFX Ports Multi-Mode, SC Connector	–	–
100BaseFX Ports Multi-Mode, ST Connector	–	–
100BaseFX Ports Single-Mode, SC Connector	2	–
Operating Temp.	-40 to 75°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag

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EDS-308 Series

8-port unmanaged Ethernet switches

Features and Benefits

Certifications

Introduction

Input/Output Interface

Alarm Contact Channels

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)

100BaseFX Ports (single-mode SC connector, 80 km)

Standards

Optical Fiber

DIP Switch Configuration

Ethernet Interface

Switch Properties

MAC Table Size

Packet Buffer Size

Processing Type

Power Parameters

Input Current

Connection

Operating Voltage

Input Voltage

Reverse Polarity Protection

Overload Current Protection

Physical Characteristics

Housing

IP Rating

Dimensions

Weight

Installation

Environmental Limits

Operating Temperature

Storage Temperature (package included)

Ambient Relative Humidity

Standards and Certifications

Hazardous Locations

EMI

EMC

Vibration

EMS

Safety

Shock

Freefall

MTBF

Time

Standards

Warranty

Warranty Period

Details