EDS-305 Series

5-port unmanaged Ethernet switches

Features and Benefits

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

Certifications

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Introduction

The EDS-305 Ethernet switches provide an economical solution for your industrial Ethernet connections. These 5-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 I Div. 2, ATEX Zone 2, and IECEx standards.

The switches comply with FCC, UL, and CE standards and support either a standard operating temperature range of 0 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-305 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-305/305-T models: 5
EDS-305-M-SC/M-ST/S-SC/S-SC-80 models: 4

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

EDS-305-M-SC/M-SC-T: 1
100BaseFX Ports (multi-mode ST connector)

EDS-305-M-ST/M-ST-T: 1
100BaseFX Ports (single-mode SC connector)

EDS-305-S-SC/S-SC-T: 1
100BaseFX Ports (single-mode SC connector, 80 km)

EDS-305-S-SC-80: 1
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
Fiber Cable Type		OM1	OM2	OM3	OM4
Typical Distance		4 km	4 km	4 km	4 km
Wavelength	TX Range (nm)	1260 to 1360
Wavelength	RX Range (nm)	1100 to 1600
Optical Power	TX Range (dBm)	-10 to -20
	RX Range (dBm)	-3 to -32
	Link Budget (dB)	12
	Dispersion Penalty (dB)	3	3	3	3
		100BaseFX
		Multi-Mode		Single-Mode	Single-Mode
		Multi-Mode		(40 km)	(80 km)
Fiber Cable Type		50/125 µm		G.652	G.652
Fiber Cable Type		800 MHz x km		G.652	G.652
Typical Distance		5 km		40 km	80 km
Wavelength	TX Range (nm)	1260 to 1360		1280 to 1340	1530 to 1570
Wavelength	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 using a single-mode fiber transceiver over short distances, we highly recommend installing an attenuator to prevent damaging the transceiver due to excessive optical power. Note: To reach the "typical distance" of a fiber transceiver, the Link Budget (dB) should be greater than the combined Dispersion Penalty (dB) and Total Link Loss (dB).

Ethernet Interface

Port break alarm

MAC Table Size

2 K
Packet Buffer Size

768 kbits
Processing Type

Store and Forward

Connection

1 removable 6-contact terminal block(s)
Input Current

0.2 A (max.)
Input Voltage

12-48 VDC
Redundant dual inputs
Operating Voltage

9.6 to 60 VDC
Reverse Polarity Protection

Supported
Overload Current Protection

Supported

Housing

Metal
IP Rating

IP30
Dimensions

53 x 135 x 105 mm (2.09 x 5.32 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)

Safety

UL 61010-201-1
UL 62368-1
EN 62368-1
IEC 62368-1
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 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: 3 V
IEC 61000-4-8 PFMF
Hazardous Locations

ATEX
Class I Division 2
IECEx
Vibration

IEC 60068-2-6
Shock

IEC 60068-2-27
Freefall

IEC 60068-2-32
Maritime

DNV

Time

EDS-305 models: 3,821,019 hrs
EDS-305-M/S models: 3,327,332 hrs
Standards

Telcordia (Bellcore), GB

Warranty Period

5 years
Details

See www.moxa.com/warranty

Download datasheet

Name	Type	Version	Release Date
Declaration of Conformity for EDS-305 Series 307.5 KB	Declaration	v1.0	Apr 08, 2025 Apr 08, 2025
Datasheet for EDS-305 Series 774.7 KB	Datasheet	v1.2	Dec 31, 2024 Dec 31, 2024
QIG for EDS-305 Series 2.9 MB	QIG	v10.2	Dec 31, 2024 Dec 31, 2024
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-305 Series (EDS-305-M-SC) 490.6 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-305 Series (EDS-305) 465.0 KB	2D CAD		Jan 19, 2018 Jan 19, 2018
2D CAD for EDS-305 Series (EDS-305-M-ST) 492.1 KB	2D CAD		Jan 19, 2018 Jan 19, 2018

	Compare EDS-305-M-ST	Compare EDS-305-S-SC-T	Compare EDS-305-M-SC	Compare EDS-305-M-ST-T
10/100BaseT(X) Ports (RJ45 Connector)	4	4	4	4
100BaseFX Ports (Multi-mode, SC Connector)	–	–	1	–
100BaseFX Ports (Multi-mode, ST Connector)	1	–	–	1
100BaseFX Ports (Single-mode, SC Connector)	–	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-305-M-SC-T	Compare EDS-305-S-SC-80	Compare EDS-305-S-SC	Compare EDS-305
10/100BaseT(X) Ports (RJ45 Connector)	4	4	4	5
100BaseFX Ports (Multi-mode, SC Connector)	1	–	–	–
100BaseFX Ports (Multi-mode, ST Connector)	–	–	–	–
100BaseFX Ports (Single-mode, SC Connector)	–	1	1	–
Operating Temp.	-40 to 75°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-305-T
10/100BaseT(X) Ports (RJ45 Connector)	5
100BaseFX Ports (Multi-mode, SC Connector)	–
100BaseFX Ports (Multi-mode, ST Connector)	–
100BaseFX Ports (Single-mode, SC Connector)	–
Operating Temp.	-40 to 75°C
	Add to Quote View Bag

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EDS-305 Series

5-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

Connection

Input Current

Input Voltage

Operating 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

Safety

EMC

EMI

EMS

Hazardous Locations

Vibration

Shock

Freefall

Maritime

MTBF

Time

Standards

Warranty

Warranty Period

Details

Support Documents

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Available Models (9)

Industrial
Computing