MDS-G4020 Series

20G-port Layer 2 full Gigabit modular managed Ethernet switches

moxa-mds-g4020-series-image-1-(1).jpg | Moxa

moxa-mds-g4020-series-image-2-(1).jpg | Moxa

Features and Benefits

Multiple interface type modules for greater versatility
Tool-free design for effortlessly adding or replacing modules without shutting down the switch
Ultra-compact size and multiple mounting options for flexible installation
Passive backplane to minimize maintenance efforts
Rugged die-cast design for use in harsh environments
Intuitive, HTML5-based web interface for a seamless experience across different platforms
High EMC immunity compliant with IEC 61850-3 and IEEE 1613
Hardware-based IEEE 1588 PTP for high-precision time synchronization
IEC 62439-3 Clause 4 (PRP) and Clause 5 (HSR) compliant

Certifications

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Introduction

The MDS-G4020 Series modular switches support up to 20 Gigabit ports, including 4 embedded ports, 4 interface module expansion slots, and 2 power module slots to ensure sufficient flexibility for a variety of applications. The highly compact MDS-G4000 Series is designed to meet evolving network requirements, ensuring effortless installation and maintenance, and features a hot-swappable module design that enables you to easily change or add modules without shutting down the switch or interrupting network operations.

The multiple types of interface modules (RJ45, SFP, PoE+, and PRP/HSR) and power units (24/48 VDC, 110/220 VAC/VDC) provide even greater flexibility as well as suitability for different operating conditions, delivering an adaptive full Gigabit platform that provides the versatility and bandwidth necessary to serve as an Ethernet aggregation/edge switch. Featuring a compact design that fits in confined spaces, multiple mounting methods, and convenient tool-free module installation, the MDS-G4000 Series switches enable versatile and effortless deployment without the need for highly skilled engineers. With multiple industry certifications and a highly durable housing, the MDS-G4000 Series can reliably operate in tough and hazardous environments such as power substations, mining sites, ITS, and oil and gas applications. Support for dual power modules provides redundancy for high reliability and availability while LV and HV power module options offer additional flexibility to accommodate the power requirements of different applications.

In addition, the MDS-G4000 Series features an HTML5–based, user-friendly web interface providing a responsive, smooth user experience across different platforms and browsers.

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Pre-installed Modules

4 embedded Gigabit ports
Module

4 slots for optional FE/GE modules
Slot Combination

See the LM-7000H module series datasheet for more information.

Note: The required power module depends on the choice of LM-7000H module. Refer to the following power/module combination requirements.

LM-7000H non-PoE modules:
Any power module

Note: LM-7000H-2GPHR module must be used with MDS-G4000 v2.0.0 or above.

Note: The LM-7000H-2GPHR module can only be installed in one unit in slot M3.

LM-7000H PoE modules:
PWR-HV-P48, PWR-LV-P48 only
Standards

IEEE 802.3 for 10BaseT
IEEE 802.3u for 100BaseT(X) and 100BaseFX
IEEE 802.3ab for 1000BaseT(X)
IEEE 802.3z for 1000BaseX
IEEE 802.3x for flow control
IEEE 802.3ad for Port Trunk with LACP
IEEE 802.1Q for VLAN Tagging
IEEE 802.1D-2004 for Spanning Tree Protocol
IEEE 802.1w for Rapid Spanning Tree Protocol
IEEE 802.1p for Class of Service
IEEE 802.1X for authentication

Management

IPv4/IPv6
Flow control
Back Pressure Flow Control
DHCP Server/Client
ARP
RARP
DHCP Relay Agent (Option 82)
Fiber check
Port Mirroring (SPAN, RSPAN)
Linkup Delay
LLDP
SMTP
SNMP Trap
SNMP Inform
SNMPv1/v2c/v3
RMON
TFTP
SFTP
HTTP
HTTPS
Telnet
Syslog
Private MIB
Filter

GMRP
GVRP
GARP
802.1Q VLAN
IGMP Snooping v1/v2/v3
IGMP Querier
Redundancy Protocols

Link Aggregation
MRP
MRP Interconnection
MSTP
Multiple Dual Homing
Multiple Network Coupling
Network Loop Protection
Ring Coupling
RSTP
STP
Tracking
Turbo Chain
Turbo Ring v2
Security

Access control list
Broadcast storm protection
DHCP Snooping
Dynamic ARP Inspection
HTTPS/SSL
IEEE 802.1AE MAC security
IP Source Guard
Login and Password Policy
MAC authentication bypass
MAC Sticky
RADIUS
Rate Limit
SSH
Static Port Lock
TACACS+
Trust access control
Time Management

SNTP
IEEE 1588v2 PTP (hardware-based)
Supported power profiles: IEEE 1588 Default 2008, IEC 61850-9-3-2016, IEEE C37.238-2017
NTP Server/Client
NTP Authentication
Protocols

802.1X
ARP
DHCP Client
DHCP Server
DNS
HTTP
HTTPS
ICMP
IPv4/IPv6
NTP Client
QoS
RARP
RMON
SMTP
SNMPv1/v2c/v3
Syslog
TCP/IP
Telnet
TFTP
UDP
VLAN Assignment
Industrial Protocols

EtherNet/IP
Modbus TCP
PROFINET
MIB

P-BRIDGE MIB
Q-BRIDGE MIB
IEEE8021-SPANNING-TREE-MIB
IEEE8021-PAE-MIB
IEEE8023-LAG-MIB
LLDP-EXT-DOT1-MIB
LLDP-EXT-DOT3-MIB
SNMPv2-MIB
RMON MIB Groups 1, 2, 3, 9
Power Substation

1588 PTP Power Profile C37.238-2017
1588 PTP Power Profile IEC 61850-9-3
GOOSE Check
MMS

MAC Table Size

16 K
Max. No. of VLANs

256
VLAN ID Range

VID 1 to 4094
IGMP Groups

1024
Jumbo Frame Size

9.216 KB
Priority Queues

8
Packet Buffer Size

12 Mbits

LED Indicators

PWR, EPS, STATE, SYNC, FAULT, MSTR/HEAD, CPLR/TAIL

Console Port

RS-232 (RJ45)

USB Connector

USB Type A

Digital Input Channels

1 (On MGMT Module)
Digital Inputs

+13 to +30 V for state 1
-30 to +3 V for state 0
Max. input current: 8 mA
Alarm Contact Channels

3 (On MGMT, PWR1, PWR2 Module)
Relay output with current carrying capacity of 2 A @ 30 VDC
Buttons

Reset button

Input Voltage

With PWR-HV-P48 installed:
110/220 VDC, 110 VAC, 60 HZ, 220 VAC, 50 Hz, PoE: 48 VDC

With PWR-LV-P48 installed:
24/48 VDC, PoE: 48 VDC

With PWR-HV-NP installed:
110/220 VDC, 110 VAC, 60 HZ, 220 VAC, 50 Hz

With PWR-LV-NP installed:
24/48 VDC
Operating Voltage

With PWR-HV-P48 installed:
88 to 300 VDC, 90 to 264 VAC, 47 to 63 Hz, PoE: 46 to 57 VDC

With PWR-LV-P48 installed:
18 to 72 VDC (24/48 VDC for hazardous location), PoE: 46 to 57 VDC (48 VDC for
hazardous location)

With PWR-HV-NP installed:
88 to 300 VDC, 90 to 264 VAC, 47 to 63 Hz

With PWR-LV-NP installed:
18 to 72 VDC
Input Current

With PWR-HV-P48/PWR-HV-NP installed:
Max. 0.30 A @ 110 VDC
Max. 0.15 A @ 220 VDC
Max. 0.60 A @ 110 VAC
Max. 0.40 A @ 220 VAC

With PWR-LV-P48/PWR-LV-NP installed:
Max. 1.5 A @ 24 VDC
Max. 0.75 A @ 48 VDC

EPS (PoE models only):
Max. 8.2 A @ 48 VDC

Note: These are the input current ratings for the device with the maximum number of modules installed.
Power Consumption (Max.)

With PWR-HV-P48/PWR-HV-NP installed:
Max. 33.0 W @ 110 VDC
Max. 34.0 W @ 220 VDC
Max. 35.8 W @ 110 VAC
Max. 38.0 W @ 220 VAC

With PWR-LV-P48/PWR-LV-NP installed:
Max. 36.0 W @ 24 VDC
Max. 36.0 W @ 48 VDC

Note: These are the maximum power consumption ratings for the device with the maximum number of modules installed.
Max. PoE Power Output per Port

36 W
Total PoE Power Budget

Max. 360 W (with one power supply) for total PD consumption at 48 VDC input for PoE systems

Max. 360 W (with one power supply) for total PD consumption at 53 to 57 VDC input for PoE+ systems

Max. 720 W (with two power supplies) for total PD consumption at 48 VDC input for PoE systems

Max. 720 W (with two power supplies) for total PD consumption at 53 to 57 VDC input for PoE+ systems
Overload Current Protection

Supported
Reverse Polarity Protection

Supported

IP Rating

IP40
Dimensions

176 x 115 x 163.25 mm (6.93 x 4.53 x 6.44 in)
Weight

2500 g (5.51 lb)
Installation

DIN-rail mounting
Wall mounting (with optional kit)
Rack mounting (with optional kit)

Operating Temperature

Standard Temperature: -10 to 60°C (14 to 140°F)
Wide Temperature: -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

EN IEC 62368-1
IEC 60950-1
IEC 62368-1
UL 62368-1
EMC

EN 55032/35
EN 61000-6-2/-6-4
EMI

CISPR 32, FCC Part 15B Class A
EMS

IEC 61000-4-2 ESD: Contact: 8 kV; Air: 15 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 20 V/m
IEC 61000-4-4 EFT: Power: 4 kV; Signal: 4 kV
IEC 61000-4-5 Surge: Power: 4 kV; Signal: 4 kV
IEC 61000-4-6 CS: 10 V
IEC 61000-4-8 PFMF
IEC 61000-4-11 Voltage Dips & Interruptions
Railway

EN 50121-4
Traffic Control

NEMA TS2
Shock

IEC 60068-2-27
Freefall

IEC 60068-2-31
Vibration

IEC 60068-2-6
Hazardous Locations

ATEX
Class I Division 2
Power Substation

IEEE 1613
IEC 61850-3

Time

1,007,790 hrs
Standards

Telcordia Standard SR-332

Warranty Period

5 years
Details

See www.moxa.com/warranty

Download datasheet

Software, Firmware, and Drivers

Name	Type	Checksum	Version	Operating System	Release Date
Software Package for MXview One Series (Windows version) 240.7 MB	Software Package	C9CA47BD9F8DF8572A4BE0057160CE238783FAA7E17FEFF184E3D5FF4092BD47C152C69E8A8F611E0A5EE3DF4A4F319AEAA70E2F1539DC467FAAECE541E52226 SHA-512	v1.6.1	Windows 10 Windows 11 Windows Server 2016 Windows Server 2019 Windows Server 2022	Sep 05, 2025 Sep 05, 2025 Release notes
Software Package for MXview One Series (Linux version) 554.4 MB	Software Package	D87455B0269026E60219AF682DDF8AB130474AF29FB83160381C5FB4E6F2D9725CA6129EE057C16ADDAD9C6D343F6B403AAC4D18D9528FAD22A7DA60D6044392 SHA-512	v1.6.1	Ubuntu 18.04 Ubuntu 20.04 Ubuntu 22.04	Sep 05, 2025 Sep 05, 2025 Release notes
GSD file for MDS-G4000 Series 73.9 KB	Software Package	1DAC76AF099108CD4A06AA3100E2F31328F574CB4D0AFE182E0786D52884179F9AF8804FC4B77D8BF7F7182215013F33E02287113F41F9D1ADF6E56AA2B70950 SHA-512	v1.0		Aug 01, 2025 Aug 01, 2025 Release notes
Firmware for MDS-G4000 Series 57.5 MB	Firmware	7EC791E5CDF0C8CCBC055493507C9C302B9FBA66D651ACF0C0BDC1533ADE9B0177FD25F906C5B3DCCF65043E828EE8624D7926871D600DCA8DDD1E64BF42221C SHA-512	v5.0		Aug 01, 2025 Aug 01, 2025 Release notes
MIB file for MDS-G4000 Series 428.4 KB	Software Package	3ADB2BB1091A2037867A7E7BA87603034586A96E52E200666024EAF46CD1027CCCE426B14F8B6B07C1E76BBF8C0BE9129E7155F8BEECFCF6C73953FBD6E8B25C SHA-512	v5.0		Aug 01, 2025 Aug 01, 2025 Release notes
AOI file for MDS-G4000 Series 57.6 KB	Software Package	75CF95D574C782E6A82BB0F66D3D843885A071DCABB2937C9C236DD3F2E107358F2D792F0D3B753F649984E4AB02A1A4547B27195026540379DEBF73FB1ACE4A SHA-512	v2.0		Aug 01, 2025 Aug 01, 2025 Release notes
EDS file for MDS-G4000 Series 147.9 KB	Software Package	E35A6C429A04ECE6EB9E11CE00E5D252BBDDCC975228C50E047FD13F7BB711F7190BBE035B1B359B3B94F7C9E343346EC2416BCADB25A7BBC513583DFF79924D SHA-512	v2.0		Aug 01, 2025 Aug 01, 2025 Release notes
Firmware for MDS-G4000 Series 65.8 MB	Firmware	3FB39ADA3F72D1BC7D9075DDD889DEC232B118DBC82E51C262571910041DB413A4FFF2D29F4949C6C976A3ADAB997DC546EE24CEE23AC04F7351A0CC1BD49C14 SHA-512	v4.0		Sep 26, 2023 Sep 26, 2023 Release notes
Software Package for MDS-G4000 Series (MIB file) 376.1 KB	Software Package	6997B10F295A6477B041D4B9FE0835F49F319C93D6EF53986849F40CFFC9935FF22739BC8ABE28013D0CD0E15A294EFBB8904F67088164C9DA2CEDDA3456C700 SHA-512	v4.0		Sep 26, 2023 Sep 26, 2023 Release notes

Support Documents

Name	Type	Version	Release Date
Moxa Managed Switch MX-NOS (v5.x) Command Line Interface User Manual 6.8 MB	Manual	v1.1	Aug 01, 2025 Aug 01, 2025
Moxa Managed Switch MX-NOS (v5.x) User Manual 23.3 MB	Manual	v1.1	Aug 01, 2025 Aug 01, 2025
QIG for MDS-G4000/MDS-G4000-L3 Series 1.7 MB	QIG	v1.8	Aug 01, 2025 Aug 01, 2025
FOSS Statement for MX-NOS v5.x 1.2 MB	Declaration	v1.1	Aug 01, 2025 Aug 01, 2025
Datasheet for MDS-G4020 Series 1.3 MB	Datasheet	v1.7	Aug 01, 2025 Aug 01, 2025
FOSS Statement for Various MDS, MDS4XGS, RKS, EDS Series Products 2.2 MB	Declaration	v1.0	Aug 14, 2024 Aug 14, 2024
Moxa Managed Switch Next-generation OS (v4.x) Layer 2 Command Line Interface User Manual 5.4 MB	Manual	v1.2	Jun 26, 2024 Jun 26, 2024
Moxa Managed Switch Next-generation OS (v4.x) Layer 2 User Manual 18.7 MB	Manual	v1.3	Jun 26, 2024 Jun 26, 2024
Declaration of Conformity for MDS-G4012/G4020/G4028 Series with LM-7000H 525.7 KB	Declaration	v1.0	Sep 20, 2023 Sep 20, 2023
2D CAD for MDS-G4020 Series 1.8 MB	2D CAD		Mar 31, 2020 Mar 31, 2020

Available Models (2)

Show Images

	Compare MDS-G4020	Compare MDS-G4020-T
Layer	2	2
Total No. of Ports	20	20
100/1000Base SFP Slots	Up to 16	Up to 16
10/100/ 1000BaseT(X) Ports RJ45 Connector	Up to 20	Up to 20
PoE 10/100/ 1000BaseT(X) Ports RJ45 Connector	Up to 16	Up to 16
10/100BaseT(X) Ports RJ45 Connector	Up to 16	Up to 16
PoE 10/ 100BaseT(X) Ports RJ45 Connector	Up to 16	Up to 16
Operating Temp.	-10 to 60°C	-40 to 75°C
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MDS-G4020 Series

20G-port Layer 2 full Gigabit modular managed Ethernet switches

Features and Benefits

Certifications

Introduction

Ethernet Interface

Pre-installed Modules

Module

Slot Combination

Standards

Ethernet Software Features

Management

Filter

Redundancy Protocols

Security

Time Management

Protocols

Industrial Protocols

MIB

Power Substation

Switch Properties

MAC Table Size

Max. No. of VLANs

VLAN ID Range

IGMP Groups

Jumbo Frame Size

Priority Queues

Packet Buffer Size

LED Interface

LED Indicators

Serial Interface

Console Port

USB Interface

USB Connector

Input/Output Interface

Digital Input Channels

Digital Inputs

Alarm Contact Channels

Buttons

Power Parameters

Input Voltage

Operating Voltage

Input Current

Power Consumption (Max.)

Max. PoE Power Output per Port

Total PoE Power Budget

Overload Current Protection

Reverse Polarity Protection

Physical Characteristics

IP Rating

Dimensions

Weight

Installation

Environmental Limits

Operating Temperature

Storage Temperature (package included)

Ambient Relative Humidity

Standards and Certifications

Safety

EMC

EMI

EMS

Railway

Traffic Control

Shock

Freefall

Vibration

Hazardous Locations

Power Substation

MTBF

Time

Standards

Warranty

Warranty Period

Details

Software, Firmware, and Drivers

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Support Documents

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Available Models (2)