Name: Industrial Layer-3 modular 28-port RM managed Gigabit Ethernet switch up to 24x10/100/1000Base-T(X) ports and 4x100/1000Base-X, SFP socket
Brand: ORing
SKU: MGL3-4SL-HV-R

Routes a modular slot-built port layout at the third layer.

A rack-mounted managed gigabit switch with four modular slots. It targets power automation and rolling stock networks that combine copper, fiber and 10G modules in one chassis.

4 slotsModular slot count

28 portsMaximum port count

128 GbpsSwitching Capacity

88~264 VACRedundant power input

19 inchesInstallation Type

43.5 WMaximum power consumption

Key features

4modular slots

Port layout on demand

Up to 3 slots take an 8 x 1G module and 1 slot takes a 4 x 10G module.

3layers

Connects subnets directly

Hardware routing, RIP and static routes carry traffic between subnets.

128Gbps

Non-blocking switching

Store-and-forward architecture forwards packets with 7 us latency.

32kMAC addresses

Wide address table

Learns and tracks a large number of devices in one table on big networks.

30ms

Ring recovery time

O-Ring, Open-Ring, O-Chain and MRP move a broken link to the backup path across a 250-unit ring.

IN DAILY USE

Serves inside the substationIt follows the IEC 61850-3 and IEEE 1613 requirements and operates in power substation and rolling stock environments.

The mounting kit ships in the boxThe rack-mount kit, console cable and quick installation guide all come in the package.

Encrypted management sessionHTTPS and SSH encrypt access, while the web interface, Telnet, console CLI and the Open-Vision utility support management.

ApplicationsPower distribution substations·Rolling stock applications·Rack-cabinet backbone installations

The operating temperature range narrows when a 10G SFP+ module is used.

Physical Ports

Slot Number

4 (up to 3 slots for 8x1G ports and 1 slot for 4x10G port)

Technology

Ethernet Standards

IEEE 802.3 for 10Base-T
IEEE 802.3u for 100Base-TX and 100Base-FX
IEEE 802.3ab for 1000Base-T
IEEE 802.z for 1000Base-X
IEEE 802.3ae for 10Gigabit Ethernet
IEEE 802.3x for Flow control
IEEE 802.3ad for LACP (Link Aggregation Control Protocol)
IEEE 802.1p for CoS (Class of Service)
IEEE 802.1Q for VLAN Tagging
IEEE 802.1w for RSTP (Rapid Spanning Tree Protocol)
IEEE 802.1s for MSTP (Multiple Spanning Tree Protocol)
IEEE 802.1x for Authentication
IEEE 802.1AB for LLDP (Link Layer Discovery Protocol)

MAC Table

32k

Packet Buffer

32Mbits

Flash Memory

128Mbits

DRAM Size

1Gbits

Jumbo Frame

Up to 9.6K Bytes

Priority Queues

Processing

Store-and-Forward

Switch Properties

Switching latency: 7 us
Switching bandwidth: 128Gbps
Max. number of available VLANs: 256
IGMP multicast groups: 128 for each VLAN
Port rate limiting: User define

Security Features

Device Binding security feature
Enable/disable ports, MAC based port security
Port based network access control (802.1x)
Single 802.1x and multiple 802.1x
MAC-based authentication
QoS assignment
Guest VLAN
MAC address limit
TACACS+
VLAN (802.1Q) to segregate and secure network traffic
Radius centralized password management
SNMPv3 encrypted authentication and access security
HTTPS / SSH enhance network security
Web and CLI authentication and authorization
Authorization (15 levels)
IP source guard

Software Features

Hardware routing, RIP and static routing
IEEE 1588v2 clock synchronization
IEEE 802.1D Bridge, auto MAC address learning/aging and static MAC address
Multiple Registration Protocol (MRP)
MSTP (RSTP/STP compatible)
Redundant Ring (O-Ring) with recovery time less than 30ms over 250 units
TOS/Diffserv supported
Quality of Service (802.1p) for real-time traffic
VLAN (802.1Q) with VLAN tagging
IGMP v2/v3 Snooping
IP-based bandwidth management
Application-based QoS management
DOS/DDOS auto prevention
Port configuration, status, statistics, monitoring, security
DHCP Server/Client
DHCP Relay
Modbus TCP
DNS client proxy
SMTP Client
NTP server

Network Redundancy

O-Ring
Open-Ring
O-Chain
MRP
MSTP (RSTP/STP compatible)

RS-232 Serial Console Port

RS-232 in RJ-45 connector with console cable. 115200bps, 8, N, 1

LED Indicators

System Ready Indicator (PWR)

Green: Indicates that the system is ready. The LED is blinking when the system is upgrading firmware

Power Indicator (PWR1 / PWR2)

Green: Power LED x 2

Ring Master Indicator (R.M.)

Green: Indicates that the system is operating in O-Ring Master mode

O-Ring Indicator (Ring)

Green: Indicates that the system is operating in O-Ring mode
Green blinking: Indicates that the ring is broken

Fault Indicator (Fault)

Amber: Indicates that an unexpected event occurred

Reset To Default Running Indicator (DEF)

Green: System resets to default configuration

Supervisor Login Indicator (RMT)

Green: System is accessed remotely

Smart LED Display System

Link/Act(LINK) / Speed(SPD) / Duplex(FDX) / Remote (RMT) green LED indicator x 4
Mode select button (MODE): Link/Act(LINK) / Speed(SPD) / Duplex(FDX) / Remote (RMT) mode select
Port 1 ~ 28 Link/Act(LK/ACT) LED show: Green x 28

Fault Contact

Relay

Relay output to carry capacity of 1A at 24VDC

Power

Redundant Power Input Modular

MGL3-4SL-HV-R-LV	Dual 24/48VDC (20~72VDC) power inputs at terminal block
MGL3-4SL-HV-R-HV	Dual 88~264VAC / 100~370VDC power inputs at terminal block

Power Consumption (Typ.)

MGL3-4SL-HV-R-LV	46 Watts max.
MGL3-4SL-HV-R-HV	43.5 Watts max.

Overload Current Protection

Present

Physical Characteristic

Enclosure

19 inches rack mountable

Weight (g)

MGL3-4SL-HV-R-LV	6450g
MGL3-4SL-HV-R-HV	6600g

Dimension (W x D x H)

440 (W) x 325 (D) x 44 (H) mm (17.32x12.8x1.73 inch)

Environmental

Storage Temperature

-40 to 85°C (-40 to 185°F)

Operating Temperature

10G SFP+ module absent: -40 to 85°C (-40 to 185°F)
10G SFP+ module used: -20 to 60°C (-4 to 140°F)

Operating Humidity

5% to 95% non-condensing

Regulatory Approvals

Power Automation

IEC 61850-3, IEEE 1613

EMI

FCC Part 15, CISPR (EN55022) class A, EN50155 (EN50121-3-2, EN55011, EN50121-4)

EMS

EN61000-4-2 (ESD)
EN61000-4-3 (RS)
EN61000-4-4 (EFT)
EN61000-4-5 (Surge)
EN61000-4-6 (CS)
EN61000-4-8
EN61000-4-11

Warranty

5 years

Packing List

Package Contents

MGL3-4SL-HV-R x 1
Rack-mount Kit x 1
ORing Tool CD x 1
Console Cable x 1
Quick Installation Guide x 1