2x1000M Optical Port + 6x10/100/1000 Base-T(X)
Web+SNMP Management
1+1 24VDC Power Supply Redundancy
RS232/RS485 Serial Port Optional
Bypass Function Optional


OTK300-2G6GSD is Web & SNMP managed redundant ring Ethernet switch with 6x10/100/1000Base-T(X) ports and 2xGigabit ports. The Ethernet switch is designed for industrial applications, such as rolling stock, vehicle, and railway applications. With completely support of Ethernet redundancy protocol, O-Ring (recovery time < 25ms over 128 units of connection), Open-Ring and MSTP/RSTP/STP (IEEE 802.1s/w/D) can protect your mission-critical applications from network interruptions or temporary malfunctions with its fast recovery technology. Another Open-Ring technology is also supported which can applied for other vendor's proprietary ring. OTK300-2G6GSD support new DDM (Digital Diagnostic Monitoring) function, which can monitor instantly the status of electronic voltage, current and temperature. OTK300-2G6GSD also provided machine operating temperature detects function, which can monitor operating temperature every time. OTK300-2G6GSD provided hardware watchdog function, which can keep machine working all the time. In addition, the wide operating temperature range from -40 to 85 oC can satisfy most of operating environment. Therefore, the switch is one of the most reliable choice for highly-managed and Fiber Ethernet

2. Features

Fast Redundant Ethernet Ring: O-Ring (recovery time < 25ms over 128 units of connection

Open-Ring support the other vendor’s ring technology in open architecture

Support standard IEC 62439-2 MRP (Media Redundancy Protocol) function

STP/RSTP/MSTP supported

IGMP v2/v3 (IGMC snooping support) for filtering multicast traffic

Port Trunking for easy of bandwidth management

RMON for traffic monitoring

Support LLDP (Link Layer Discovery Protocol)

Supports DDM (Digital Diagnostic Monitoring) function

Hardware watchdog support

Operating temperature detect support

Event notification through Syslog, Email, and Relay Output

Port lock to prevent access from unauthorized MAC address

Configurable by Web-Management , Console (CLI)

Rigid IP-30 housing design

Easily switch Din-rail and wall hanging

Bypass Function optional

Support 2ch RS485/232 Optional


10/100/1000 Base-T(X) Ports in RJ45 Auto MDI/MDIX


1000Base-X SFP


Ethernet Standards

IEEE 802.3 for 10Base-T

IEEE 802.3u for 100Base-TX and 100Base-FX

IEEE 802.3z for 1000Base-X

IEEE 802.3ab for 1000Base-T

IEEE 802.3x for Flow control

IEEE 802.3ad for LACP (Link Aggregation Control Protocol )

IEEE 802.1D for STP (Spanning Tree 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

8192 MAC addresses

Priority Queues




Switch Properties

Switching latency: 7 us

Switching bandwidth: 5.6Gbps

Max. Number of Available VLANs: 4096

IGMP multicast groups: 1024

Port rate limiting: User Define

Security Features

Enable/disable ports, MAC based port security

Port based network access control (802.1x)

VLAN (802.1Q ) to segregate and secure network traffic

Supports Q-in-Q VLAN for performance & security to expand the VLAN space

Software Features


Redundant Ring (O-Ring) with recovery time less than 10ms over 250 units

TOS/Diffserv supported

Quality of Service (802.1p) for real-time traffic

VLAN (802.1Q) with VLAN tagging and GVRP supported

IGMP Snooping for multicast filtering

Port configuration, status, statistics, monitoring, security

SNTP for synchronizing of clocks over network

DHCP Server / Client support

Port Trunk support

MVR (Multicast VLAN Registration) support

Network Redundancy





Warning / Monitoring System

Relay output for fault event alarming

Syslog server / client to record and view events

Include SMTP for event warning notification via email

Event selection support

DDM Function

Voltage / Current / Temperature

RS-232 Serial Console Port

RS-232 in RJ45 connector with console cable

Redundant Input Power

110~220V AC input

Power Consumption (Typ.)

<10 Watts

Overload Current Protection


Reverse polarity protection


Physical Characteristic




Dimension (W x D x H)

160mm×110mm ×37mm

Weight (Kg)




Storage Temperature

-40 to 85oC (-40 to 185oF)

Operating Temperature

-40 to 75oC (-40 to 167oF)

Operating Humidity

5% to 95% Non-condensing

Regulatory approvals



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



Free Fall







3 years

4. Order Information

OTK300-2G6GSD: Industrial Switch with 2 1000M Optical Port (SFP Socket)+ 610/100/1000M Electrica

Ethernet Port, support Web and SNMP Management, Desktop Unit,1+1 24VDC Power Supply Redundancy

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