EN50155 8-port managed Ethernet switch with 8x10/100Base-T(X), M12 connector


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• Leading EN50155-compliant Ethernet switch for rolling stock application
• World’s fastest Redundant Ethernet Ring: O-Ring
   (recovery time < 10ms over 250 units of connection)
• Open-Ring support the other vendor’s ring technology in open architecture
• O-RSTP support applications with complex topology
• STP/RSTP/MSTP supported
• Support PTP Client (Precision Time Protocol) clock synchronization
• IGMP v2/v3 (IGMP snooping support) for filtering multicast traffic
• Port Trunking for easy of bandwidth management
• SNMP v1/v2c/v3 support for secured network management
• RMON for traffic monitoring
• Support LLDP protocol
• Port lock to prevent access from unauthorized MAC address
• Event notification through Syslog, Email, SNMP trap, and Relay Output
• Windows utility (Open-Vision) support centralized management and configurable
   by Web-based, Telnet, Console, CLI
• Environmentally sealed by IP-67 grade protection and ultra-rugged enclosure
   for toughest industrial usages
• M12 connectors to guarantee reliable operation against environmental disturbances
• Wall mounting enabled


Physical Ports  
10/100 Base-T(X) Ports in M12 (D-coding) Auto MDI/MDIX 8
RS-232 Serial Console Port in A-coding

RS-232 in M12 connector. Baud rate setting: 9600bps, 8, N, 1


Ethernet Standards

IEEE 802.3 for 10Base-T
IEEE 802.3u for 100Base-TX
IEEE 802.3x for Flow control
IEEE 802.3ad for LACP (Link Aggregation Control Protocol )
IEEE 802.1D for STP (Spanning Tree Protocol)
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: 1.6Gbps
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
Radius centralized password management
SNMP v1/v2c/v3 encrypted authentication and access security

Software Feature

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
Support PTP Client (Precision Time Protocol) clock synchronization
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

LED Indicators  
Power Indicator Green : Power LED x 2
R.M. Indicator

Green : Indicate system operated in O-Ring Master mode

Ring Indicator Green : indicate system operated in O-Ring mode

Fault Indicatorr

Amber : Indicate unexpected event occurred

10/100Base-T(X) M12 Port Indicator

Green for port Link/Act. Amber for Duplex/Collision
Fault contact  

Relay output to carry capacity of 3A at 24VDC on M12 connector (A-coding)

Redundant Input Power

Dual 12~48VDC on 5-pin M23 connector

Power Consumption (Typ.) 5 Watts
Overload Current Protection Present
Reverse Polarity Protection Present
Physical Characteristic  
Enclosure IP-40
Dimension (W x D x H)

125 (W) x 65 (D) x196 (H) mm

Weight (g)

896 g

Storage Temperature -40 to 85°C (-40 to 185°F)
Operating Temperature -40 to 70°C (-40 to 158°F)
Operating Humidity 5% to 95% Non-condensing
Regulatory approvals  
EMI FCC Part 15, CISPR (EN55022) class A, EN50155 (EN50121-3-2, EN55011, EN50121-4)

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

Shock IEC60068-2-27
Free Fall IEC60068-2-32
Vibration IEC60068-2-6
Safety EN60950-1
Warranty 5 years



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