Leading Edge Networking Solutions


8-Port EN50155 Certified Railway IP67 waterproof Managed Gigabit PoE Switch


Atop’s EMG8508 IP67 rated Railway-compliant Ethernet switch is the best solution for providing high-speed Gigabit connectivity in bayside or carriage side Railway applications. Its rugged, aluminum enclosure can effectively protect the Switch core in any environment.

The 8-M12 Connectors Gigabit ports can supply up to 30W of PoE Power (802.3af or 802.3at) to your PoE device providing an overall maximum budget of 240W.

The embedded redundant-power supply input provides a reliable and failure-proof safety mechanism to minimize down-times. EMG8508 comes with redundant Low-Voltage DC power input (47~57 VDC). Each power module, including a Relay-output alarm, uses a S-coding M12 connector that makes EMG8508 ideal and simple for engineers setting up a Fault-Alarm System.

Its IP67 housing protection, combined with a wide operating temperature of -40 to 75°C and wall mounting capacities make it suitable to most Railway applications in harsh environments or industrial field applications.



  • 8x 10/100/1000 BASE-T(X) ports, M12 connector
  • Up to 8x 802.3af/at compliant PoE ports providing maximum 240W PoE power budget
  • Ring support the other vendor's ring technology in open architecture
  • U-Ring, STP, RSTP, MSTP supported
  • Automation Profiles: Profinet, Ethernet/IP, Modbus/TCP
  • Supports IEEE 1588 PTP V1/V2, IEEE 1588 Hardware E2E Transparent Clock
  • IGMP v2/v3 (IGMP snooping support)
  • Port Trunking for easy of bandwidth management
  • SNMP v1/v2c/v3 support; RMON for traffic monitoring
  • Event notification through Syslog, Email, SNMP trap
  • Centralized management; configurable by Web,Telnet, Console, CLI
  • 2x Relay outputs, 5-pin M12 A-Coding
  • Dual DC inputs
  • Rigid IP-67 housing according to EN 60529; wall mounting
  • EN50155, EN50121-4, IEC60571, EN45545-2 and UL 61010-2-201 certified
  • MTBF: 19,08 years MIL-HDBK-217F
  EMG8508-8POE EMG8508-4POE
Automation Profiles
Modbus/TCP status register
  • 8 x 10/100/1000Base-T(X) PSE Ports in M12
  • 1 x RS232 Console Port in M12
  • 2 x relay output
  • 4 x 10/100/1000Base-TX PSE + 4x 10/100/1000TX Ports in M12
  • 1 x RS232 Console Port in M12
  • 2 x relay output


IPv4, IPv6, IGMPv1/v2/v3, IGMP Snooping,GARP, GMRP, GVRP, SNMPv1/v2c/v3, SNMP Inform, ICMP, Telnet, SSH, DHCP Server/Relay/Client, DHCP Option 66/67/82, BootP, RARP, TFTP, NTP Server/Client, SNTP, SMTP, SMTP (Gmail), RMON, HTTP, HTTPS, Syslog, MRP (Client), LLDP, IEEE 1588 PTP V1/V2, IEEE 1588 Hardware Transparent Clock, 802.1x, EAP, RADIUS, TACACS+, Mirror port, QoS, ACL, Serial Console, U-Ring, ITU-T G.8032 ERPS Ring, STP, RSTP, MSTP, Compatible Ring

- Redundant Input Power: Dual DC inputs. on 5-pin terminal block

45 – 57 VDC, 3.08A max. , 138.6W (PoE 802.3af)
51 – 57 VDC, 5.03A max. , 256.53W (PoE 802.3at)

- Reverse Polarity Protection Present

Operating Temperature -40 to 75°C
Operating Humidity 5% to 95% Non-condensing

Physical Characteristics
Dimensions (mm): 216 x 232 x 72 mm
Enclosure: IP67

Warranty 5 years


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