The Moxa EDS-508A Series includes rugged 8-port managed Ethernet switches engineered for highly reliable and secure industrial networking. With Turbo Ring and Turbo Chain technology (recovery time < 20 ms with up to 250 switches), plus STP, RSTP, and MSTP support, these switches ensure maximum network uptime.

Security features such as TACACS+, SNMPv3, IEEE 802.1X, HTTPS, and SSH protect the network from unauthorized access. Management options include web browser, CLI, Telnet, serial console, Windows utility, and the ABC-01 module. MXstudio is also supported for visualized network control.

These switches support industrial protocols including EtherNet/IP, Modbus TCP, and PROFINET. Advanced networking features like VLAN (IEEE 802.1Q), QoS, IGMP snooping, port trunking, bandwidth management, RMON, and automatic alerting via email or relay output make them ideal for automation and control systems.

Technical Specifications (English):

Model Variants:

• EDS-508A: 8 x RJ45
• EDS-508A-MM/SS: 6 x RJ45 + 2 x 100BaseFX SC (multi-mode or single-mode)

Network Redundancy:

• Turbo Ring & Turbo Chain (recovery time < 20 ms @ 250 switches)
• STP / RSTP / MSTP
• Port trunking via LACP

Security Features:

• HTTPS, SSH
• TACACS+, RADIUS
• IEEE 802.1X
• MAC-based port locking
• Broadcast storm protection

Management & Monitoring:

• Web browser, CLI, Telnet, serial console, Windows utility, ABC-01
• SNMPv1/v2c/v3, LLDP, RMON, Syslog
• DHCP server/client, DHCP Option 66/67/82
• TFTP, BOOTP, NTP/SNTP, IEEE 1588v2 (software-based)

Protocol Support:

• EtherNet/IP
• Modbus TCP
• PROFINET compatible

Advanced Features:

• VLAN: Port-based, IEEE 802.1Q, GVRP
• QoS: IEEE 802.1p/1Q, TOS/DiffServ
• IGMP snooping v1/v2, GMRP
• Bandwidth management
• Automatic alerts via email and relay output

I/O Interface:

• 2 alarm contact outputs (1 A @ 24 VDC)
• 2 digital inputs
• State 1: +13 to +30 V
• State 0: -30 to +3 V
• Max input current: 8 mA

Ethernet Features:

• Auto negotiation
• Full/Half duplex
• Auto MDI/MDI-X

Operating Temperature:

• Standard model: 0 to 60 °C
• T models: -40 to +75 °C

Certifications:

• EN 62368-1, UL 60950-1, UL 508
• EN 55032/35, FCC Part 15B Class A
• IEC 61000-4-2/3/4/5/6/8
• ATEX, Class I Div. 2
• Maritime: DNV