The EDS-518A-T from Moxa is a high-performance managed Gigabit Ethernet switch designed for industrial automation networks that demand robust performance and environmental endurance. It features 16 Fast Ethernet ports (10/100BaseT(X)) and two combo ports that support either 10/100/1000BaseT(X) or 1000BaseSFP modules, enabling both copper and fiber uplinks.

Engineered for extreme operating environments with a temperature range from -40 to 75°C, this switch delivers high availability through support for Turbo Ring, Turbo Chain, STP, RSTP, and MSTP redundancy protocols. Security is also a key highlight with HTTPS, SSH, RADIUS, TACACS+, and MAC-based port locking. Management is easy and flexible via web interface, CLI, Telnet, SNMPv1/v2c/v3, and support for industrial protocols such as Modbus TCP and EtherNet/IP.

Technical Specifications:

Ports:

• 16 × 10/100BaseT(X) RJ45
• 2 × Combo ports (10/100/1000BaseT(X) or 1000BaseSFP)

I/O Interfaces:

• 1 × Alarm relay (1 A @ 24 VDC)
• 1 × Digital input (+13 to +30 V = High, -30 to +3 V = Low, max 8 mA)

Networking Standards:

• IEEE 802.3/3u/3ab/3z
• IEEE 802.1D/w/s (STP, RSTP, MSTP)
• IEEE 802.1Q/p (VLAN & QoS), 802.3x (Flow Control), 802.3ad (LACP)

Software Features:

• VLAN: 802.1Q, port-based, GVRP, GMRP
• Multicast: IGMP v1/v2 snooping
• Redundancy: Turbo Ring, Turbo Chain, STP, RSTP, MSTP, LACP
• Industrial Protocols: EtherNet/IP, Modbus TCP
• Management: SNMPv1/v2c/v3, Telnet, Web GUI, TFTP, Syslog, LLDP, DHCP Options 66/67/82
• Security: HTTPS/SSL, SSH, TACACS+, RADIUS, Port Lock, Broadcast storm protection
• Time Sync: NTP Server/Client, SNTP

Switch Properties:

• IGMP Groups: 256
• MAC Table Size: 8K
• Max VLANs: 64
• VLAN ID Range: 1–4094
• Packet Buffer Size: 2 Mbit
• Priority Queues: 4

Interfaces:

• Console Port: RS-232 (10-pin RJ45, 115200 8N1)
• DIP Switches: Turbo Ring, Master, Coupler, Reserve
• LEDs: PWR1, PWR2, FAULT, TP/Fiber/Gigabit port, MSTR, CPLR

Power Supply:

• Input Voltage: 12 to 45 VDC (nominal 24 VDC)
• Input Current: 0.44 A @ 24 VDC
• Redundant inputs with overload and reverse polarity protection

Mechanical Design:

• Housing: Metal, IP30
• Dimensions: 94 × 135 × 142.7 mm
• Weight: 1630 g
• Mounting: DIN rail or optional wall mount

Environmental Limits:

• Operating Temperature: -40 to 75 °C
• Storage Temperature: -40 to 85 °C
• Humidity: 5–95% (non-condensing)

Certifications:

• Safety: EN 62368-1, UL 60950-1, UL 508
• EMC: EN 55032/35, FCC Part 15B
• Environmental: ATEX, DNV, NK, LR, EN 50121-4
• Shock/Vibration/Drop: IEC 60068-2-6/27/31

MTBF:

• 250,966 hours (Telcordia, GB standard)

Warranty:

• 5-year manufacturer warranty