The Moxa EDS-508A-SS-SC-T is a robust, industrial-grade managed Ethernet switch equipped with six 10/100BaseT(X) RJ45 ports and two 100BaseFX single-mode SC fiber ports, designed for demanding applications and wide temperature ranges (-40 to 75 °C).

Built with Moxa’s Turbo Ring and Turbo Chain technology, this switch ensures sub-20 millisecond recovery time across up to 250 switches, ideal for mission-critical systems. Redundancy is further enhanced through STP, RSTP, and MSTP support.

With features such as HTTPS, SSH, IEEE 802.1X, and access control via TACACS+ and RADIUS, the EDS-508A-SS-SC-T provides secure, reliable network operation. It supports industrial protocols like EtherNet/IP, Modbus TCP, and is PROFINET-compatible.

Technical Specifications (English):

Model:

• EDS-508A-SS-SC-T

Network Interfaces:

• 6 x 10/100BaseT(X) RJ45 (Auto-negotiation, Full/Half Duplex, Auto MDI/MDI-X)
• 2 x 100BaseFX SC single-mode fiber ports (up to 40 km)

Redundancy & Protocols:

• Turbo Ring, Turbo Chain (< 20 ms @ 250 switches)
• STP, RSTP, MSTP
• LACP (Port Trunking), Link Aggregation
• PROFINET-compatible
• EtherNet/IP, Modbus TCP

Security Features:

• IEEE 802.1X, HTTPS/SSL, SSH
• TACACS+, RADIUS, Port Lock
• Broadcast storm protection

Network Management:

• SNMPv1/v2c/v3, LLDP, RMON
• DHCP Server/Client, DHCP Option 66/67/82
• BOOTP, Telnet, TFTP, Syslog, SMTP
• Time synchronization: NTP/SNTP, IEEE 1588v2 (software-based)

Switch Properties:

• IGMP groups: 256
• MAC address table: 8K entries
• VLANs: up to 64
• VLAN ID range: 1–4094
• Packet buffer: 1 Mbit
• Priority queues: 4

I/O Interfaces:

• 2 alarm contacts (1 A @ 24 VDC)
• 2 digital inputs (+13 to +30 V = 1; -30 to +3 V = 0; max. 8 mA)

Console:

• RS-232, 10-pin RJ45 (115200, n, 8, 1)

DIP Switch Functions:

• Turbo Ring, Master, Coupler, Reserve

Power Supply:

• Dual 6-pin terminal blocks
• Input: 12/24/48 VDC (redundant)
• Operating range: 9.6 to 60 VDC
• Power consumption: 0.30 A @ 24 VDC
• Overload and reverse polarity protection supported

Mechanical & Environmental:

• Housing: Metal
• Protection class: IP30
• Dimensions: 80.2 × 135 × 105 mm
• Weight: 1040 g
• Mounting: DIN-rail, optional wall mount
• Operating temperature: -40 to 75 °C
• Storage temperature: -40 to 85 °C
• Humidity: 5 to 95% (non-condensing)

Certifications:

• Safety: EN 62368-1, UL 60950-1, UL 508
• EMC: EN 55032/35, FCC Part 15B, CISPR 32
• EMS: IEC 61000-4-2/3/4/5/6/8
• Hazardous: ATEX, Class I Division 2
• Maritime: DNV

MTBF & Warranty:

• MTBF: 1,043,909 hours (Telcordia, GB)
• Warranty: 5 years (www.moxa.com/warranty)