General
Number of RJ45 ports	6
Number of fibre optic connections	2
Fibre optic connector	SC
Network recovery	< 20 ms
DHCP options	66/67/82
Buffer size	1 Mbit
MAC port blocking
LLDP
TFTP
RMON
Syslog

The Moxa EDS-508A-SS-SC-80-T is an industrial managed Ethernet switch designed for use in demanding environments such as production facilities, power supply systems, or marine applications. The device features six 10/100BaseT(X) RJ45 ports and two 100BaseFX single-mode fiber optic connections with SC connectors, enabling a reach of up to 80 km. The industrial networking technology is designed for high reliability and stability, with an operating temperature range of -40 to 75 °C allowing use in extreme environments.

Applications
The switch is suitable for industrial applications requiring uninterrupted communication and high availability. These include, for example, automation systems in manufacturing, power supply networks, traffic control systems, or marine installations. Certification according to DNV and ATEX (Class I Division 2) also makes it suitable for hazardous areas. The DIN rail mounting allows flexible installation in enclosures, with optional wall mounting available.

Functions and Equipment in Detail
The EDS-508A-SS-SC-80-T offers comprehensive functionality for professional use. The Turbo Ring and Turbo Chain technology enables network recovery within less than 20 ms, even with up to 250 connected switches. This is supplemented by classical redundancy protocols such as STP, RSTP, and MSTP to ensure high network security. Support for industrial protocols such as EtherNet/IP, Modbus TCP, and PROFINET compatibility makes the switch suitable for modern automation systems. Additional features such as VLAN, QoS, IGMP Snooping, and Port Trunking (LACP) support structured network management.

Technology Explained Simply
The fiber optic connections with SC connectors and single-mode technology are designed for long transmission distances, achieving a maximum reach of 80 km at 100BaseFX speed. The RJ45 ports support Auto-Negotiation, Full- and Half-Duplex mode, as well as Auto MDI/MDI-X, enabling flexible cabling without additional cable reconfiguration. The security functions include IEEE 802.1X, HTTPS/SSL, SSH, RADIUS, and TACACS+, ensuring secure access to the device. Additionally, MAC port blocking and Broadcast Storm Protection protect against network overloads.

Compatibility and Accessories
The switch is compatible with a variety of network protocols, including EtherNet/IP, Modbus TCP, and PROFINET. Support for VLANs (maximum 64) and a VLAN ID range from 1 to 4094 enables detailed network segmentation. The network management functions include web browser, CLI, Telnet, serial console, SNMPv1/v2c/v3, LLDP, DHCP Server/Client, TFTP, BOOTP, RMON, Syslog, SMTP, as well as time management via NTP/SNTP and IEEE 1588v2 (software-based). The serial console is available via RS-232 with a 10-pin RJ45 connector.

Mounting and Installation
The device is delivered in a metal housing with IP30 protection rating. Mounting is standard via DIN rail, with optional wall mounting available. Power supply is provided via two removable 6-pin terminal blocks, enabling redundant supply with 12/24/48 VDC. The operating voltage ranges from 9.6 to 60 VDC, with integrated overcurrent and reverse polarity protection. Power consumption is 0.30 A at 24 VDC.

Operational Advantages
The EDS-508A-SS-SC-80-T offers high operational reliability through redundant network protocols and robust hardware. The extended operating temperature of -40 to 75 °C enables use in extreme environments. Integrated alarm contacts (1 A @ 24 VDC) and two digital inputs (voltage range +13 to +30 V = 1; -30 to +3 V = 0; max. 8 mA) support integration into monitoring-relevant systems. The high MTBF of 1,043,909 hours (Telcordia, GB) underscores the reliability of the device. The warranty period is 5 years.

Certifications
The device complies with the requirements of standards EN 62368-1, UL 60950-1, UL 508, EN 55032/35, FCC Part 15B Class A, as well as EMC standards IEC 61000-4-2/3/4/5/6/8. Certifications according to ATEX (Class I Division 2) and DNV (marine certification) extend the application range to hazardous and marine environments.

DIP Switches
Configuration of redundancy functions is done via DIP switches, enabling settings for Turbo Ring, Master, Coupler, and Reserve. This simplifies setup in complex network topologies.

Switch Properties
The switch features a MAC table with 8K entries, supports up to 256 IGMP groups, and offers a buffer size of 1 Mbit. The 4 priority queues enable efficient QoS control. The maximum number of VLANs is 64, with a VLAN ID range from 1 to 4094.

Mechanical and Environmental Conditions
The housing is made of metal, with a protection rating of IP30. Dimensions are 80.2 × 135 × 105 mm, and weight is 1040 g. Storage temperature ranges from -40 to 85 °C, with humidity from 5 to 95 % (non-condensing).