General
Ethernet ports	15
LWL port	1
Relay load	1 A @ 24 VDC
Auto-negotiation
Auto MDI/MDI-X

The Moxa EDS-316-M-ST-T is an unmanaged Industrial-Ethernet switch, specifically designed for use in demanding industrial environments. It features 15 RJ45 ports for 10/100BaseT(X) and one additional LWL port for 100BaseFX Multi-Mode with ST connector. Devices in the EDS-316 series offer an economical and reliable networking solution designed for stable connections in harsh operating environments. The integrated relay alarm function enables immediate notification in the event of a power failure or individual port failure, which is important for operation in critical applications.

Applications

The switch is suitable for industrial automation applications, particularly in environments with high mechanical, thermal, or electrical stress. It meets the requirements of ATEX Zone 2 and Class I Division 2, qualifying it for use in potentially explosive areas. Mounting can be done either on a DIN rail or in an enclosure, enabling flexible integration into existing infrastructures.

Functions and Features in Detail

The EDS-316-M-ST-T features 15 Ethernet ports compliant with the 10/100BaseT(X) standard, equipped with RJ45 connectors. These support Auto-Negotiation for speed adaptation, half- and full-duplex operation, as well as Auto MDI/MDI-X detection to simplify cabling. Additionally, one LWL port for 100BaseFX Multi-Mode with ST connector is integrated, suitable for connections over longer distances. The Broadcast Storm Protection safeguards the network against overloads caused by uncontrolled data transmissions.

Technology Explained Simply

The integrated relay alarm function enables external signaling in case of critical events such as power failure or port failure. The relay output has a rated load of 1 A at 24 VDC and can be used, for example, to activate an external alarm system or warning light. The devices undergo a 100% burn-in test to ensure reliability in industrial applications. The operating temperature range for this model is -40 to 75 °C, enabling use in extreme environments.

Compatibility and Accessories

The switch is part of the EDS-316 series and can be combined with other models in the series to ensure a consistent network architecture. Alternative models within the series include unmanaged switches with 16 10/100BaseT(X) ports. The LWL ports enable connection to other LWL end devices compliant with the 100BaseFX standard, with the ST connector providing a mechanically robust connection.

Mounting and Installation

Mounting is done either on a DIN rail or in an enclosure. The devices are designed for industrial environments and require no special installation tools. Cabling is done via standardized RJ45 and ST connectors, with Auto MDI/MDI-X detection simplifying the cabling process.

Operational Advantages

The EDS-316-M-ST-T offers high reliability due to the 100% burn-in test and robust construction. The relay alarm function enables proactive fault detection, increasing operational safety. Support for Auto-Negotiation and Auto MDI/MDI-X reduces installation complexity. Certifications according to FCC, UL, CE, ATEX Zone 2, and Class I Div. 2 ensure compliance with relevant safety and performance standards.

Certifications and Standards

The devices meet the requirements of ATEX Zone 2 and Class I Division 2, qualifying them for use in potentially explosive areas. Additionally, they are certified according to FCC, UL, and CE, confirming compliance with applicable electromagnetic compatibility and safety standards. The operating temperature range of -40 to 75 °C makes the switch suitable for extreme environments.