General
Number of ports	5
Buffer size	768 kbit
MTBF	3.821.019 Stunden

The Moxa EDS-305-T is an unmanaged Industrial Ethernet-switch with five RJ45 ports, specifically developed for use in demanding industrial environments. It provides a reliable and cost-efficient networking solution designed for high environmental resistance and safety. The -T model variant features an extended operating temperature range, enabling use in extreme environments as defined in hazardous areas according to ATEX Zone 2, Class I Div. 2 and IECEx.

Applications
This switch is designed for industrial applications requiring a stable network connection under challenging conditions. These include, for example, production facilities, power supply networks, transportation systems, or marine systems. Certification according to UL 61010, ATEX and IECEx makes it suitable for use in locations with increased explosion risk. Maritime approval according to DNV extends the application range to ships and offshore installations.

Functions and Features in Detail
A central feature is the integrated relay output, which automatically triggers an alarm in case of power failure or port failure. This enables quick fault diagnosis and supports maintenance through early notification of malfunctions. Additionally, the switch includes broadcast storm protection, which enhances network stability and reduces the risk of network overloads. Automatic speed negotiation, half- or full-duplex mode, and automatic MDI/MDI-X ensure flexible and compatible connections to various network devices.

Technology Explained Simply
The switch operates using the store-and-forward method, in which data packets are fully received, checked, and then forwarded. This ensures high data integrity. The MAC address table with 2000 entries enables efficient packet forwarding within the network. The buffer size of 768 kbit supports data packet processing under high loads. Power supply is via an input range of 9.6 to 60 VDC, with integrated redundant inputs, reverse polarity and overcurrent protection. This increases reliability and protects the device from damage due to incorrect connection conditions.

Compatibility and Accessories
The EDS-305-T is designed for use in existing industrial networks and is compatible with standard Ethernet protocols. Mounting is done via DIN rail or optionally with wall mounting. The protection class IP30 protects the device against ingress of solid foreign objects larger than 2.5 mm, but not against water or dust. For operation in extreme temperatures, the -T model is specifically designed, with an operating temperature range of -40 to 75 °C. Storage is possible in the range of -40 to 85 °C, at a humidity of 5 to 95 % (non-condensing).

Mounting and Installation
Installation is simple via the DIN rail, which is typically found in industrial enclosures. Alternatively, the device can optionally be mounted on the wall. Mounting requires no special tools, and connection cables can be directly plugged into the RJ45 ports. The quick start guide included in the delivery supports setup.

Operational Advantages
The EDS-305-T offers high operational reliability through the integrated relay output and robust construction. The wide operating voltage range and redundant power supply increase availability. Certifications according to UL 61010, ATEX, IECEx and DNV enable use in hazardous and marine environments. The 5-year manufacturer's warranty underscores the reliability of the device. The MTBF (Mean Time Between Failures) is 3,821,019 hours, indicating high service life and low failure probability.

Scope of Delivery
The scope of delivery includes the EDS-305-T switch, two plastic protective caps for the RJ45 ports, a protective cap for the SC/ST port (model-dependent), a quick start guide, and a warranty card. These components support the safe installation and operation of the device.