NEU3042GM-SFP Industrial Ethernet 4RJ45 2SFP L2 Managed Switch

NEU3042GM-SFP is a Gigabit L2 managed industrial Ethernet switch designed for reliable communication in harsh industrial environments. It provides four 10/100/1000Base-T RJ45 ports for copper access and two 1000Base-X SFP ports for fiber uplinks and long-distance transmission. The compact, IP40-rated, fanless metal enclosure supports installation in control cabinets and field enclosures where stable heat dissipation and long-term operation are required.

This managed industrial network switch supports common industrial network topologies, including point-to-point, star, tree, chain, and ring architectures. A self-healing ring mechanism enables fast recovery in under 50 ms after a single link failure, helping keep critical devices online. This is especially valuable for production lines, transportation subsystems, and distributed monitoring networks that cannot tolerate long interruptions.

NEU3042GM-SFP includes essential Layer 2 management functions to improve security, performance, and maintainability. VLAN tagging helps segment networks and reduce broadcast domain size. QoS priority settings support real-time traffic delivery for automation and control data. Port mirroring simplifies troubleshooting and traffic analysis, while link aggregation increases uplink bandwidth and provides additional redundancy. Broadcast storm suppression helps protect the network from abnormal traffic bursts.

Designed for industrial reliability, the switch features strong surge protection and EMC protection to support operation in electrically noisy sites. It supports redundant DC power input from 12V to 52V and includes reverse polarity protection to reduce the risk of downtime caused by wiring mistakes or power instability. The device is CE, FCC, RoHS certified and is backed by a 5-year warranty.

Typical applications include factory automation networks for PLC and HMI connectivity, industrial surveillance backbone switching, transportation control and monitoring systems, and industrial IoT aggregation nodes. Typical deployment uses the RJ45 ports for edge devices and the SFP ports for fiber uplink to an aggregation switch, or for forming a resilient ring between cabinets across a site. Datasheet and technical documentation support are available for evaluation, system design, and project bidding.