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Small rectangular network converter with serial and Ethernet ports

Jinan USR IOT Technology Limited

Jinan USR IOT Technology Limited USR-N540 RS232 RS485 RS422 Ethernet Converter

SKU CH-NRPX-4E9CZ

Converts RS232, RS485 and RS422 serial signals to Ethernet TCP/IP connectivity

  • Product typeEngineering Development Tools
  • Multi-protocol serial conversion supported
  • RS232 RS485 RS422 interfaces included
  • Ethernet RJ45 TCP IP connectivity
  • Engineering development tool category

Industrial serial-to-Ethernet gateway

The USR-N540 converts RS232, RS485 and RS422 signals to TCP/IP over RJ45, letting legacy PLCs, meters and sensors join a modern network without rewriting firmware. Engineers commissioning SCADA or building-automation systems can bridge serial field devices to Ethernet infrastructure in a single compact module.

Multi-protocol flexibility for mixed installations

One unit handles three serial standards simultaneously, so a site running a mix of 232, 422 and 485 equipment needs only this converter instead of separate adapters. The 540 model’s combined interface reduces cabinet space and simplifies wiring for integrators managing heterogeneous serial networks.

How it compares

Measured against everything we stock in Engineering Workstations & Dev Kits, at today’s prices. Recalculated every night.

Price $126.99
Pricier than about 90% of the 170 comparable items (median $11.49).

Specifications

Product
Brand nameUSR
Model nameUSR-N540
Product typeEngineering Development Tools

Questions about this item

Will the RS-232, RS-485 or RS-422 serial ports on the USR-N540 require any periodic maintenance or replacement?

The serial ports are solid-state interfaces with no moving parts or consumable components, so they do not require scheduled maintenance or replacement under normal operation.

What is the first limit reached when the USR-N540 runs continuously at high data rates?

Sustained high throughput will hit the Ethernet bandwidth ceiling before the serial interfaces become a bottleneck.

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