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Small metal box with RJ45 and two serial ports

Vszerda

Vszerda USR-TCP232-410s RS232 RS485 Serial Ethernet Adapter

SKU CH-ZKM1-A0TG8

Connects RS232 and RS485 serial devices to Ethernet with simultaneous dual-port operation

  • Dual RS232 and RS485 ports operate simultaneously
  • Cortex-M4 120Mhz CPU handles serial-to-Ethernet conversion
  • 10/100 Mbps Ethernet with auto MDI/MDIX switching
  • 5KV isolation plus 2KV anti-static and lightning protection
  • Industrial operating range from -40 to 85°C

Dual RS232 and RS485 to Ethernet Server

This Vszerda device server connects one RS232 port and one RS485 port to a 10/100 Mbps Ethernet network. A Cortex-M4 processor running at 120 MHz handles TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP and WebSocket protocols. Both serial interfaces operate simultaneously for industrial automation and legacy equipment integration.

Industrial temperature range and isolation

The unit operates from -40 to 85 °C with 1.5 kV electromagnetic isolation on the serial lines. Shell isolation, 2 kV anti-static protection and lightning protection are built in. Power consumption is low enough for the included 5 V 1 A supply, and there are no moving parts to generate noise.

Compact DIN-rail ready form factor

Two serial ports and one RJ45 jack fit in a small metal enclosure suited for cabinet mounting. The package includes a female-to-female serial cable and the 5 V power adapter. MDI/MDIX auto-crossover removes the need for a special Ethernet cable, and configuration is done through a web browser or virtual COM software.

Highlights

  • Dual RS232 and RS485 ports operate simultaneously
  • Cortex-M4 120Mhz CPU handles serial-to-Ethernet conversion
  • 10/100 Mbps Ethernet with auto MDI/MDIX switching
  • 5KV isolation plus 2KV anti-static and lightning protection
  • Industrial operating range from -40 to 85°C

Specifications

No published specifications for this item yet.

Questions about this item

How do I wire the RS-232 and RS-485 ports to the terminal blocks without crossing the TX and RX lines?

Connect the RS-232 device to the DB9 port using the supplied female-to-female cable, then wire the RS-485 device to the two-pin terminal block observing A/B polarity; the Cortex-M4 120MHz CPU handles both ports simultaneously.

What ongoing maintenance does the 1.5 kV isolation barrier require?

The isolation is solid-state and needs no periodic service; inspect the 5 V 1 A power supply and RJ45 cable for damage after any nearby lightning event.

At what sustained throughput does the 10/100 Mbps Ethernet link become the bottleneck?

The 100 Mbps ceiling is reached first; combined serial traffic above roughly 230.4 kbps on RS-232 or 1 Mbps on RS-485 will queue at the network interface.

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