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Five small green circuit boards with RJ45 ports and pin headers

Vszerda

Vszerda Eport-E20 Serial-to-Ethernet Module 5pcs

SKU CH-5BTV-8PPF1

Five-pack of serial-to-Ethernet modules with Cortex-M3 MCU, FreeRTOS, 10/100 Base-T auto-negotiation, and -40 to +85 °C industrial temperature range

  • Real-time control via FreeRTOS on Cortex-M3 MCU
  • Secure data transfer with SSL, AES and DES encryption
  • Wide industrial temperature range from -40 to +85 °C
  • High-speed serial link up to 921600 bps over Ethernet
  • Quick setup through built-in HTTP web configuration page

Embedded Serial-to-Ethernet Module

The Vszerda Eport-E20 converts TTL serial signals to 10/100M Ethernet using a Cortex-M3 MCU with 128KB SRAM and 2MB Flash. FreeRTOS provides real-time operation for industrial automation, remote monitoring or legacy equipment integration. The module operates on 3.3V and includes five units for multi-node deployments.

Replaces Direct Serial Cabling

This module upgrades point-to-point serial links to networked TCP/IP, Telnet or Modbus TCP connections with data rates up to 921600 bps. The jump is worth it when devices must communicate across existing LAN infrastructure or when remote configuration via web browser and OTA firmware updates are required. SSL, AES and DES encryption secure the data path.

Fits 3.3V Logic Systems

A single RJ45 port with LED indicators connects to standard 10/100 Base-T networks with auto-negotiation. The board needs a regulated 3.3V supply and TTL-level serial signals from the host MCU. Web-based setup eliminates proprietary software, freeing development time for protocol logic rather than driver integration. Industrial temperature rating spans -40 to +85°C.

How it compares

Measured against everything we stock in Network Adapters & RJ45 Plugs, at today’s prices. Recalculated every night.

Price $67.99
Pricier than about 84% of the 1,221 comparable items (median $19.99).

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Specifications

No published specifications for this item yet.

Questions about this item

What physical space does the Eport-E20 module need for the RJ45 port and 3.3 V power pins?

The module has one RJ45 port with LED indicators and requires a 3.3 V supply; allow clearance for the Ethernet jack and header pins on your PCB or enclosure.

How do I configure the module after wiring the TTL serial lines and Ethernet cable?

Power the unit, connect to its IP address via a browser, and use the HTTP web page to set serial parameters, network mode and encryption; the step often missed is saving and rebooting to apply changes.

Will the flash memory or operating temperature range require any scheduled replacement?

The 2 MB flash and industrial-grade temperature rating of -40 to +85 °C are designed for continuous operation with no user-serviceable parts or scheduled replacement.

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