https://wiki.jw-tech.eu/index.php?action=history&feed=atom&title=WSAL24276_%E2%80%93_UART_TO_ETH_%28B%29%2FenWSAL24276 – UART TO ETH (B)/en - Versionsgeschichte2026-10-23T23:18:51ZVersionsgeschichte dieser Seite in JW Tech WikiMediaWiki 1.43.9https://wiki.jw-tech.eu/index.php?title=WSAL24276_%E2%80%93_UART_TO_ETH_(B)/en&diff=2807&oldid=prevJWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex2026-09-06T07:56:44Z<p>Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex</p>
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'''Documentation notice:''' This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.<br />
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== Summary ==<br />
The UART TO ETH (B) is a compact module that forwards TTL UART data bidirectionally and transparently between serial interfaces and Ethernet. It can serve as a serial server, Modbus gateway, or IoT gateway for industrial environments.<br />
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== Related products at JW Tech ==<br />
* [https://shop.jw-tech.eu/p/WSAL24276 WSAL24276 – TTL UART to Ethernet Mini Module, Castellated Holes With Immersion Gold Design, Highly Integrated Packaging]<br />
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== Technical overview ==<br />
* Serial specification: baud rates from 300 to 115200 bps, data bits 5–9, selectable parity (none, odd, even, mark, space), hardware flow control supported.<br />
* Network protocols: supports TCP server, TCP client, UDP, and UDP multicast; up to 30 simultaneous TCP connections in server mode and 7 destination IPs in client mode.<br />
* Pinout includes 5V/3.3V power, RST (active-low, minimum 100 ns pulse), TXD/RXD (3.3 V TTL), DEF (hold low &gt;1 s to reset to default IP 192.168.1.254), RUN indicator, EN (RS485 transmit enable), RTS/CTS for flow control, and LINK/ACT/LINK2 status indicators.<br />
* Configuration is done via web browser or the provided DLL development library; DHCP and DNS are supported.<br />
* Advanced functions include Modbus RTU-to-TCP gateway, MQTT gateway, JSON-to-Modbus/IEC-645 conversion, NTP time synchronization, user-defined heartbeat/registration packets, and HTTP GET/POST for data submission.<br />
* Operating temperature range is -40 °C to 85 °C; humidity range is 5 % to 95 % relative humidity.<br />
* Module dimensions are 34 × 23 × 11.5 mm; it features castellated holes with immersion gold for direct PCB integration.<br />
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== Notes and version constraints ==<br />
* The exact default IP after reset (192.168.1.254) applies only to this model; other variants may use different values.<br />
* PoE connection requires a PoE splitter to separate power and data; connecting directly to a PoE switch without isolation can damage the module.<br />
* For Modbus operation, function code compatibility with the connected device must be verified; the correct baud rate should be read from the device.<br />
* Password change via the web interface: after changing, login is possible only with the new password.<br />
* Some steps depend on the firmware version; consult the latest manufacturer documentation when uncertain.<br />
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== Source and revision record ==<br />
* [https://www.waveshare.com/wiki/UART_TO_ETH_(B) UART TO ETH (B) - Waveshare Wiki]<br />
* Source revision: 96473<br />
* Captured: 2026-09-04T04:06:49+00:00<br />
* SHA-256: <code>ae44f9e6343b941f4077bb6bc4ae72e9e3ed0c5db4cd26ec0c7252e68489ab53</code></div>JWTechPublisher