06/01/2026 11:37 p.m.
https://cablematic.com/en/products/pcba-module-e45-rs485-rs232-serial-to-ethernet-tcpip-model-usr-tcp232-4-UK031/
https://cablematic.com/en/products/pcba-module-e45-rs485-rs232-serial-to-ethernet-tcpip-model-usr-tcp232-4-UK031/
PCBA module E45 RS485 RS232 serial to Ethernet TCP/IP model USR-TCP232-4
REF: UK031
Specifications
- New Cortex-M3 core.
- LWIP optimization protocols.
- Auto-MDI/MIDX function.
- Support of TCP server, TCP client, UDP, UDP server, HTTPD.
- Virtual serial port support, with the appropriate software.
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More info
PVP
€28.52
Price including VAT:
€28.52
PVD
€24.06
PVP: Retail price.
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PVP: Sale price to distributors.
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warranty
returns
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We will notify you when it is back in stock.
Specifications
- New Cortex-M3 core.
- LWIP optimization protocols.
- Auto-MDI/MIDX function.
- Support of TCP server, TCP client, UDP, UDP server, HTTPD.
- Virtual serial port support, with the appropriate software.
More info
USR-TCP232-4 is an RS232 RS232 to RJ45 TCP/IP ethernet converter module. Support firmware update through network, IP support and domain name, support up to 4 link from client when acting as TCP server, send and receive data with the ID. Possibility of modifying the MAC address, and the port of the HTTP server. Keepalive support. It has been widely used in the IOT field. Low cost and high stability module.
Specifications
- New Cortex-M3 core.
- LWIP optimization protocols.
- Auto-MDI/MIDX function.
- Support of TCP server, TCP client, UDP, UDP server, HTTPD.
- Virtual serial port support, with the appropriate software.
- Serial port speed: 110 bps at 1,024,000 bps (COM0 only 256,000 bps max).
- DHCP support automatically accesses IP.
- You can check the installation within the network through the UDP broadcast protocol.
- Protocol for VIP clients.
- PC TCP/IP programming through VB, C ++, Delphi, Android, iOS.
- Configuration of parameters through WEB.
- Communication through UDP.
- Push button of default configuration.
- Isolation 2 KV.
- Firmware update support throughs network.
- Support for IP operations and domains at the same time.
- Supports up to 4 link from client when acting as TCP server.
- The MAC address can be modified.
- You can modify the HTTP server port for the integrated HTTP server module.
- Keepalive support.
- Gross Weight: 50 g
- Product size (width x depth x height): 10.5 x 5.2 x 1.8 cm
- Number of packages: 1
- Packages size: 10.5 x 5.2 x 1.8 cm
Technical terms
- Android - IOS
- Categories network cables
- DHCP
- Communication Series
- RS232
- RS485
- RJ45
Android - IOS
Android and iOS are the two leading mobile operating systems powering smartphones and tablets worldwide.
| Feature | Android | iOS |
|---|---|---|
| Developer | Apple Inc. |
Technical Detail
Android is based on an open-source model (AOSP), while iOS is a closed-source proprietary system.
Key Advantages
Customization and hardware variety for Android; ecosystem stability and security for iOS.
Note: These platforms define the modern mobile development landscape.


