Unique Features
1.Support Modbus RTU to Modbus TCP
2.Support Httpd Client
3.Support DHCP and DNS
4.Support Built-in Webpage
5.Support TCP/UDP/WEB to Serial
Serial Ethernet Module Download
User Manual: USR-TCP232-ED2
Evaluation Kit: USR-TCP232-EVB
Client Support Center: submit your ticket at h.usriot.com If you have technical problems about the product.
Serial Ethernet Module Introduction
This is a serial TTL to Ethernet module,used for data transparent transmission.USR-TCP232-ED2 is a triple serial ethernet module,which supports 3*TTL working at the same time.It is based on Cortex-M4 solution and its basic frequency is up to 120MHz. And the internal of the module integrates TCP/IP protocol stack.
Serial Ethernet Module Feature
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Cortex-M4 kernel,industrial working temperature range and TCPIP protocol stack.
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Auto-MDI/MDIX,RJ45 port with 10/100Mbps
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TCP Server,TCP Client,UDP Client,UDP Server and HTTPD Client work mode
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Multi-ports can work independently at the same time
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Can distinguish which serial port connects to the device via port number
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Support virtual serial port and provide corresponding software USR-VCOM
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Serial baud rate from 600bps to 1024K bps;Check bit of None,Odd,Even,Mark and Space
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DNS and DHCP supported
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Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS
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Built-in webpage;also can customize webpage for users
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Reload button,one key to restore default settings
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RJ45 with Link/Data indicator light,built-in isolation transformer and 2 KV electromagnetic isolation
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The global unique MAC address bought from IEEE (begin with D8-B0-4C);user can define MAC address
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Support upgrade firmware via network
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Support keepalive,rapidly detect dead links
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Support account and password,can be used to page login and network settings
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Support one channel Websocket,realize bidirectional transparent transmission bewteen webpage and serial 0
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Support Modbus RTU to Modbus TCP
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Support UDP broadcast function
Serial Ethernet Module Parameter
Parameter |
Value |
Input Voltage |
DC 3.3 / 5 V |
Input Current |
120mA @ 3.3V
120mA @ 5V |
Power |
<1W |
Certificate |
CE, FCC, ROHS |
Size |
44.45 x 31.75 x 15.4 mm |
Operating Temp. |
-40 ~ 85°C (industry) |
Storage Temp. |
-40 ~ 105°C, 5 ~ 95% RH |
Interface |
3* TTL UART |
Network Protocol |
IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP, Web socket, Httpd client |
Packing list |
USR-TCP232-ED2 *1 |
Serial Ethernet Module Image

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