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Data Sheet – User Manual – Other Documents – Certificates


Setup Software

Testing Software

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USR-K6 is a cost-effective TTL UART to Ethernet module with tiny size that can realize the bi-directional data transmission between TCP/UDP packets and the UART interface. The width of Ethernet module USR-K6 is the same as the ordinary RJ45, USR-K6 has been rigorously tested and has been successfully applied in Banks, highways, large corporate networks, and complex network environments.Integrating this module to your product can help you considerably lower development costs and faster time-to-market and enhance the competitive.




Input Voltage


Working Current


Net port

Rj45, 10/100mMbps

Serial port


Software Parameters

Network protocol


Access way to IP

Static IP, DHCP



User parameters

Software setting, webpage setting, AT command

Single transparent transmission

TCP Server/TCP client/UDP Server/UDP Client

Similar RFC2217


httpsd client


TCP server connection

Default 4 and maximum 16

Net buffer

Send:6Kbyte; receive:4Kbyte

Serial port buffer

Receive: 2048byte

Average transport delay


Set software

USR-VCOM, USR-Cloud, parameters setting software

Package mechanism

4 byte package time and 1024byte length





35.0x19.39x18.25 mm(L*W*H)

Operating Temp.


Storage temp


operating humidity

5%~95% RH

Storage humidity

5%~95% RH


Electrostatic bubble


Function structure


Industrial TTL to Ethernet Modules

USR-K6 is developed based on the solution of TI Cortex-M0, more efficient and reliable
Work tempt:-40~85℃ makes more stable.


Details of Embedded Ethernet Modules USR-K6


Five Work Modes

Embedded Ethernet module USR-K6 supports 5 work modes, configure simply and it can realize the transparent transmission of data.

TCP Client

It realizes the transparent transmission rabidly.

TCP Server

The number of clients can be connected is up to 16.

UDP Client

USR-K6 communicates with destination port of
destination IP.

UDP Server

The data received by serial port is sent to the
destination network which has been connected
last time automatically.

httpsd Client

It is convenient to transmit https data


Data Submitted Directly to Web Server

Support terminal device transmit data with webpage server directly, don not need to care about converting.
Configuring parameters simply, implement the serial port to https server data request quickly.


User-defined registration packet/ heartbeat packet

Registration packet sends to server to identify the device.
Heartbeat packet sends to server to determine the active state of the device.
Heartbeat packet sends to serial port terminal to collect data automatically
The content of registration package and heartbeat package and the heartbeat interval can change via commend.


Module will restart if timeout to keep the connection stable

If the net port or network haven’t receive the data for long time,
Embedded ethernet module USR-K6 will restart when timeout to avoid abnormal situations effecting communication.


Users parameters configuration

Supports webpage, AT commend, LAN configuring parameters, and provide PC configuring tool, easy to use.



Virtual COM

Solves the problem that PC software as serial port can
not communicate with networked devices

DNS Domain Name Resolution

DNS server address can be configure, server address
can be set, resolve the domain name rapidly and
get rid of the tedious memory,
not fear the change of IP.

Keep Alive

Support TCP keepalive, the abnormal
disconnection will be detected rapidly.

Synchronous Baud Rate

Configuring serial port baud and parameters
via network protocol. the baud of
and parameter synchronous with USR-K6 in time.



Networked Monitoring of Medical Machinery

TTL to Ethernet module USR-K6 can realize the data transmission between serial port and network quickly thus reducing the manpower on duty.
At the same time,multiple medical devices can be combined into local network to realize real-time information.


Industrial Automation Network Monitoring

Many traditional serial port devices does not have networking capability. USR-K6 module integrated TCP/IP protocol stack
can provide the solution of network communication between serial device to server via network
based on socket to improve the level of industrial automation.


Networked Monitoring of Medical Devices

The power data of the distribution box needs to be collected and reported in real time.
Tiny size module USR-K6 is industrial-grade design which can provide reliable and stable networking
functions and suitable for the integrated project requirements of power monitoring

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K Port TTL UART to Ethernet Converter Module (USR-K6)

  • Brand: usr iot
  • Product Code: USR-K6
  • Availability: Out Of Stock
  • Rs.950.00

Tags: K port, ttl, uart, ethernet, converter, module, USR-K6