Low Cost TTL Ethernet Module,Super network port module

USR-K2 is the cost-effective and multi-functional version of Super network Port TTL Ethernet module and easily offer serial to ethernet networking capability.

  • 3.3V Low Power
  • Enable web-based configuration of the device
  • Accepts max 16 clients connected in TCP Server
General Details

TTL Ethernet Module – Super Network Port Module

USR-K2 is the low-cost and multi-functional version of Super network Port TTL Ethernet module. It is an embedded serial networking module, whose function is to realize bidirectional transparent transmission between TTL and Ethernet.
User can directly process data interaction through network and device to realize remote data acquisition, remote control and management.

USR-K2 TTL Ethernet Module

SolutionCost-Effective, -25~75C
Keep-AliveDetect the inactive connection, rebuild connection automatically
Built-In WebpageConfigure parameters
DHCP+DNSDNS and DHCP automatically obtain an IP address
FirmwareUpgrade firmware via network
Client connectionSupport 1 to 16 clients to be connected in TCP server mode

Features of TTL Ethernet module

  • DHCP & DNS, automatically obtain an IP address
  • Set parameters through webpage
  • Upgrade firmware via network
  • Auto-MDI/MDIX, RJ45 port with 10/100Mbps
  • Serial port baud rate from 600 bps to 460.8 Kbps, Check bit of None, Odd, Even, Mark and Space
  • Work mode: TCP Server, TCP Client, UDP Client, UDP Server
  • Support virtual serial port and provide corresponding software USR-VCOM
  • Heartbeat package mechanism to ensure connection is reliable, put an end to dead link
  • Across the gateway, switches, routers
  • Can work in LAN, also can work in the Internet (external network)
  • Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS
  • Support customization

Application field of TTL Ethernet module

With USR-K2 you can embed intelligence into any electronic product for applications such as:

  • Industrial data transmission, industrial automation
  • security and protection monitoring, public security
  • Smart home, power control, environmental monitoring, intelligent agriculture
  • Door check on work attendance system, POS system, rice selling system
  • Building automation system, power monitoring, self-service banking system, telecom machine room monitoring

Structure of Embedded Super Ports

K2 Structure

Application of Embedded Super Ports

Kx application-

System Information
KernelM0 series
Port Number1
Interface Standard4 pin RJ45
Rate10/100 Mbps, MDI/MDIX, auto switch between cross and direct connection
Protection2KV electromagnetism isolation
Network ProtocolIP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP
BufferSend: 4K bytes
Receive: 2K bytes
Port Number1
Interface StandardTTL: pin type 3.3V
Data Bits5, 6, 7, 8
Stop Bit1, 2
Check BitNone, Even, Odd, Space, Mark
Baud RateTTL: 600 bps ~ 460.8 Kbps
Flow ControlNull
BufferReceive: 800 bytes
RS-485 Pull-up and Pull-Down ResistorNull, reserved 485 send-receive control pin
Virtual Serial (USR-VCOM)Windows 2000 or higher (32 bit/64 bit)
ConfigurationBuilt-in webpage, computer set-up software, serial command
Basic Parameter
Size33.02 x 19.01 x 19.15 (mm) (including clips)
Operating Temp.-25 ~ 75°C
Storage Temp.-40 ~ 105°C, 5 ~ 95% RH
Input VoltageDC 3.3V
Working Current136mA @ 3.3V
Warranty2 years










*Leave message:

Verify Code: captcha