CH9121 Serial Port Ethernet Network Module UART to RJ45 Converter
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The CH9121 Serial Port Ethernet Network Module enables seamless bidirectional transparent transmission between UART serial data and Ethernet packets. Supporting TCP Client, TCP Server, UDP Client, and UDP Server modes, it features built-in MAC and PHY, 10/100M auto-negotiation, and MDI/MDIX auto-crossover. Ideal for industrial networking, IoT devices, and remote serial port communication, this module simplifies network integration with DHCP, DNS, and Keep Alive support.
add_circle The Upside
- check Versatile working modes for various network applications
- check Easy configuration via serial port or hardware pins
- check Wide operating temperature range (-25°C to 85°C)
remove_circle The Downside
- close No built-in web interface for configuration
- close Requires external microcontroller for setup
- close Limited documentation for advanced features
Specifications & features
Key features
- check_circle Built-in MAC and PHY
- check_circle Support TCP Client, TCP Server, UDP Client, UDP Server modes
- check_circle 10/100M Ethernet with MDI/MDIX auto-conversion
- check_circle DHCP auto IP acquisition and DNS domain name access
- check_circle UART baud rate from 300bps to 921600bps
Specifications
Baud Rate
300bps~921600bps
Model
CH9121
Size
54 x 25 x 18mm
UART Level
DC 3.3V~5V
Tags
Other
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