Serial RS232 / RS422 / RS485 to Ethernet Network Module ezTCP CSE-M73G

  • Sale
  • Regular price $69.00
  • Will not ship until

The ezTCP CSE-M73G is an embedded serial to Ethernet module with a built-in RJ45 connector for the Ethernet interface. Embedded with an optimized TCP/IP stack, it helps you simplify its implementation since it comes equipped with an RJ45 connector and serial port interface with RS232, RS422, and RS485.

The CSE-M73G is a new alternative for the CSE-M73 and CSE-M73A.

The CSE-M73G is especially suitable for Multi Monitoring, Solar Energy Management Systems, etc.


  • 1 x RS232/RS422/RS485, or 3.3V (5V tolerant input)
  • 10/100Mbps Ethernet
  • RJ45 connector embedded
  • Compact module type (64.4mm x 40mm x 17mm)
  • Multi-Monitoring (maximum 8 channels)
  • Separator settings for packet fragmentation
  • Configuration via ezManager


  • Serial Interface
    • RS232 - RXD, TXD, RTS, CTS, GND
      3.3V level with 5V tolerant input - RXD, TXD, RTS, CTS, GND
      RS422 - TX+, TX-, RX+, RX-, GND
      RS485 - TRX+, TRX- , GND
    • Connector: 1 X 6 2.54mm pitch pin header
  • Serial Port Property
    • Baud Rate: 300 bps ~ 230,400 bps
    • Data Bits: 8bits, 7bits with parity
    • Parity: None, Even, Odd, Mark, Space
    • Stop Bit: 1, 2 (A single idle bit is automatically added to every stop bit by the MCU function.)
    • Flow Control:  None, RTS/CTS, Xon/Xoff
  • Network Interface
    • 10Base-T/100Base-TX Ethernet (RJ45)
    • Ethernet Speed Auto Sense
    • 1:1 or Cross-over Cable Auto Sense
  • Software Functions
    • Protocols
      • IPv4/IPv6 dual stack, ICMPv6/TCPv6/UDPv6,
        DNS, DDNS, Telnet COM Port Control Option(RFC 2217)
    • Security
      • TLS v1.2
      • IP & MAC filtering - Restrict host or network
      • Password for Configuring
    • Communication Mode
      • TCP Server (T2S)
      • TCP Client (COD)
      • TCP Server/Client with AT Command (ATC) - Patent
      • UDP Mode (U2S)
    • Additional Functions
      • Multi-monitoring(Max. 8 TCP connections simultaneously)
      • TCP Server/Client Mode
      • Sending MAC address Option
  • Indicators (LEDs)
    • Power: Red
    • LAN Link/LAN RXD: Green
    • Status/LAN TXD: Yellow
  • Management:
    • ezManager: Configuration and Monitoring Tool through Network and Serial
    • Telnet: Telnet Login
    • AT Command: Configuring in ATC mode - Patent
  • Supplementary Software
    • ezManager: Configuration Tool for Windows
    • ezVSP: Serial to Network Virtual Driver for Windows
    • ezTERM: Simple TCP/IP Communication Test Tool
  • Dimensions
    • Size: 64.4mm x 40mm x 17mm (2.54in x 1.57in x 0.67in)
    • Weight: 17 Grams (0.6 Ounces)
  • Operating Environment
    • Input Voltage: 5VDC
    • Current Consumption: 95mA typical
    • Operating Temperature: -40C ~ +85C
    • Storage Temperature: -40C ~ +85C

* The above information is subject to change. Envistia Mall and Sollae Systems are not responsible for any changes.

 Package includes:

1X CSE-M73G ezTCP Serial Ethernet Module

Delivery of evaluation quantities is stock to 2 weeks, if the item is out of stock, please contact us for availability. 

Documentation & Resources:

EZTCP CSE-M73G Serial Ethernet Module Product Page

EZTCP Utility Downloads


CSE-M73 Serial Ethernet Module