Serial RS232 / RS422 / RS485 to Ethernet Network Module ezTCP CSE-M73A

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  • Regular price $69.00
  • 9 available

The ezTCP CSE-M73A from Sollae Systems is an embedded serial to Ethernet module. Embedded with an optimized TCP/IP stack, this module is equipped with an Ethernet RJ45 connector and a serial port interfaced with RS232, RS422, and RS485. The CSE-M73A provides conversion functions to remotely control and manage serial devices over Ethernet.

The CSE-M73A is especially suitable for Multi Monitoring, Solar Energy Management Systems, etc.


  • 1 x RS232/RS422/RS485
  • 10/100Mbps Ethernet
  • RJ45 connector embedded
  • Compact module type (64.4mm x 40mm x 17mm)
  • Multi-Monitoring (maximum 8 channels)
  • SSL (Secure Sockets Layer)
  • Separator settings for packet fragmentation
  • Flexible configuration and network communication by 'AT Commands' (patent)


  • Serial Interface
    • RS232 - RXD, TXD, CTS, RTS, 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: 5, 6, 7, 8 bits
    • Parity: None, Even, Odd, Mark, Space
    • Stop Bit: 1, 1.5, 2
  • Network Interface
    • 10Base-T/100Base-TX Ethernet (RJ45)
    • Ethernet Speed Auto Sense
    • 1:1 or Cross-over Cable Auto Sense
  • Software Functions
    • Protocols
      • TCP, UDP, IP, ICMP, ARP, Ethernet, TELNET
        Telnet COM Port Control Option (RFC 2217)
    • Security
      • SSL(Secure Socket Layer)
      • SSH (Secure Shell)
      • 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)
      • Remote Debug Function
      • 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: 19 Grams (0.7 Ounces)
  • Operating Environment
    • Input Voltage: 5VDC
    • Current Consumption: 200mA typical
    • Operating Temperature: 0C ~ +55C
    • Storage Temperature: -45C ~ +85C

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

 Package includes:

1X CSE-M73A 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-M73A Serial Ethernet Module Product Page

EZTCP Utility Downloads


CSE-M73A ezTCP Serial Ethernet Module Product Video