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Serial-to-Ethernet Module WIZ550S2E + Interface board for RS-422/485

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Serial-to-Ethernet Module WIZ550S2E + Interface board for RS-422/485



  • Serial to Ethernet Module based on W5500 & Cortex-M0
  • RJ-45 mounted, Pin-header type module
  • Serial signals : TXD, RXD, RTS, CTS, GND
  • Support the configuration method of AT command & Configuration tool program
  • Configuration tool program operates on Windows, Linux & MAC OS
  • Support data communication using AT command : able to send data without re-configuring and re-boot of the module when changing the destination IP
  • Support the interface board for RS-232 and RS422/485
  • 10/100Mbps Ethernet & Max.230kbps serial speed
  • Support WIZ VSP (Virtual Serial Port) program
Hardware Specification
  • Dimension (mm) : 55(L) x 30 (W) x 23.49 (H)
  • Input Voltage : 3.3V
  • Max. Power Consumption : 179mA @ RS422 mode
  • Operation Temperature : -40~ 85℃
  • RoHS, SVHC Compliant

Pin Description

Ref No. Pin No. Symbol Type Description 
J1 13V3DPSupply DC+3.3V 
2RSVD1I/OReserved I/O 
3RSVD2I/OReserved I/O 
4nSYSRSTISystem reset input. Active Low. 
5nFACRSTIFactory reset. Active Low > 5sec. Changing the settings of the module to the default value 
6nHWTRIGIHardware Trigger input Active Low. 
7GNDPPower Ground 
8GNDPPower Ground 
Ref No. Pin No. Symbol Type Description 
J2 1GNDPPower Ground 
2NC-No connection 
3STATUS1OOutput for LED Display 
4STATUS2OOutput for LED Display 
5nCTSIClear To Send input for UART 
6nRTSORequest To Send output for UART. 
This pin also serves as the RS485 control. 
7RXDIReceiver input for UART 
8TXDOTransmitter output for UART 
93V3DPSupply DC+3.3V 

Interface board for WIZ550S2E-485/422

  • Line Driver SP3485EN
  • System Reset Switch
  • Factory Reset Switch
  • Hardware-Trigger Mode Switch
  • Status LEDs
  • DC-Jack (for +5V Input Power)


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Serial-to-Ethernet Module WIZ550S2E + Interface board for RS-422/485