Isolated USB to RS485 422 232 TTL interface Industrial grade lightning protection USB to serial converter 4 in 1

Chapter One Product Introduction

• 
  Overview
  

Industrial control personnel generally communicate with some peripheral devices through the computer serial port, but with the continuous development of computer technology, the serial port gradually disappears from the computer, which brings great distress to the industrial control personnel. How can I provide a A stable and reliable serial port is very necessary, and this product is designed to solve this solution.

USBThe serial-to-serial chip adopts the most stable USB-to-232 chip FT232R, which is currently recognized as the most stable. The signal output by FT232R is isolated by high-speed magnetic coupling and outputs 4 signals, which are RS485, RS422, RS232 and Uart-TTL 4 signals, USB and output signals. It is electrically isolated, thus ensuring the safe and reliable work of communication.

It is widely used in R&D communication debugging, industrial automation control system, attendance machine,ledDisplay communication data,ICCard charging system, monitoring data reading and writing and PTZ control, one-card access control system, parking lot system, automatic banking system, bus toll system, canteen selling system, highway toll station system, etc.

• 
  Features
  
  
  
  1. 
     USBChip: The most stable USB to 232 chip FT232R is currently recognized
     
  
  
  2. 
     USBInterface safety: USB power supply uses over-current protection devices to ensure the safety of the USB interface.
     
  
  
  3. 
     Communication circuit power isolation: DCDC isolation power module is used
     
  
  
  4. 
     Communication signal isolation: use high-speed magnetic coupling chip to isolate communication signals
     
  
  
  5. 
     Communication output signal protection: RS485, RS422, RS232 communication signal output interface adopts double protection of overvoltage and overcurrent.
     
  
  
  6. 
     Signal indication: LED power indication, data sending indication and receiving indication, convenient to observe the communication status.
     
  
  
  
  


• 
  Technical index
  

• 
  Appearance
  

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• 
  Module indicator function description
  
  
  
  1. 
     POWPower working status indication
     
  
  
  2. 
     TXD: Communication sending status indication
     
  
  
  3. 
     RXD:Communication receiving status indication
     
  
  
  
  


• 
  Terminal definition
  

• 
  Typical application wiring diagram
  

• 
  Principle block diagram
  

Chapter 2 Product Precautions and Warranty

• 
  Precautions
  

1. 
   Please read this manual when using it. If you have any questions, please contact me so that you can solve the problem quickly.
   


2. 
   When disassembling the module to set jumpers, please do not touch the circuit board components with your hands, so as not to damage the integrated circuits on the circuit board by static electricity on your hands.
   

• 
  Warranty
  

1. 
   Non-artificial damage, abnormality during normal working conditions, can be guaranteed for one year free of charge.
   


2. 
   Paid repair scope
   
   
   
   1. 
      The input power is too high and the power is burned out
      
   
   
   2. 
      The working conditions are too bad, such as excessive humidity, excessive dust, and excessive power input jumps.
      
   
   
   3. 
      The module channel input exceeds the input range.
      
   
   
   4. 
      The module is subject to lightning strikes, high voltages, and high currents.
      
   
   
   5. 
      Man-made damage to the casing, switches, circuit boards, etc.