DIN rail mountable Isolated USB to Serial (TTL) /RS232/RS485 converter

ISO-USB2SERIAL V2.1 is a industrial grade isolated USB to Serial (TTL) /RS232/RS485 converter with ESD protected serial interfaces. Ideal for protecting the sensitive USB inputs of the PC/Laptop from industrial high voltage transients that may couple into the RS485 /RS232 lines.

• The device comes with robust isolation barrier of about 5000 VRMS isolation ratings per UL 1577 (full details below).
• ISO-USB2SERIAL can be easily mounted on a 72mm DIN rail for easy installation.
• The device is USB powered and requires no external power supply.
• The device comes with both 3 PIN terminal block connectors and a DB9 male connector (RS232).
• The device is ideal for communicating with legacy as well as modern devices with RS485/RS232 interfaces.
• Works on Windows /Linux/Mac OS.
• The device is made in India

ISO-USB2SERIAL can work as

1. Isolated USB to Serial Converter with TTL level signals (5V)
2. Isolated USB to RS232 Converter
3. Isolated USB to RS485 Converter 

Block Diagram

Device Driver Software

• ISO-USB2SERIAL  uses FT232 chip from FTDI at the end.
• The VCP drivers for FTDI FT232RL can be downloaded from here.
• Most Linux versions already have the FT232 drivers in the kernel so the device will work without installing any drivers. 
   

User Manual

• Online user manual of isolated USB to Serial (TTL) /RS232/RS485 converter 
   

Features of ISO-USB2SERIAL

• FTDI FT232 based USB interface chip allowing stable and hassle free operation on all 3 major operating system families (Windows, Linux and Mac OS)
• ESD protection on USB input allowing long life and protection from static discharge.
• USB type B socket for easy operation in dusty environments
• Board can be mounted on a 72 mm DIN rail 
• Operating Temperature Range -40°C to +85°C 
   
• RS232 section
  • Meets or Exceeds TIA/RS-232-F and ITU Recommendation V.28 
  • Operates up to 250 kbit/s
  • DB9 Pin as well as 3 PIN terminal block connector for RS232 signals (RX,TX,GND)
  • ESD Protection for RS-232 Bus Pins
  • ±15-kV Human-Body Model (HBM)
  • ±8-kV IEC61000-4-2, Contact Discharge
  • ±15-kV IEC61000-4-2, Air-Gap Discharge 
     
• RS485 Section
  • Operates up to 2.5Mbps.
  • ±15kV ESD-Protected
  • The ESD structures on the RS485 side can  withstand high ESD in all states: normal operation, shutdown, and powered down. 
  • After an ESD event the device will keep working without latch up
  • RS485 output is available in a 3 PIN Terminal block Connector. 
     
• Fully isolated ground planes protecting your computer from unwanted transients.
• 
• Separate LED's for indicating TX and RX 
• LED's for displaying the status of the RS485 pins