USB to Serial Adapter - Isolated


Model: MWE820B
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Here is a fully optically isolated true industrial grade USB to serial adapter. It has one RS232 port, one RS485 port and one RS422 port and it can transfer data through all 3 ports at the same time.

After the drivers are installed one virtual COM port will show up in your operating system's Device Manager, this COM port can be used as if it was a standard built-in COM port.

The serial processor chip for this adapter is a CP2102 from Silicon Labs. This processor is often used in high-end industrial devices for its high performance and reliability.

Optical isolation is achieved by high speed 6N137 isolation opto-couplers from Fairchild Semiconductors, which effectively protects your equipment and data against all types of high voltage spikes, surges, static electricity and ground loops.

This USB to serial adapter is powered from the USB bus so no external power supply is required. It can be installed on a standard DIN rail or mounted by screws, and used with point-to-point and point-to-multipoint networks which make it ideal for any industrial application.

Overall features
  • Three ports available: RS232, RS485 and RS422
  • Simultaneous data transfer for all 3 ports
  • All ports fully optically isolated
  • Compatible with all current operating systems
  • Baud rates up to 115.200bps
  • Port-powered, no power supply needed
  • USB cable included
USB cable included
usb extension cable

Part number MWE820B
Operating system
  • Windows 10 32/64, Windows 8 32/64-bit, Windows 7 32/64-bit, Server 2008 / R2, Vista 32/64-bit , XP, 2000, ME, 98
  • Linux 2.40 or higher
  • Mac OS 9, OS X
Processor Silicon Labs CP2102
Opto-coupler Fairchild 6N137
Power 5VDC provided by USB port
USB V.2.0 compliant with USB 1.1
Output 1 RS232 2-wire,
output voltage: ~8.9VDC
Output 2 RS422 4-wire Full Duplex,
output voltage: ~5.0VDC
Output 3 RS485 2 wire Half Duplex,
output voltage: ~5.0VDC
Baud rate 300 - 115.200bps
Optical Isolation 700V continuous and 3500V spike
ESD protection 15KV/ 600W/ms high voltage protection
Installation method 35mm standard DIN rail or screws
Serial interface Terminal block
Operating Temp. -40°C to 85°C
Typ. comm. range 3000M (4800bps), 2000M (9600bps)
Dimensions 102mm x 69mm x 33mm
Indication lights Power, Send and Receive
Warranty 2-year Limited Warranty

For alternative solutions please see our selection of other USB to serial adapters

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