USB Serial Converters / USB Serial Adapters
usb serial adapters Why CommFront Serial Converters
         
 

USB Serial Converters

 

USB SERIAL CONVERTERS / USB SERIAL ADAPTERS

  Isolated USB to RS232/485/422 Converter (Rack/Wall-Mount)  
 

USB to Single RS232 Adapter

 
 

USB to Dual RS232 Adapter

 
 

USB to RS485 Converter

 
 

USB to dual RS485 Converter

 
 

USB to RS422 Converter

 
 

USB to dual RS422 Converter

 
 

USB to TTL Converter

 
 

USB to dual TTL Converter

 
 

USB to TTL 3.3V Converter

 
 

USB to dual TTL 3.3V Converter

 
     
  Other products  
     
 

RS232 to RS485 Converters

 
 

RS232 to RS422 Converters

 
 

RS232 Isolators / Isolated Converters

 
 

RS232 RS485 RS422 to TTL Converters

 
 

RS232 RS485 RS422 Repeaters

 
 

Fiber Optic Converters

 
 

RS232 Serial Analyzer

 
 

 
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Legend

 
 
  -1: Port-powered
-2: Externally-powered
-3: Port-powered/Isolated
-4: Externally-powered
     /Isolated


Examples:
USB-232-1 (Port-powered)
USB-Serial-3 (Port-powered/Opto-isolated)
 
 

 
Testimonials

 
 
"You have a great product.  Plugged it in and it worked right out of the box.., on the first try. Thanks for saving my old serial port devices in a world that thinks newer is better.  I am glad there are people like you who provide the compatibility that the industry doesn't care about anymore."
-
Chester

"I am communicating with kWh (energy) meters that have the RS485 built in, the port-powered converter's auto-turnaround feature works really well for my application, and I don't have to change any configuration."
- Peter
 
 
 
  CommFront offers a range of high-quality, high-performance, commercial or industrial-grade, port-powered USB to RS232 RS485 RS422 TTL converter products. These industry-proven USB serial converter products are backed by our risk-free 30-day money-back guarantee and 5-year replacement warranty. They support Windows 7/Vista/XP, Mac and Linux, and come with built-in 120 Ohm terminators (RS485 / RS422) for system reliability and easy installation (see Application Note). Whether your environment is in the field, server room, factory, control room, or fire command center, "clean" or "noisy", these popular USB Serial converter products provide safe, reliable, simple, and cost-effective solutions for your data-conversion and device-protection applications.

* A "noisy" environment is an area surrounded by ground loops, transient surges, remote lightning and spikes, which could potentially harm your expensive equipment such as computers and data communication devices. The CommFront opto-isolated converters and isolators provide simple and effective ways to protect your devices from such potential harms.

   
   

Opto-Isolated USB to RS232/RS485/RS422 Serial Converter

Isolated USB to RS232 RS485 RS422 converter

The USB-Serial-3 is a rugged, true industrial-grade (-40ºF to 185ºF / -40ºC to 85ºC), optically-isolated USB to RS-232/485/422 converter, which can be used to convert any standard USB port into a three-wire RS-232 port, a two-wire RS485 port, or a four-wire RS422/RS485 port and vice versa. This product features opto-isolation circuitry, which effectively protects your USB devices from transient surges, ground loops, remote lightning and spikes.

The unit can be used to communicate with one loop of up to 128 units of RS485 or RS422 devices, and it comes with a built-in 120 Ohm terminator for system reliability and easy installation.

The unit uses the latest chipset from Silicon Labs and is fully compatible with Windows 7/Vista/XP/Server2003/2000 (32-bit), Windows 7/Vista (64-bit), Win CE (5.0, 6.0), Mac OSX, and Linux (2.6x, 2.4.36).

more info | datasheet FAQs |
product selection guide
testing info | declaration of conformity

 

Model: USB-Serial-3
$119.95
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Volume Discounts
Qty: 10+ $
107.96
Qty: 50+ $101.96
Other Qty: Ask

 
     
     
     
   

 

 

 
       

USB to RS232 Serial Adapter

   

USB to RS232 Converter
Model: USB-232-1
$29.95
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Volume Discounts
Qty: 10+ $
26.96
Qty: 200+ $25.46
Other Qty: Ask

The USB-232-1 is a port-powered USB to RS-232 serial adapter that can be used to convert any standard USB port (USB 2.0 - backward compatible) into a RS-232C port.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | user manual | FAQs |
product selection guide
testing info | declaration of conformity

USB to Dual RS232 Serial Converter

USB to dual RS232 Converter
Model: USB-232A-1
$39.95
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Volume Discounts
Qty: 10+ $
35.96
Qty: 50+ $33.96
Other Qty: Ask

The USB-232A-1 is a port-powered USB to dual RS-232 serial adapter that can be used to convert any standard USB port (USB 2.0 – backward compatible) into two RS-232C ports.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.


more info user manual | FAQs |
product selection guide
testing info | declaration of conformity

USB to RS485 Serial Adapter

USB to RS485 Converter
Model: USB-232-1+CVT-485-1
$62.95
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Volume Discounts
Qty: 10+ $56.66
Qty: 50+ $53.51
Other Qty: Ask

Combining the USB-232-1 (USB to Single RS232 Adapter) and CVT-485-1 (Port-powered RS232/RS485 converter) allows you to turn your USB port into an RS485 port that can be used to communicate with one loop of up to 128 units of RS485 devices, and it comes with a built-in 120 Ohm terminator for system reliability and easy installation.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

     

USB to Dual RS485 Serial Converter

USB to dual RS485 Converter
Model: USB-232A-1+2xCVT-485-1
$105.95
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Volume Discounts
Qty: 10+ $
95.36
Qty: 50+ $90.06
Other Qty: Ask

 

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of CVT-485-1 (Port-powered RS232/RS485 converter) allows you to turn your USB port into two RS485 ports, which can be used to communicate with up to two loops (each loop supports up to 128 nodes) of RS485 devices, and it comes with built-in 120 Ohm terminators for system reliability and easy installation.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

     

USB to RS422 Serial Converter

 

USB to RS422 Converter
Model: USB-231-1+CVT-485_422-1
$75.95
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Volume Discounts
Qty: 10+ $
68.36
Qty: 50+ $64.56
Other Qty: Ask

 

Combining the USB-232-1 (USB to Single RS232 Adapter) and CVT-485_422-1 (Port-powered RS232 to RS422/485 converter) allows you to turn your USB port into an RS422 port that can be used to communicate with one loop of up to 128 units of RS422/485 devices, and it comes with a built-in 120 Ohm terminator for system reliability and easy installation.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

       

USB to Dual RS422 Serial Converter

 

USB to dual RS422 Converter
Model: USB-232A-1+2xCVT-485_422-1
$131.95
Order Here

Volume Discounts
Qty: 10+ $118.7
6
Qty: 50+ $112.16
Other Qty: Ask

 

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of CVT-485_422-1 (Port-powered RS232 to RS422/485 converter) allows you to turn your USB port into two RS422 ports, which can be used to communicate with up to two loops (each loop supports up to 128 nodes) of RS422/485 devices, and it comes with built-in 120 Ohm terminators for system reliability and easy installation.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

       

USB to TTL 5V Serial Converter

 

USB to TTL Converter
Model: USB-232-1+TTL-232-1
$62.95
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Volume Discounts
Qty: 10+ $
56.66
Qty: 50+ $53.51
Other Qty: Ask

 

Combining the USB-232-1 (USB to Single RS232 Adapter) and TTL-232-1 (Port-powered RS232/TTL converter) allows you to convert USB to TTL/CMOS compatible levels and vice versa.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

   
 

USB to Dual TTL 5V Serial Converter

 

USB to dual TTL Converter
Model: USB-232A-1+2xTTL-232-1
$105.95
Order Here

Volume Discounts
Qty: 10+ $
95.36
Qty: 50+ $90.06
Other Qty: Ask

 

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of TTL-232-1 (Port-powered RS232/TTL converter) allows you to convert USB to two channels of TTL/CMOS compatible levels and vice versa.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

       
 

USB to TTL 3.3V Serial Converter

 

USB to TTL 3.3v Converter
Model: USB-232-1+TTL33-232-1
$62.95
Order Here

Volume Discounts
Qty: 10+ $56.66
Qty: 50+ $53.51
Other Qty: Ask

 

Combining the USB-232-1 (USB to Single RS232 Adapter) and TTL33-232-1 (Port-powered RS232/TTL 3.3V converter) allows you to convert USB to 3.3V TTL/CMOS compatible levels and vice versa.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

       
 

USB to Dual TTL 3.3V Serial Converter

 

USB to dual TTL3.3v Converter
Model: uSB-232A-1+2xTTL33-232-1
$105.95
Order Here

Volume Discounts
Qty: 10+ $
95.36
Qty: 50+ $90.06
Other Qty: Ask

 

Combining the USB-232A-1 (USB to Dual RS232 Adapter) and two units of TTL33-232-1 (Port-powered RS232/TTL 3.3V converter) allows you to convert USB to two channels of 3.3V TTL/CMOS compatible levels and vice versa.

The unit uses the latest FTDI chipset and is fully compatible with Windows 7/Vista/XP/Server2008/ 2003/2000/98 (32-bit), Windows 7/Vista/XP/ Server2008/2003 (64-bit), Win CE, Mac, and Linux.

more info | datasheet | FAQs |
product selection guide
testing info | declaration of conformity

   
       
 
 

Mission

   

Our Clients

 
 

CommFront's mission is to provide superior products in terms of safety, simplicity and reliability. Our goal is to provide the best-value products on the market. Accordingly, we continuously review and improve our products, prices, and services to meet or even exceed industry requirements.
 

   

CommFront products are widely used in control and automation systems and have been proven to be extremely reliable, below are some of our valued customers, just to name a few:

 

CommFront clients
 

 

 

           

 

CONTACT US:
http://www.CommFront.com/
http://www.232Analyzer.com/
Sales: Sales@CommFront.com
Support: Support@CommFront.com
USA: 1-800-490-8578
Singapore: +65-6296-8156

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