Sku: ATC-850

Availability: Many In Stock
Sku: ATC-850
USB Connectivity
Elecom Electronics Supply
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Industrial USB to Serial RS232 / 422 / 485 Adapter



The ATC-850 is a cost effective industrial high speed RS232 to USB adapter with support for RS422/RS485 to USB as well. The ATC-850 uses a DB9 male connector for RS232 and supports baud rates from 300 to 460K baud. The terminal block connector is used for the RS422 and RS485 interfaces and supports baud rates from 300 to 921K baud. The USB interface is 1.1 and 2.0 compatible and uses the FTDI high speed serial to USB chip.


When connected to a PC USB port the ATC-850 module is automatically detected and is installed as a native COM port which is compatible with any existing serial communication application. They have 600W protect between the USB port and RS-232 /422/485 protects. The ATC-850 has a 384 byte receive buffer with an adjustable timeout and a 128 byte transmit buffer with auto-transmit control. The ATC-850 makes it easier to add RS485 devices to your system with easy plug-and-play.



Using FTDI Chipset for industrial area

Computer interface: USB 1.1 2.0 Plug and Play

Operational system virtual serial port driver.

Supports Windows 98/ME/XP/2000/CE/Vista, MAC & Linux 2.4.20 or superior.




Compliance: USB 1.0/1.1 compliant, USB 2.0 compatible

Speed: 12 Mbps (Full-Speed USB)


Serial Interface

Field Interfaces:RS-232,RS-422,RS-485 Half Duplex

Automatic flow control for RS485 Half Duplex.

Maximum number of devices in the RS485 network: Half Duplex to 32 devices

Maximum RS-485 cable length : 1200 m 


RS-232 connector:DB9 male

RS-422/485 connector: 6-bit terminal socket


Serial Line Protection

Isolation: Isolation voltage 3500VRMS 500VDC sequence

USB port RS-232/422/485 bus protection: 600W.


Transmission rate: RS232 from 300 bps to 460.8Kbps. RS485 from 300 bps to 921.6Kbps.

Power: from the USB port. Consumption: <200 mA.

Driver Support

Operating Systems: Windows (2000, XP x86/x64, 2003 x86/x64,

Vista x86/x64, Win7 x86/x64),WinCE 5.0, Linux 2.6 x86/x64, MAC OS


Physical Characteristics

Metal case size: 105x85 x27 mm

Environmental Limits

Operating environment: -25 to 70°C, 10 to 90% relative humidity, non-condensing


Data sheet:         ATC-850.pdf

User Manual:      ATC-850 UM.pdf

Win7 Driver:        Win7



ATC-850 - Industrial USB to Serial RS232 / 422 / 485 Adapter

Sku: ATC-850

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