USB to RS422 / RS485 Converter, Economy


    Model: XS850

£15.25

 Sold Out 

Low-cost standard USB to RS422 / RS485 adapter suitable mainly for older operating systems and applications. This is a basic and cost-effective converter that lets you connect a RS422 or RS485 device directly to your computer's USB port, converting USB signals to half-duplex RS485 signals and full-duplex RS422 signals and vice versa.
This USB to RS422 / RS485 adapter is powered from the USB port so no external power supply is needed. The RS422 / RS485 end is a standard 9-pin D-sub connector with a optional screw terminal board included for easy connection of cables or single wires.
Automatic send data control is enabled by default so no external flow or handshake control is needed.

Not Recommended for any Applications

We do not recommend using this converter under any circumstances unless your application specifically requires a converter with the Prolific PL-2303 processor chip.
The Prolific processor is a low-cost solution with several known problems, so the only reason we sell this converter is because a few of our customers require this converter due to outdated or other application specific reasons.

Drivers

Drivers for this converter are compatible with Windows 98Se, ME, 2000, XP, Server 2003, Mac and older versions of Linux but has only limited compatibility with Windows 7 and Vista. It is NOT compatible with Windows 8 and 8.1.

We highly recommend our Pro USB to RS422 / RS485 converter which is optimized and fully compatible with Windows 7 Windows 8 and 8.1 as a replacement for this converter.

Overall features
  • Best for only older operating systems
  • Low-cost solution
  • USB port powered converter
  • Terminal board included with each converter
  • Hexagonal nut stand-offs for connecting thumbscrews
  • Processor: Prolific PL2303HX
Resources


Useful optional accessories
(not included)

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SPECIFICATIONS
Part number XS850
Operating system
  • Windows 98, ME, 2000, XP32, Server 2003
    Since this is a low-cost adapter it has limited compatibility and is not recommended for Windows Vista, Windows 7 and it will not work with Windows 8
  • Mac OS X 8, 9, 10, 10.6
  • Linux
  • Windows CE 5.0
Processor Prolific PL2303HX
RS485 / RS422 Interface DB9 Male / included screw terminal header
USB interface Standard Type A Male
Indication LEDs No
Ports 1-port
Signals - RS485: D+, D-, GND
- RS422: TX+, RX-, TX+, RX-, GND
Power on pin 9 No
Baud rate 300bps to 115200bps
Parity None, Odd, Even, Mark, Space
Data Bits 5, 6, 7 or 8
Stop Bits One, one and a half, or two stop bits
TX / RX buffer size Configurable 512-byte bi-directional data buffer
- 256-byte outbound buffer and 256-byte inbound buffer; or
- 128-byte outbound buffer and 384-byte inbound buffer
Adjustable USB transfer sizes for TX and RX From 64 bytes to 4096 bytes
Flow Control None, Xon/Xoff, Hardware
COM port accessible by Included virtual COM port drivers
Electrostatic (ESD) protection 600W surge protection, 15KV static electricity protection
Current draw less than 100mA
Interface compliance USB1.1,2.0,3.0, EIA/TIA RS-232
Regulatory compliance FCC, CE and RoHS
Working temp -20°C to 60°C
Warranty 1 year limited warranty

For alternative USB to serial RS485 and RS422 solutions please see our full selection of USB to Serial RS485 converters

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