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RS232 - RS485 / RS422, Port-Powered

  • Model: XS203
  • In Stock


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RS2332 to RS485 advertisement

This combo industrial strength RS232 to RS-485 / RS422 converter is a port-powered simple and reliable solution for most standard commercial and industrial communications needs. It converts RS232 signals to half-duplex RS-485 balanced differential and RS-422 full duplex signals.

This particular RS232 to RS-485 / RS-422 converter uses an internal amplifier to gain power from the RS232 signals (RTS, DTR, TXD) without initializing the RS232 interface. In case the RS232 port is incapable of supplying sufficient power an external power supply can easily be connected to the converters terminal header.

Automatic Send Data Control is enabled which means no software drivers are needed. Zero-delay transfer and advanced I/O control automatically controls data flow directions without any hand-shake signals needed.

Built-in auto-sense automatically selects RS-485 or RS-422 mode depending on the connected signal, no jumpers are needed, simply connect the wires to the terminals you need.

Overall features
  • Port-powered RS232 to RS485 / RS422 converter
  • No external power supply required
  • Fail-safe bias resistors
  • RS-485 / RS-422 Auto-sense, no jumpers needed
  • Plug and play, no drivers needed
  • Static and surge protected converter
  • Optional external power supply
  • Automatic Send Data Control
  • Asynchronous, half-duplex and full duplex

Useful optional accessories
(not included)

Null modem adapter
Null modem adapter

DB9 to RJ45 adapter
DB9 - RJ45 adapter

DB9 gender changer
Gender Changer

5V power supply
5V Power supply
Model number XS203
Baud rate 300 - 115200bps
Power Port-powered from RS232 (RTS, DTR, TXD). Optional external power: 5 - 12VDC
Current consumption less than 10mA
Interface RS-232 DB9 female connector. Pin 7 (RTS) and 8 (CTS) are tied together.
Pin 4 (DTR), 6 (DSR), and 1 (CD) are tied together.
Interface RS422 DB9 male and terminal board
Working mode 4-wire RS422 asynchronous, full-duplex differential and half-duplex RS485
Standards EIA/TIA RS-232C / RS-422 / RS485
Transmission distance RS232: Typical: 15 FT (5m)
RS422: Typical: 4000 FT (1200m)
ESD protection 1500W / 600W/ms
Operating Temp. -13°F to 158°F (-25°C to 70°C)
Operating humidity 5% To 95% - No Condensation
Dimensions 2.47" x 1.33" x 0.70" (62.8 mm x 33.8 mm x 17.8 mm)
Compliance CE, FCC, RoHS, ISO 9001
Warranty 2-year Limited Warranty

For alternative RS232 to RS485 / RS422 solutions please see our full selection of serial converters.

Read the Review
Date Added: 06/17/2024 by Tony H.
5 of 5 Stars!5 of 5 Stars!
Got this converter with the RS422 version, both works well with my weighing scales.

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Date Added: 09/02/2013 by Gary Redinger
4 of 5 Stars!4 of 5 Stars!
For the price this converter is actually good. Most similar converters are priced ridiculous high bu...

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Date Added: 03/27/2011 by Barry Fanion
4 of 5 Stars!4 of 5 Stars!
bought this and the rs485 converter, both works fine, thanks

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Date Added: 02/22/2010 by Billy White
4 of 5 Stars!4 of 5 Stars!
Works fine. Very convenient with both RS422 and RS485 in same unit.

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