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 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.

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
Auto data flow control
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

Datasheet, overview and technical details

Download software, diagnostics and troubleshooting

Tech Support, technical support and guidelines

SPECIFICATIONS
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
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.	-40°F to 180°F (-40°C to 85°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

Pin	RS-232 DB9 Female	RS-422 DB9 Male	RS-485 DB9 Male
1	-	TX+	D +
2	RXD	TX-	D -
3	TXD	RX+	-
4	DTR	RX-	-
5	GND	GND	GND
6	DSR	+5 VDC	+5 VDC
7	RTS	-	-
8	CTS	-	-
9	RI	-	-

Click images to enlarge

Price: $25.75

Part: XS203
Out of Stock

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Reviews for this product

Displaying 1 to 2 (of 2 reviews)

Date Added: 03/27/2011 by Barry Fanion

4 of 5 Stars

bought this and the rs485 converter, both works fine, thanks

Date Added: 02/22/2010 by Billy White

4 of 5 Stars

Works fine. Very convenient with both RS422 and RS485 in same unit.

Displaying 1 to 2 (of 2 reviews)

Quick Tip!

Advantages of a combo RS232 to RS-485 / RS-422 converter.

Obviously the advantages of this combo RS232 to RS-422 converter is that you can use it for both RS-422 and 485 conversion. The price for this combo RS422 converter is slightly higher than a standard simgle RS-22 converter however with this RS422 converter you are getting the 485 interface also. So if you expect that you might need a RS485 converter you would not need to buy another converter, simply swap the wires on this RS422 converter and you will have both interfaces available at half the price of buying an additional RS-422 converter. Another advantage of the RS-422 converter interface is that RS-422 is ideal for extending a RS232 signal over RS-422, so by connecting two RS-422 converter interfaces at your RS232 lines you can extend your RS232 data line up to 4000 feet by using two combo RS-422 converters.

To find the right converter take a look at our large selection of RS232 to RS485 / RS422 converter products.

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Serial USB | RS232 | RS485 | RS422 Adapters

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RS232 to RS-485 / RS-422 Converter Port-Powered

Advantages of a combo RS232 to RS-485 / RS-422 converter.

RS232 to RS-485 / RS-422 Converter
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