Patton 222N RS-232 to RS-422 Converters 5Pack

SKU: 1150 Category:




The Patton Model 222N Series of converters now comes in two "flavors": The Model 222N allows an RS-232 device with DB-25 port to connect to an RS-422 device up to 4000 feet away over two twisted pair. The Model 222N9 does the same thing for an RS-232 device with a DB-9 port (now called EIA-574). Both converters support data rates up to 19.2 kbps, and require no AC power or batteries for operation. All handshaking lines are looped back. The Model 222NRC is a dual rack card version of the Model 222N, with two converters in one card.



Additional information

Weight 0.10 lbs
Dimensions 2.20 × 1.75 × 0.75 in


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  • Conforms to the EIA RS-422 Interface Standard
  • Bi-Directional Data Conversion
  • No AC Power Required
  • Handshake Lines are Looped Back
  • Reliable Surface Mount Construction
  • 600W of Optional Surge Protection
  • Made in the USA — This Patton equipment is designed by Patton engineers and built in our Gaithersburg, Maryland facility. Patton's American-made manufacturing process delivers high-quality networking solutions with reliability you can trust.


DB-9 (EIA-574) Versions Also Available
If you need to convert a DB-9 Serial port toRS-422, you need the Patton Model 222N9

Note: Model # 222N9FT (shown above) comes with thumbscrews. Other 222N models come with slotted captive fasteners.


  • Data Format: Asynchronous
  • Data Rate: 0 to 19,200 bps (no strapping)
  • Control Signals: CTS turns ON immediately after the terminal raises RTS; DSR and DCD turn ON immediately after the terminal raises DTR 
  • Transmit Mode: Full duplex, 4-wire
  • Transmit Level: 0 dBm
  • Connectors: Model 222N – Male or female DB-25 (RS-232 side); Male or Female DB-25, RJ-11 jack, RJ-45 jack or terminal posts (RS-422 side). Model 222N9 – Male or female DB-9 (EIA-574 side); RJ-11 jack, RJ-45 jack or terminal posts (RS-422 side).
  • Power Supply: None required; uses ultra low power from EIA data and control signals
  • Dimensions: Model 222N – 2.20 x 1.75 x 0.75 (5.6 x 4.4 x 1.9 cm) Model 222N9 – 2.50 x 1.20 x 0.75 (6.4 x 3 x 1.9 cm)


Model Name



     RS232 TO 422 CONV,DB9F,STR RLF

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