NMEA 0183 is based on RS-422, so that's what you want to use. Electrically, 0183 and RS-422 are the same thing. 0183 additionally defines a bunch of messages that you send over that RS-422 connection.
Lots of people connect RS-422 and RS-232 devices together, but it's a really bad practice since there is no assurance that it will work reliably. Given their specifications, they are NOT compatible. To work, it depends on data being valid at a time and voltage levels when it is undefined and may or may not be valid. But it works well enough, often enough, that people commonly do it.
To illustrate, I tried it once when the only interface I could get for my nav computer was an RS-232 USB adapter. It seemed to work fine, which is the lure of it all. But when I looked at the detailed data being received by Coastal Explorer, along with the correct messages being received were a steady trickle of corrupted, junk messages. CE was dutifully discarding them, perhaps because they made no sense, or perhaps because their CRC check failed. But do you really want a steady flow of corrupted data in your nav system?