A Four Position Four Contact connector. Used to connect a telephone handset to its base. Commonly, and incorrectly, referred to as RJ9, RJ10 or RJ22. Show contributors This page has been seen 499 times. Created by gafftapegreenia on Aug 12, 2013
A Four Position Four Contact connector. Used to connect a telephone handset to its base. Commonly, and incorrectly, referred to as RJ9, RJ10 or RJ22.