The Viking LLA-1 Long Loop Adapter is a direct replacement for the discontinued Proctor model 46222. This adapter provides long line and off-premise extension (OPX) capabilities for PABX and KSU analog stations. It converts any low voltage or weak ringing analog line into a standard 48V line equipped with a powerful 20Hz sine wave ring signal.

Compatible with both pulse dialing and touch tone dialing, the LLA-1 supports hook switch flash features and CPC signaling. A ground screw terminal is included for improved surge protection and as an earth ground reference for the regenerated line. The installation process is straightforward with no programming required, making it an excellent choice for converting an analog KSU/PABX station to a standard voltage OPX.