Direct Replacement for Proctor model 46222 Long Loop Adapter The Viking model LLA-1 provides long line and off premise extension (OPX) capabilities for PABX and KSU analog stations. The long loop adapter converts any low voltage or weak ringing analog line into a standard 48V line with powerful 20HZ sine wave ring signal. The LLA-1 is compatible with pulse dialing touch tone dialing hook switch flash features and CPC signaling. A ground screw terminal allows for improved surge protection and as a earth ground reference for the regenerated line. The long loop adapter is easy to install requires no programming and can be used as a direct replacement for the discontinued Proctor model 46222 long loop adapter Convert an analog KSU/PABX station to a standard voltage OPX Provides 48 VDC talk battery Provides 20 HZ 10 REN sine wave ringing Passes hook switch flash DTMF and pulse dialing compatible Passes CPC signals Electrically isolates PABX station from extended loop Provides lightning and surge protection