Fire-Lite FPJ-F Phone Jack Firefighter RemoteHoneywell's FireLite Alarms Firefighter Phone Jack mounts to a single gang electrical box. Connect the telephone audio loop between the FPJ F and ACC FFT. All circuits are power limited and supervised. To make a call to the main panel, insert the handset plug into the FPJ F phone jack. When call is completed, remove the handset from the jack. Shielded wire is not required, but is recommended if the telephone is run with other communication circuit