LINE JACK UNIT No. 1
|Single outlet, single circuit surface mounting LJU.
Smaller than 2/- LJU, some versions have front plate with no screw fixings (squeeze sides to release).
Size = 50mm x 50mm x 25mm.
1/1A = Master (has ringing capacitor, Line test resistor & lightning protector)
1/2A = PBX master
1/3A = Secondary
Last revised: October 30, 2022