Corning Cable Systems C-303 Five-Pin Protector Modules
provide protection in a 5-pin type protector for use in central
office connector, remote and building entrance terminal
applications. The housings are made of colored self-extinguishing insulating material. The protector modules have five
contact pins. When inserted into the connector sockets,
contact pins provide the following connections for each cable pair, tip and ring to the outside cable, tip and ring to the central office equipment, protection ground that also acts as a polarization pin. When the protector modules are fully inserted into the
connector base, the outside plant and the central office pairs are connected together. Fast and easy disconnect of the central office pairs from the outside plant pairs is accomplished by pulling the fully inserted protector out to the “detent” position. Protection is still provided on the outside plant cable pairs.