Modular jack

A modular jack for receiving a modular plug, said modular jack comprising:

• a) a flat member having first and second opposed major surfaces and having a hole pierced in said flat member and extending between said opposed major surfaces so that said hole has first and second openings each at a respective one of said first and second major surfaces, the modular plug being insertable into the hole by movement in an insertion direction through said first opening, said flat member having guide surfaces in said hole for guiding insertion movement of the modular plug;
• b) an electrode section disposed in said hole for contact with electrodes of the modular plug when the modular plug is inserted in said hole to a predetermined position relative to said first opening;
• c) a hook member located near said first opening for locking the modular plug in place relative to said modular jack when the modular plug is inserted to the predetermined position, thereby preventing movement of the modular plug from the predetermined position in a direction opposite to the insertion direction;
• and
• d) an open-top box member supported by said flat member and having a bottom surface which extends across said hole and is oriented transverse to the insertion direction, said box member being movable in translation relative to said flat member to an end position in which the modular plug bears against said bottom surface when the modular plug is in the predetermined position so that said hook member and said box member cooperate to retain an inserted modular plug in the predetermined position.