A PCB direct connector including terminal members configured to have a pair of contact portions elastically contacting an upper surface and a lower surface of the circuit board and be electrically connected to conductive patterns disposed on at least one of the upper surface and the lower surface, and a connector housing configured to accommodate the terminal members therein and allow a connector connection portion formed at one side of an end of the circuit board to be fitted into and released from the connector housing.

A system including an electrical header connector assembly is provided. The electrical header connector assembly includes an insulated body with a mating body portion and a strain relief portion, a first self-shorting contact and a second self-shorting contact. Each self-shorting contact includes a contact tail with a wire receiving recess and a contact blade extending opposite and substantially parallel to the contact tail. Each self-shorting contact further includes a shorting beam extending opposite the contact tail. The shorting beam includes a curved portion extending away from the contact blade and a bent tip portion extending toward the contact blade. The shorting beam of the first self-shorting contact is configured to touch the shorting beam of the second self-shorting contact when the electrical header is in a neutral position.

Each of contact portion rows 310 and 320 includes an outer contact portion 212 and an inner contact portion 216 forming a differential pair. In a Y-direction, the outer contact portion 212 and the inner contact portion 216 of the contact portion row 310 are located at same positions as those of the other contact portion row 320, respectively. A main portion 430 of a mid-plate 400 is located between the contact portion rows 310 and 320 in a Z-direction. Between the main portion 430 and each lock portion 450, a space 500 is provided to allow resilient deformation of a spring portion 460. A side edge 432 of the main portion 430 that oriented outward in the Y-direction is located between an inner edge 212A of the outer contact portion 212 and the lock portion 450 in the Y-direction.

A receptacle connector includes an insulative receptacle housing and a plurality of receptacle contacts retained in the receptacle housing. The plug connector includes an insulative plug housing and a plurality of plug connectors retained in the plug connector. The receptacle housing includes a rear wall extending along a lengthwise direction, and a pair of side walls extending from two opposite ends of the rear wall along the front-to-back direction perpendicular of the lengthwise direction, to commonly form a receiving space thereamong. The receiving space forms a front opening and an upper opening for communicating with an exterior. The receptacle contacts are retained in the rear wall and extend into the receiving space. The plug connector is adapted to be rearwardly inserted into the receiving space along the front-to-back direction via the front opening, or be downwardly and rotationally inserted into the receiving space via the upper opening.

A housing includes a terminal accommodating chamber and a lance. The lance includes a locking portion configured to lock the abutting edge of the terminal, a clearance portion, and a boundary portion between the locking portion and the escape portion. The locking portion is provided on one side of the boundary portion toward which the lance deflects in the first direction, and the clearance portion being provided on another side of the boundary portion toward which the lance returns in the second direction. An edge of the locking portion on a side opposite to the boundary portion and an edge of the clearance portion on a side opposite to the boundary portion are disposed away from the boundary portion toward the rear side of the housing from which the terminal is inserted.

A housing includes a terminal accommodating chamber and a lance. The lance includes a locking portion configured to lock the abutting edge of the terminal, a clearance portion, and a boundary portion between the locking portion and the escape portion. The locking portion is provided on one side of the boundary portion toward which the lance deflects in the first direction, and the clearance portion being provided on another side of the boundary portion toward which the lance returns in the second direction. An edge of the locking portion on a side opposite to the boundary portion and an edge of the clearance portion on a side opposite to the boundary portion are disposed away from the boundary portion toward the rear side of the housing from which the terminal is inserted.

A connector includes a casing, a locking member and a sliding actuation frame. The casing has a housing, the housing has a mounting portion. The locking member is pivoted to the mounting portion and can rotate under a force, and has a front section and a rear section at opposite ends. The sliding actuation frame is provided in the mounting portion and can move between a normal position and an operated position relative to the housing, and includes an unlocking bar and a locking bar. When the sliding actuation frame is in the normal position, the locking bar abuts against the front section and the unlocking bar leaves the rear section to position the front section in the locking position and the front section cannot move toward the unlocking position. When the sliding actuation frame is operatively moved rearwardly from the normal position to the operated position along the front-rear direction, the locking bar leaves the front section and the unlocking bar abuts against the rear section so as to make the front section move to the unlocking position.

A cable assembly is provided comprising a collar adjacent to a cable transition member, the cable transition member having a first longitudinal axis x.sup.1, the collar having a second longitudinal axis x.sup.2. The cable transition member provides for a cable to extend by approximately 90 degrees from the first axis x.sup.1 of the cable transition member, a connector body having a non-circular outer diameter, wherein the collar is disposed between the connector body and the cable transition member so that the first axis x.sup.1 and the second axis x.sup.2 are aligned and the collar secures the cable transition member in a predetermined angular orientation z with respect to the connector body. The angular orientation z of the cable transition member with respect to the connector body is other than 90, 180, 270 or 360 degrees with respect to the first axis x.sup.1.

An optical module includes a base, an upper housing, an unlocker and a handle. The unlocker is rotatably connected to the base. The unlocker has a lock catch for locking the optical module. The handle is rotatably connected with the base by way of a first rotating portion. The unlocker is configured to be driven by the handle to rotate and cause the optical module to be in a locked state or an unlocked state. When the optical module is in the locked state, a first end of the handheld portion is further from a top surface of the upper housing than a second end of the handheld portion. A distance from the second end to a rotation axis of the first rotating portion is less than or equal to a distance from the first end to the rotation axis of the first rotating portion.

A plug connector has a movable unlocking structure, and a plug connector assembly includes the plug connector and two slidable locking portions to be engaged with the left and right surfaces of the plug connector respectively. The rear surface of the plug connector has two first locking units, at least one of the plug connector and the slidable locking portions has an inclined contact surface, and when the plug connector is connected to a socket connector and the slidable locking portions are engaged with the plug connector and move toward the top side of the plug connector, the rear surface of the plug connector is pushed outward with the assistance of the inclined contact surface, unlocking the first locking units from the engaging portions on the socket connector respectively.