Abstract: A power supply module (100) for use with a card cage (10) for conditioning card cage input power and transmitting DC power to a backplane (20) of the card cage. The module (100) is adapted to be inserted into a card-receiving region (14) of the card cage from the front, and is removable therefrom. Connectors (70) on the leading edge (66) of the circuit card (102) of the module (100) self-engage with complementary connectors (30) of the backplane to establish power and signal connections therewith upon full insertion of the power supply module into a power module site (34) of the card-receiving region (14). The power supply module includes remote operator shut-off capability, overvoltage protection, overcurrent protection, overtemperature protection, temperature and voltage monitoring, and provides for orderly powering-up and powering-down of the card cage and for initializing critical data storage in the event of power failure.

Abstract: An operating mechanism (50,182) for providing mechanical advantage for mating and unmating a fixture (10) to a receiver (150) manually at a separable interface for mating complementary arrays of electrical connectors (12,152) for use in testing equipment. The leading end (80,88) of the operating mechanism (50) of the fixture is inserted into a receptacle (182) of the receiver and locks to secure the fixture to the receiver, simultaneously unlocking a subassembly (58) within the operating mechanism to be manually rotated to fully mate the now-adjacent arrays of connectors. The subassembly (58) is movably secured within an outer barrel (54) affixed to a frame (20) of the fixture and includes an axially spring biased central shaft (70) movable within an inner barrel (72).