Abstract:
A zone distribution adapter 2 for use as a breakout or tap with twisted pair cables provides a compact configuration that can be employed as a standalone component with a cover 22 enclosing a printed circuit board assembly, or the printed circuit board assembly can be mounted in standard distribution boxes or beneath a low profile access floor. The preferred embodiments of the zone adapter printed circuit board assembly includes a twenty-five pair vertical mount electrical connector 12 soldered to a printed circuit board 8 with four-pair electrical connectors, such as right angle modular jacks 16 or punchdown blocks 20 soldered on the sides of the twenty-five pair connector. Printed circuit board traces 10 connect corresponding positions in the twenty-five pair connector 12 and the four-pair connectors 16, 20. The cover 22 includes a central channel 26 between two raised side sections 28 with an opening 24 through which the mating portion 14 of the twenty-five pair connector extends. Twenty-five pair cable connectors 42 mated to the vertical mount printed circuit board connector 12 are thus positioned on the outside of the cover 22 so that the zone adapter retains a low profile which permitting the use of different cable connector configurations.
Abstract:
This invention is directed to a fully shielded printed circuit (PC) card holder, that may be readily "snapped" into the assembly, or disassembled, as the case may be. The holder is intended to receive a PC card, where at least one end of the card is adapted to be electrically connected to an I/O type connector. The holder comprises a generally rectangular bottom cover member formed of a conductive material, corner supports integrally molded to the bottom cover member at the respective corners thereof, where each support includes a lower flange portion to which the bottom cover member is exposed. Further, a generally rectangular upper cover member is provided where the periphery thereof includes a downwardly extending flange adapted to engage the lower flange portion in electrical contact with the bottom cover member over a substantial portion of the periphery thereof. In the assembled condition, the holder provides continuous shielding against distortion of data signals between the PC card and the I/O type connector.