Abstract: A bend radius control device for routing and maintaining at least a minimum bend radius of a cable. The bend radius control device includes an arcuate member having a channel and at least one holding portion. The holding portion is configured to hold the bend radius device to one or more cables inserted therein, while the channel is configured to support the one or more cables. A grommet may be used to with the holding portions to aid the holding portion in holding one or more cables inserted in the bend radius control device. The arcuate member has a bend radius that is greater than or equal to the minimum bend radius of one or more cables inserted therein. The bend radius control device is similar in size to a number of cables inserted therein and may be used in a space saving environment.

Abstract: A high efficiency multi-directional airflow system for a telecommunications equipment assembly used for housing electronic apparatuses which facilitate telecommunications functionality. The equipment assembly defines an internal cavity which can be divided into a plurality of air flow channels. Each of the plurality of air flow channels captures a sub-portion of the overall volume provided by the internal cavity. The smaller volume flow channels provide a smaller cross-sectional area through which the majority of air travels. Since the cross-sectional area is smaller, the velocity of the air through the flow channels is increased. Since the air velocity is increased, the heat transfer coefficient is also increased, thus allowing for the more efficient removal of heat from the electronic apparatuses. A set of fan trays can include a plurality of fans each directionally positioned to work in series to cause air to flow through the plurality of flow channels.

Abstract: A circuit board system resiliently mounts a plurality of daughter boards with high circuit interconnection density on a mother board using pairs of mating connectors having welded contact members accommodated in novel arrangements in the respective connectors to permit high density of electrical interconnection with convenience and reliability. Contact parts of substantial size are welded into contacts in one connector to detachably interconnect with contact parts of similar size in mating connector to improve interconnection releability. Novel contact arrangements permit accommodation of those parts of substantial size in the mating connectors. Sheet metal spring or post parts welded into the contacts in both connectors permit the contacts to be conveniently loaded into connector bodies and permit large numbers of contact springs or posts to be soldered to terminal pads or circuit paths on mother or daughter boards with high density.