Abstract:
A insulation displacement connector (IDC) patch panel includes a circuit (PC) board with interdigitated capacitance for balancing out inherent capacitance found within IDCs of the panel. Unwanted cross-talk signals are reduced as a consequence.
Abstract:
Systems and methods of cathodic protection. The system includes a metallic housing, a backplane situated within the metallic housing, a cathodic protection card coupled to the backplane and a permanent anode, external to the metallic housing, coupled to the cathodic protection card through an isolated port. The cathodic protection system is powered using span power. The permanent anode and metallic housing are adapted to form a closed circuit when both come in contact with an electrolyte. The permanent anode is maintained at a higher potential than the metallic housing.
Abstract:
A modular shelf system for use with an equipment support structure to manage cables has opposed front and rear sides. The shelf system includes a base member adapted to be secured to the equipment support structure and first and second drawers mounted on the base member in side-by-side relation. Each of the first and second drawers is adapted to receive at least one cable from the rear side of the shelf system. Each of the first and second drawers includes a front panel located adjacent the front side of the shelf system and defines a cable port. Each of the first and second drawers is slidable between a first, stored position within the base member and an open position wherein the respective drawer is disposed forwardly of and at least partially withdrawn from the base member to provide access from the front side of the shelf system to a cable or cables introduced into the respective drawer from the rear side of the shelf system.
Abstract:
A insulation displacement connector (IDC) patch panel includes a circuit (PC) board with interdigitated capacitance for balancing out inherent capacitance found within IDCs of the panel. Unwanted cross-talk signals are reduced as a consequence.
Abstract:
A communication apparatus including a metallic shelf having a pair of side plates, a back wiring board mounted in the shelf on the back side thereof and having a plurality of first connectors and a solid ground pattern, and upper and lower guide plates mounted in the shelf, each guide plate having a plurality of guide rails and a plurality of vent holes. A first shield board having numerous openings is mounted on the upper guide plate, and a second shield board having numerous openings is mounted on the lower guide plate. A plurality of plug-in units are mounted in the shelf so as to be inserted along the guide rails of the upper and lower guide plates.
Abstract:
By way of summary, in the preferred form of the invention, the patch panel comprises a manually programmable device that incorporates shunts or dip switches that are readily accessible from the front panel of the device. In the patch panel construction of the invention, a multi-pin connector block is connected to a first circuit board that, in turn, is connected to a second circuit board via a cable connector, thus allowing the signal switching (normalizing) and grounding circuits of the respective jacks to be selectively altered from the front access panel of the device. By manually changing the shunt or dip switch configurations, the respective normalizing and grounding circuits can easily and simply be altered as may be desired without costly system interruption.
Abstract:
The present invention relates to a breaker apparatus and breaker unit. The breaker apparatus comprises a breaker unit including a power supply/cut-off breaker part, a power connecting part, a first unit connecting part, a ground connecting part and a second unit connecting part and further comprises a breaker unit mounting board including a mating power connecting part, a mating ground connecting part, a first connection mediating part and a second connection mediating part. This breaker apparatus is capable of constituting a power distributing apparatus with a necessary but minimized construction, and of extending the breaker unit in a minimum unit according to necessity. In addition, with this breaker apparatus, parts can be used in common irrespective of a change of a ground system, and further, can be replaced in the hot-line condition without cutting off the power supply to a system.
Abstract:
A telecommunications apparatus that has a substantially box-shaped subrack having a back wiring board mounting a connector and a plurality of shell-type plug-in units inserted in the subrack so that a connector of each of the plug-in units is connected to the connector of the subrack, further includes a flexible, electrically conductive seal member elastically deformedly disposed between a lateral surface of the plug-in unit inserted into the subrack and an interior portion of the subrack so as to enclose both the plug-in unit connector.
Abstract:
The present disclosure relates to a rack for mounting telecommunication chassis each adapted for receiving cross-connect modules. The rack includes a frame defining a bay formed between two spaced-apart, vertical end walls. The bay is sized for receiving the telecommunication chassis. The rack also includes a cable management structure connected to the frame. The cable management structure defines first and second separate vertical channels. The first vertical channel defines a first passage area sized for receiving a plurality of cross-connect cables from the telecommunication chassis. The second vertical channel defines a second passage area sized for receiving power and ground wires from the telecommunication chassis. L-shaped tie brackets are positioned in vertical channels defined by the vertical end walls. The tie brackets assist an installer in installing and tying the input and output cables to the rack.
Abstract:
The present disclosure relates to a rack for mounting telecommunication chassis each adapted for receiving cross-connect modules. The rack includes a frame defining a bay formed between two spaced-apart, vertical end walls. The bay is sized for receiving the telecommunication chassis. The rack also includes a cable management structure connected to the frame. The cable management structure defines first and second separate vertical channels. The first vertical channel defines a first passage area sized for receiving a plurality of cross-connect cables from the telecommunication chassis. The second vertical channel defines a second passage area sized for receiving power and ground wires from the telecommunication chassis. L-shaped tie brackets are positioned in vertical channels defined by the vertical end walls. The tie brackets assist an installer in installing and tying the input and output cables to the rack.