Abstract:
A chassis and associated telecommunication circuit card are disclosed. The chassis has heat dissipation and flame containment features while accommodating a high density of the circuitry cards. Embodiments include an inner housing with a double-layer middle floor dividing the chassis into top and bottom chambers. Each layer has partially aligned slots, and an air gap is provided between the two layers. Embodiments also include a double-layer mesh cover with an air gap existing between the two mesh layers. Projections and grooves are provided on the inner surfaces of the inner housing to receive circuit cards having a guide on one edge and a fin on another. The guide includes an opening that at least partially aligns with slots on the adjacent surface of the inner housing. The circuit card includes a finger extending from a faceplate that facilitates insertion and removal of the circuit card relative to the chassis.
Abstract:
A test box including a housing defining a front plane and a back plane. A plurality of jacks are positioned adjacent the front plane. The jacks define a plurality of rows of ports. Each row of ports includes at least 24 ports. The jacks also include electrical contacts corresponding to each of the ports. The testing box also includes a plurality of pairs of electrical connectors positioned adjacent the back plane. Each pair of electrical connectors includes an input connector for inputting signals into the test box and an output connector for outputting signals from the test box. The test box further includes a plurality of circuit boards positioned within the housing. The circuit boards include tracings for conveying signals from the input connectors to the jacks and for returning the signals from the jacks back to the output connectors.
Abstract:
The present invention relates to an electronic signal switching module with connectors on a first side for connecting with a variety of devices and sources and with jacks for receiving patch cords on a second side. The switching modules include two position switches in the circuitry connecting the jacks with the connectors which allow the module to be configured as a straight-through patching module, a fully normal module with paired jacks or a half normal module with paired jacks. One alternative of the invention utilizes card edge connectors on the first side. Another aspect of the invention involves a chassis for holding a plurality of switching modules adjacent to and electronically connected with a plurality of connecting modules. The switching modules may also include designation lenses adjacent to the jacks for holding indicia.
Abstract:
A protective unit housing cell equipment is constituted by a number of metal cabinets, placed and joined to form substantially a cage of Faraday. One of the units comprise radio equipment and preferably only the radio equipment, another one houses the supporting equipment (including supply equipment such as for instance batteries).
Abstract:
A system and method for retrofitting telecommunications infrastructures of existing buildings with new telecommunications services. The present invention allows new telecommunications services to be provided over existing telephone lines with reduced cost. The telephony line interface module (or line interface transducer) used in retrofitting rooms of a building may be implemented as a telephone jack, in a telephony device, or as a separate device or "brick" which connects to the existing telephone wiring. In order to retrofit a room of a building with additional telecommunication capabilities, the line interface module is located in the room and connected to the existing telephone wiring. In one embodiment, a modulation unit may be connected to the existing telephone wiring, e.g., to the "other end" of the existing telephone wiring proximate to the PBX. The modulation unit may also be connected to a network, such as the Internet. The modulation unit is configured to communicate with line interface modules in each of a plurality of rooms and is configured to communicate with the network, and may optionally also communicate with the PBX. The system and method may operate to retrofit one or more rooms with improved telecommunication capabilities, such as a second phone line, a modem line, and/or a network line, among other capabilities. The present invention also provides improved telephony line interface module and telephony device embodiments that effectively implement line card functionality in the telephony line interface module and/or telephony device, respectively.
Abstract:
The invention relates to a jack assembly including a jack mount with a jack receiving region. A jack is adapted to be slidably mounted in the jack receiving region. The jack includes a jack body formed of a dielectric material and a plurality of electrically conductive tip and ring springs. The jack body defines a plurality of bores sized to receive plugs having tip and ring contacts. The jack assembly further includes a plurality of cross-connect contacts and a rear interface assembly including a dielectric support. A plurality of rear connectors project outward from the dielectric support, and a circuit board is positioned between the jack mount and the dielectric support. The circuit board provides connections between the cross-connect contacts and the normal contacts. An electrical interface between the jack and the circuit board is configured such that when the jack is removed from the jack mount, the jack is automatically disconnected from the circuit board.
Abstract:
The use of lines of optical fibres in communication systems requires additional space in structural frameworks in order to avoid mixing electrical and optical cables. The invention solves this problem by providing a large-surface carrier (1) between the rear part of the assembly carrier and the door (5) of the cabinet. The large-surface carrier is used to accommodate optical system components (2, 3).
Abstract:
A rack mountable cable distribution enclosure (10). The cable distribution enclosure (10) includes a tray (26) that slides forward and backward out of the cable distribution enclosure (10). The tray includes an adapter plate bracket (28) which receives a plurality of adapter plates (92). The adapter plate bracket (28) holds up to 12 adapter plates (92), each of which holds a variety of adapters. In fiber optic cable applications, each adapter plate (92) can hold 6 duplex adapters, or 12 fibers, providing a density of 144 fibers.
Abstract:
Exemplary implementations of the present invention address at least the above problems and/or disadvantages and other disadvantages not described above. Also, the present invention is not required to overcome the disadvantages described above, and an exemplary implementation of the present invention may not overcome any of the problems listed above. A first embodiment of the invention is a universal network interface device including: an enclosure; an access module in the enclosure; a modem module attached to the enclosure and electrically connected to the access module; a switching power supply in the enclosure providing power to the modem module; and a battery in the enclosure providing power to the modem module.
Abstract:
A telecommunications system is provided, to allow for the securement of a module to a chassis in multiple positions. The multiple positions may include a storage position and/or an engaged position.