Abstract:
A telecommunications protection unit includes a voltage unit having an electrically insulating base configured to house a diode module assembly and a voltage limiting cell therein. The voltage limiting cell and diode module assembly are retained within the housing by a bus clip. The housing includes structure for preventing damage to the voltage limiting cell and diode module assembly during placement of the bus clip thereon. The diode module assembly is a one-piece article including a bus bar and several diodes and terminals which can be used by itself or in a voltage unit to provide desired electrical effects and facilitate assembly of an electrical system such as a telecommunications protection unit. The terminals of the diode module are highly flexible to respond to excessive voltage and sneak current events encountered by telecommunications protection equipment, and the bus clip is constructed to provide a plurality of independently yieldable segments to accommodate diode stacks of variable heights and reduce manufacturing costs.
Abstract:
A hinge which includes a first leaf member, a second leaf member, and a pin rotatably connecting the first leaf member to the second leaf member. The hinge also includes a first contact member connected to the first leaf member and a second contact member connected to the second leaf member. A contact portion of the first contact member and the second contact member establish an electrical connection with each other.
Abstract:
A network interface unit having a plurality of modular layers mountable on each other in a consecutive manner with each modular layer having provisions for being hinged.
Abstract:
A grounding device for interfacing telecommunications equipment connected through tip and ring conductors and an electronic module with a grounding path for discharging current surges and voltage spikes. The grounding mechanism includes a voltage discharge member mounted between the electronic module and a mounting base for discharging voltage spikes from the electronic module through a grounding path in the mounting base. A biasing member is provided for applying restorative displacement force to the electronic module in a direction opposite to the direction of a force applied to the electronic module by a voltage spike, to thereby ensure and maintain electrical contact between the electronic module and the discharge member.
Abstract:
A building entrance protector terminal comprises a housing unit having a plurality of sidewalls and a bottom wall. The sidewall includes an opening that extends from a portion within the sidewall to its rim. A sliding panel is disposed within the opening. A knockout portion is disposed within the sidewall and adjacent the opening, such that when the sliding panel is removed the knockout portion is accessible from the edge of the sidewall.
Abstract:
A network interface device is disclosed that connects a plug of a telephone test equipment to the telephone lines of the central office of a telephone service supplier, while at the same time disconnects customer's telephone lines from the telephone lines of the central office. Conversely, when the plug of the telephone test equipment is removed, the customer's telephone lines are reconnected to the telephone lines of the central office. The connection/disconnection is accomplished simultaneously by the insertion of the plug of the telephone test equipment into the cavity of a jack of the network interface device.
Abstract:
A building entrance protector having a housing unit. The housing unit is provided with a plurality of walls and a sidewall, the sidewall defining an outer side and an inner side. A door is coupled to the sidewall and rotatable about an axis of rotation with the door defining a frictionally engaging edge. The door is positionable between a closed position and a secured opened position. A frictionally engaging member is mounted on the outer side of the sidewall so that when the door is moved from the closed position to the secured opened position, the frictionally engaging edge interferes with the engaging member to restrain the door. Additionally, the distance from the axis of rotation to the frictionally engaging edge of the door is less than the distance from the axis of rotation to a frictionally engaging portion of the frictionally engaging member.
Abstract:
A grommet for sealing the interface between two vertically stacked building entrance protector and for protecting wires and/or cables traversing through openings of one building entrance protector to another. The grommet comprises a tubular body defining an axial passageway therebetween wherein cables and/or wires traverse. The tubular body has a diameter the same or smaller than the openings on the sidewall of the upper building entrance protector such that the tubular body fits within the opening. At one end of tubular body is an integral annular base having a diameter larger than the opening on the sidewall of the lower building entrance protector. Radially extending from the mid section of the tubular body towards annular base is an integral flange having a diameter larger than the annular base and having at least one circular ridge. The opening of the lower building entrance protector fits between the circular ridge and the annular base, where the distance between the ridge and the annular base is narrower than the thickness of the sidewall of the lower building entrance protector which causes the ridge to deflect and resilient engage and exert pressure against the sidewall to seal the opening of the lower building entrance protector.
Abstract:
An electrical connector assembly simply, and securely, grounds a shielding layer of a telephone cable to a conductive, grounded electrical box housing a protector module. During assembly, an insulation layer is removed from an end of the telephone cable to expose a portion of the shielding layer. The exposed portion of the shielding layer is folded back onto an adjacent, remaining portion of the insulation layer. A first sleeve is inserted into the end of the telephone cable and resides beneath a portion of the shielding layer. A second sleeve, formed of an electrically conductive material, is physically and electrically attached to the electrical box. The end of the telephone cable, having the first sleeve inserted therein, is inserted into the second sleeve. At least one crimp is formed in the second sleeve, which causes an inner conductive surface of the second sleeve to contact the folded back, shielding layer of the telephone cable to thereby establish an electrical connection between the electrical box and the shielding layer.
Abstract:
A printed wiring board employing a grooved path conductive lead configuration. The printed wiring board is formed on a substrate having a surface area. Grooved paths having side walls are formed in the substrate and the sidewalls are coated with a conductive material to form a conductive lead for carrying an electronic signal. The grooved path leads permit closer spacing between adjacent lead pairs without increasing crosstalk between the lead pairs. The grooved path leads also accommodate the inclusion of obstructions such as mounting areas on the substrate because the spacing between adjacent grooved path leads can be condensed without increasing crosstalk levels.