Abstract: According to some aspects of the present disclosure, systems and methods are disclosed for cabinet frames, including frame members coupled together via corner copulas. Frame members may include external and internal channels and surfaces for mounting external and internal components. Systems and methods are also disclosed for coupling the frame members and corner copulas.

Abstract: The present invention relates to a feedback device for a power supply, including a main feedback module, an auxiliary feedback module and a feedback control module. The main feedback module is adapted to sample a voltage on a main output branch of the power supply, and output a main feedback voltage to the feedback control module. The auxiliary feedback module is adapted to reduce the main feedback voltage when a voltage on an auxiliary output branch of the power supply drops. The feedback control module is adapted to control the power supply to increase its power output when the main feedback voltage decreases, so that the voltage on the auxiliary output branch is restored to normal. By using the power supply feedback device of the present invention, the circuit is simple, not only solving voltage sag problems, but also ensuring the power density and cost.

Abstract: A cooling fixture for molded components includes a support surface, at least two brackets coupled to the support surface, and at least one roller having a central axis. The roller is coupled between the brackets for rotating about its central axis and is positioned for contacting a portion of a molded component and rotating about its central axis as necessary to align the molded component and substantially inhibit gouging of the molded component when the molded component is placed in the cooling fixture for cooling. Additional cooling fixtures and related methods are also disclosed.

Abstract: According to some aspects of the present disclosure, systems and methods are disclosed for cabinet frames, including frame members coupled together via corner copulas. Frame members may include external and internal channels and surfaces for mounting external and internal components. Systems and methods are also disclosed for coupling the frame members and corner copulas.

Abstract: According to some aspects of the present disclosure, systems and methods are disclosed for cabinet frames, including frame members coupled together via corner copulas. Frame members may include external and internal channels and surfaces for mounting external and internal components. Systems and methods are also disclosed for coupling the frame members and corner copulas.

Abstract: According to some aspects of the present disclosure, systems and methods are disclosed for cabinet frames, including frame members coupled together via corner copulas. Frame members may include external and internal channels and surfaces for mounting external and internal components. Systems and methods are also disclosed for coupling the frame members and corner copulas.

Abstract: There is provided a grounding detection device and method. The grounding detection device may include an insulation tester and a grounding resistance providing unit. The insulation tester may be mounted in a first cabinet, electrically connected to a positive busbar and a negative busbar to detect an equivalent busbar-to-ground resistance, and grounded via the first cabinet. The grounding resistance providing unit may be mounted at least in part in a second cabinet different from the first cabinet, electrically connected to at least one of the positive busbar and the negative busbar to provide a grounding resistance, and grounded via the second cabinet. The insulation tester may determine, based on resistance values of the equivalent busbar-to-ground resistance and the grounding resistance, whether there is a ground fault or not for the insulation tester, the first cabinet, and the second cabinet.

Abstract: A method of warning a user when a reserve time of a battery plant in a system is substantially degraded is disclosed. The method includes determining a baseline capacity for the battery plant by estimating the reserve time of the battery plant while the battery plant is installed in the system, subsequently determining a present capacity of the battery plant by estimating the reserve time of the battery plant while the battery plant is installed in the system, comparing the present capacity with the baseline capacity, and generating a warning when the baseline capacity exceeds the present capacity by more than a defined amount. Example embodiments of systems and control circuits configured to perform the methods are also disclosed herein.

Abstract: The present invention relates to a power output discharge circuit including: an output filter module configured to receive and filter an input voltage and to output the filtered output voltage to a load; an output charge module configured to charge the output filter module when a power source module is plugged into a system cabinet; and an output discharge module configured to cooperate with the output charge module to discharge the output filter module when the power source module is pulled out of the system cabinet. With an implementation of the power output discharge circuit according to the invention, whether the power source module is pulled out of the system cabinet can be monitored in real time, and upon detecting the power source module being pulled out of the system cabinet, the output discharge module can be started rapidly, and the voltage across the output port can be lowered below a safety voltage in a very short period of time.

Abstract: A lock assembly is provided for releasably coupling a dome of a telecommunications enclosure to a base of the telecommunications enclosure. The lock assembly generally includes a housing having at least one stop, a slider disposed at least partly within the housing and moveable between an extended position for coupling the dome of the telecommunications enclosure to the base of the telecommunications enclosure and a retracted position for uncoupling the dome from the base, and a cam configured to rotate and move the slider between the retracted position and the extended position. The cam is engageable with the at least one stop of the housing to stop rotation of the cam when the slider moves to the retracted position and/or to stop rotation of the cam when the slider moves to the extended position.

Abstract: There is provided a transformer including an E shaped and two I shaped magnetic cores and a first, second and third windings, wherein: one I shaped magnetic core is located between one side and a middle legs of the E shaped magnetic core, another is located between another side and the middle legs; there is an air gap on each of the two I shaped magnetic cores or two side or bottom legs of the E shaped magnetic core, the first winding is wound on a part of the magnetic cores where the air gap exists; the second and third windings are wound on the middle leg; and the first winding is connected in parallel with the second winding to constitute a primary winding; the third winding is a secondary winding. With the transformer provided by the invention, transformer winding loss can be reduced, and transformer efficiency can be improved.

Abstract: A computer-implemented method includes linking a plurality of load distribution points in a power distribution unit to a plurality of electrical loads in response to user input, receiving data indicative of one or more electrical parameters associated with the plurality of load distribution points, selecting a visual indicator from a group of indicators based on the one or more electrical parameters associated with the load distribution point for each of the plurality of load distribution points, and displaying the selected visual indicators for the plurality of load distribution points on a visual display for viewing by a user. Each of the electrical loads are electrically coupled to one or more of the plurality of load distribution points. Example computer systems and non-transitory computer readable medium including computer executable instructions for performing one or more computer-implemented methods are also disclosed.

Abstract: A system includes a digital subscriber line access multiplexer (DSLAM) enclosure having a power area for housing power components and a component area for housing components configured to receive power from the power components. The system further includes at least one DSLAM positioned in the component area of the DSLAM enclosure and an AC power supply for providing AC power to the at least one DSLAM. The AC power supply is positioned in the power area of the DSLAM enclosure.

Abstract: Electronic equipment enclosures of the present disclosure are configured to house electronic equipment. The enclosures generally include vent opening configured to allow air to flow into and out of the enclosures, and fans configured to circulate the air within the enclosures around the electronic equipment housed therein. The enclosures also include backflow assemblies located between the vent openings and the fans, and configured to inhibit movement of unwanted materials through the enclosures between the vent openings and the fans. In addition, the backflow assemblies may include multiple vanes disposed adjacent the vent openings and arranged to block straight paths from the vent openings into the enclosures past the multiple vanes. The multiple vanes may be operable both to inhibit the movement of the unwanted materials through the enclosures and to allow air to flow out of the vent openings from the enclosures without moving.

Abstract: An AC circuit breaker panel includes a housing having a front side, a bus bar positioned in the housing, and one or more terminal blocks positioned in the housing. The housing has brackets adapted for mounting the AC circuit breaker panel to an equipment rack in a telecommunications equipment cabinet. The front side of the housing defines a plurality of openings for mounting a plurality of circuit breakers. The AC circuit breaker panel further includes a first circuit breaker mounted in one of the plurality of openings and wired to the bus bar, and a second circuit breaker mounted in one of the plurality of openings and wired to the bus bar and one of the terminal blocks. Further, a telecommunications equipment cabinet includes an equipment rack and one of the various AC circuit breaker panels disclosed herein.

Abstract: Embodiments of the present invention provide a power supply module and a soft start method. The power supply module includes an input detection circuit configured to output a first notification signal to a trigger drive circuit when it is determined that the power supply module receives a power supply signal; the trigger drive circuit configured to, upon receipt of the first notification signal sent from the input detection circuit, wait for a predetermined duration without sending a drive signal to a current limiting circuit, and to send the driver signal to the current limiting circuit when the predetermined duration elapses; and the current limiting circuit configured to limit a current on a Direct Current (DC) bus of the power supply module when the drive signal is not received by the current limiting circuit, and not to limit the current on the DC bus upon receipt of the drive signal.

Abstract: A system includes a digital subscriber line access multiplexer (DSLAM) enclosure having a power area for housing power components and a component area for housing components configured to receive power from the power components. The system further includes at least one DSLAM positioned in the component area of the DSLAM enclosure and an AC power supply for providing AC power to the at least one DSLAM. The AC power supply is positioned in the power area of the DSLAM enclosure.

Abstract: There is provided a transformer including an E shaped and two I shaped magnetic cores and a first, second and third windings, wherein: one I shaped magnetic core is located between one side and a middle legs of the E shaped magnetic core, another is located between another side and the middle legs; there is an air gap on each of the two I shaped magnetic cores or two side or bottom legs of the E shaped magnetic core, the first winding is wound on a part of the magnetic cores where the air gap exists; the second and third windings are wound on the middle leg; and the first winding is connected in parallel with the second winding to constitute a primary winding; the third winding is a secondary winding. With the transformer provided by the invention, transformer winding loss can be reduced, and transformer efficiency can be improved.

Abstract: A method of warning a user when a reserve time of a battery plant in a system is substantially degraded is disclosed. The method includes determining a baseline capacity for the battery plant by estimating the reserve time of the battery plant while the battery plant is installed in the system, subsequently determining a present capacity of the battery plant by estimating the reserve time of the battery plant while the battery plant is installed in the system, comparing the present capacity with the baseline capacity, and generating a warning when the baseline capacity exceeds the present capacity by more than a defined amount. Example embodiments of systems and control circuits configured to perform the methods are also disclosed herein.

Abstract: An outdoor telecommunications equipment enclosure includes a dome, a base for receiving the dome, and a slide lock assembly for coupling the dome to the base. The slide lock assembly includes a housing coupled to one of the dome and the base and defining a channel and a slider positioned within the channel. The slider is moveable between a retracted position and an extended position for engaging the other one of the dome and the base. In one example embodiment, one of the slider and the housing includes multiple protrusions in contact with the other one of the slider and the housing. The protrusions inhibit surface contact between the slider and the housing. In another example embodiment, the slide lock assembly includes a gasket, seal and/or plug to inhibit ingress of debris into the slide lock assembly.