Abstract: A power distribution module can be installed in and connected to a power unit for providing power to a power-consuming DAS component(s), such as a remote unit(s) (RU(s)) as a non-limiting example. The RU may include an antenna, and may sometimes be referred to as a remote antenna unit or RAU. Power from the power distribution module is distributed to any power-consuming DAS components connected to the power distribution modules including but not limited to remote units. The power distribution modules distribute power to the power-consuming DAS components to provide power for power-consuming components in the power-consuming DAS components. In a first configuration, the power distribution module uses two power links to provide power to a single RU. In a second configuration, the power distribution module uses two power links to provide power to two RUs.

Abstract: Power distribution modules in distributed antenna systems include fan monitoring circuits for indicating an alarm condition to head-end equipment. The alarm condition can be used by system operator/owners that a fan is drawing excessive power, thereby detracting from system performance, or indicating that the fan may fail. The alarm condition signal can be returned to the head-end equipment via an uplink communication path between a remote unit powered by the module and the head-end equipment.

Abstract: Fiber optic enclosures employing clamping assemblies for strain relief cables and related assemblies and methods are disclosed. The fiber optic enclosures may be part of a fiber optic terminal in a fiber optic network. The fiber optic enclosures may include openings in the walls of the fiber optic enclosure. A cable fitting assembly may be attached to a portion of the wall around an opening to form a passageway for fiber optic cables to enter the fiber optic enclosure. An elongated member may be used to guide the fiber optic cables through the passageway. The elongated member may have a first end and second end. The elongated member may include a clamping assembly at the first end to provide strain relief to the fiber optic cables by clamping strength members of the fiber optic cables.

Abstract: Power distribution modules capable of “hot” connection and/or disconnection in distributed antenna systems (DAS), and related components, power units, and methods are disclosed. The power distribution modules are configured to distribute power to a power-consuming DAS component(s), such as a remote antenna unit(s) (RAU(s)). By “hot” connection and/or disconnection, it is meant that the power distribution modules can be connected and/or disconnected from a power unit and/or a power-consuming DAS component(s) while power is being provided to the power distribution modules. Power is not required to be disabled in the power unit before connection and/or disconnection of power distribution modules. As a non-limiting example, the power distribution modules may be configured to protect against or reduce electrical arcing or electrical contact erosion that may otherwise result from “hot” connection and/or connection of the power distribution modules.

Abstract: A strain relief device for a fiber optic cable is disclosed. The strain relief device has a cable fitting having a cable fitting body, a shoulder washer and a compression cap. The cable fitting is positioned on the fiber optic cable. The shoulder washer is installed on a central tube of the fiber optic cable, under strength members of the fiber optic cable and fitted in the cable fitting body. The compression cap is installed over the central tube with the strength members inserted through the compression cap. The strength members are compressed between the shoulder washer and the compression cap. The compression cap provides compressive force between the cable fitting body, the shoulder washer and the compression cap.

Abstract: Fiber optic cables seal and/or strain relief members and related assemblies and methods are disclosed. In one embodiment, an elongated member is provided that facilitates providing sealing and/or strain relief of a portion of multiple fiber optic cables not enclosed within a common outer cable jacket or sheath when disposed through the opening of the fiber optic terminal. In one embodiment, the elongated member includes a sealing portion configured to facilitate sealing of a fiber optic terminal opening when the multiple fiber optic cables are received in the sealing portion and the elongated member is disposed through the opening of the fiber optic terminal. In another embodiment, the elongated member includes a strain relief portion on a second end configured to receive and provide strain relief to the multiple fiber optic cables disposed inside the fiber optic terminal, when the elongated member is disposed through the fiber optic terminal opening.

Abstract: A fiber optic adapter mount is disclosed. The fiber optic adapter mount has a receiving area for receiving an adapter, a retention feature and a mounting feature. The retention feature is configured to releasably retain the adapter in the receiving area. The mounting feature is for mounting the adapter mount to a surface.

Abstract: Mounting devices for optical devices, and related sub-assemblies, apparatuses, and methods are disclosed. The mounting devices may be employed to secure optical devices that are configured to convert optical signals to electrical signals, or electrical signals to optical signals. The mounting devices may be configured to secure optical devices to an electronics board, such as a printed circuit board (PCB) as an example. To preserve signal integrity, the mounting devices may also be configured to align the optical devices with electrical lead connections on the electronics board. The mounting devices may also be configured to improve grounding of the optical devices to provide and improve radio frequency (RF) shielding to avoid degradation of signal-to-noise (S/N) ratios from RF interference from electronic devices on the electronics board and other nearby electronic devices.

Abstract: A local convergence point for a fiber optic network is disclosed. The local convergence panel has an enclosure with an interior. An adapter panel separates the interior into a first section and a second section. An interior panel removably mounts in the interior in at least one of the first section and the second section. At least one optical component removably mounts to the interior panel. The optical component may be a splitter module, a splice holder, a routing guide, furcation devices, a ribbon fan-out body, a wave division multiplexer and/or a coarse wave division multiplexer.

Abstract: A transition box for a fiber optic network for a multiple distribution unit (MDU) is disclosed. The transition box comprises an enclosure a fiber optic adapter removably mounted in the enclosure. The fiber optic adapter is configured to receive one or more optical fibers of a riser cable to provide optical communication service from a service provider to a subscriber premises. A payout reel removably mounted in the enclosure stores slack of the riser cable paid out to at least one of one or more distribution levels in the MDU.

Abstract: There is provided fiber drop terminals (“FDTs”) and related equipment for providing selective connections between optical fibers of distribution cables and optical fibers of drop cables, such as in multiple dwelling units. The FDTs require relatively little area and/or volume while providing convenient connectivity for a relatively large number of optical connections. The FDTs include adapters for optically connecting the connectors, and the adapters of some FDTs are adapted to rotate, move, or otherwise be removed to provide convenient access for technicians. Some FDTs and the related equipment are adapted for use with microstructured optical fiber having preferred bend characteristics.

Abstract: There is provided fiber drop terminal (“FDT”) assemblies for providing selective connections between optical fibers of distribution cables and optical fibers of drop cables, such as in multiple dwelling units. The FDT assemblies include a mounting plate that enables the FDT to be conveniently and securely mounted to a generally vertical surface, such as a wall. The mounting plate is structured such that the base of the FDT must be removed before the mounting plate can be removed, and the cover of the FDT is structured that neither the base nor the mounting plate can be removed without first removing the cover. The cover may be selectively locked to the base and/or mounting plate with a locking fastener; therefore, only technicians able to remove the locking fastener may remove the cover, base, and/or mounting plate of the FDT assembly.

Abstract: A compact optical splitter module is disclosed. One type of compact optical splitter module is a planar attenuated splitter module that includes a branching waveguide network having j?1 50:50 splitters that form up to n?2j output waveguides having associated n output ports, wherein only m<n output ports are suitable for transmitting light to the at least one external output device. This provides a 1×m splitter module wherein each output port has the attenuation of a 1×n splitter module, thereby obviating the need for external attenuation. Another type of compact optical splitter module is a direct-connect splitter module that eliminates the need for an optical fiber array when coupling to external optical fibers. Another type of compact optical splitter module is a microsplitter module that serves as device and module at the same time and that eliminates the differentiation between device and module. The integration of device and module also makes manufacturing the microsplitter module cost-effect.

Abstract: There is provided fiber drop terminal (“FDT”) assemblies for providing selective connections between optical fibers of distribution cables and optical fibers of drop cables, such as in multiple dwelling units. The FDT assemblies include a mounting plate that enables the FDT to be conveniently and securely mounted to a generally vertical surface, such as a wall. The mounting plate is structured such that the base of the FDT must be removed before the mounting plate can be removed, and the cover of the FDT is structured that neither the base nor the mounting plate can be removed without first removing the cover. The cover may be selectively locked to the base and/or mounting plate with a locking fastener; therefore, only technicians able to remove the locking fastener may remove the cover, base, and/or mounting plate of the FDT assembly.

Abstract: There is provided grommet and plate assemblies for sealing fiber optic closures into which and/or out of which fiber optic cables are routed. The grommet of the assembly includes a central portion with an axial opening adapted to receive the fiber optic cable through a slit in the central portion. The grommet also includes an end cap portion on an axial end of the grommet, and the end cap portion includes a deformable outer lip that overhangs an outer surface of the central portion to provide axial retention of the grommet once it is inserted into an opening of the plate. The plate includes a plurality of openings into which grommets may be selectively inserted. The plate may be received within an opening of the fiber optic closure and includes a slot for receiving a protrusion within the opening of the fiber optic closure.

Abstract: There is provided fiber drop terminal (“FDT”) assemblies for providing selective connections between optical fibers of distribution cables and optical fibers of drop cables, such as in multiple dwelling units. The FDT assemblies include a mounting plate that enables the FDT to be conveniently and securely mounted to a generally vertical surface, such as a wall. The mounting plate is structured such that the base of the FDT must be removed before the mounting plate can be removed, and the cover of the FDT is structured that neither the base nor the mounting plate can be removed without first removing the cover. The cover may be selectively locked to the base and/or mounting plate with a locking fastener; therefore, only technicians able to remove the locking fastener may remove the cover, base, and/or mounting plate of the FDT assembly.

Abstract: An environmentally sealed closure, such as a terminal for terminated ends of fiber optic cables, includes a housing having a wall defining an interior volume. A floating sealing assembly is provided including a first plate, a seal member and a second plate arranged in a stack within the interior volume. The seal member has an outer sealing edge for contacting the wall of the housing, which may be straight and/or chamfered. Fiber optic cables extend through the sealing assembly so that the terminated ends are within the splice area. The floating sealing assembly is compressed so as to place the outer sealing edge of the seal member in sealing contact with the wall of the housing. When a pressure differential exists between the splice area and the outside of the housing only one of the first or second plates moves along the longitudinal axis to further compress the seal member and increase sealing between the outer sealing edge and the housing wall.

Abstract: There are provided fiber optic local convergence points (“LCPs”) adapted for use with multiple dwelling units (“MDUs”) that facilitate relatively easy installation and/or optical connectivity to a relatively large number of subscribers. The LCP includes a housing mounted to a surface, such as a wall, and a cable assembly with a connector end to be optically connected to a distribution cable and a splitter end to be located within the housing. The splitter end includes at least one splitter and a plurality of subscriber receptacles to which subscriber cables may be optically connected. The splitter end of the cable assembly of the LCP may also include a splice tray assembly and/or a fiber optic routing guide. Furthermore, a fiber distribution terminal (“FDT”) may be provided along the subscriber cable to facilitate installation of the fiber optic network within the MDU.

Abstract: There is provided fiber drop terminals (“FDTs”) and related equipment for providing selective connections between optical fibers of distribution cables and optical fibers of drop cables, such as in multiple dwelling units. The FDTs require relatively little area and/or volume while providing convenient connectivity for a relatively large number of optical connections. The FDTs include adapters for optically connecting the connectors, and the adapters of some FDTs are adapted to rotate, move, or otherwise be removed to provide convenient access for technicians. Some FDTs and the related equipment are adapted for use with microstructured optical fiber having preferred bend characteristics.

Abstract: There are provided fiber optic local convergence points (“LCPs”) adapted for use with multiple dwelling units (“MDUs”) that facilitate relatively easy installation and/or optical connectivity to a relatively large number of subscribers. The LCP includes a housing mounted to a surface, such as a wall, and a cable assembly with a connector end to be optically connected to a distribution cable and a splitter end to be located within the housing. The splitter end includes at least one splitter and a plurality of subscriber receptacles to which subscriber cables may be optically connected. The splitter end of the cable assembly of the LCP may also include a splice tray assembly and/or a fiber optic routing guide. Furthermore, a fiber distribution terminal (“FDT”) may be provided along the subscriber cable to facilitate installation of the fiber optic network within the MDU.