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: 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: 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: An apparatus for releasably attaching a fiber optic module to equipment is disclosed. The apparatus comprises a latch configured to releasably attach the fiber optic module to equipment. The apparatus further comprises a pushrod configured to deactivate the latch from a back end of the fiber optic module, wherein the fiber optic module is released from the equipment. In one embodiment, the fiber optic module is a high-density fiber optic module. The pushrod may be further configured to maintain a position of the latch. The pushrod may also be further configured to be positioned in a groove disposed in a side of a main body of the fiber optic module, wherein the pushrod and the groove are configured to prevent the pushrod from binding while moving within the groove.

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 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: The disclosure relates to a fiber optic connectors and sub-assemblies having a retention body for connectorizing a fiber optic cable along with fiber optic connectors and methods therefor. In one embodiment, the sub-assembly comprises a cable lock comprises a cable channel for receiving a fiber optic cable therethrough, and at least one strength member engagement surface. The retention body comprises an optical fiber channel for receiving an end portion of at least one optical fiber of the fiber optic cable therethrough, and at least one strength member engagement surface. The strength member engagement surfaces of the cable lock and the retention body are configured to cooperate with each other to receive and retain at least one strength member of the fiber optic cable. Other fiber optic connector sub-assemblies are also disclosed.

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: 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: A high-density fiber optic module is disclosed. The high-density fiber optic module comprises an interior, at least one adapter disposed in one end of the high-density fiber optic module having a fiber optic connector configured to connect to one or more optical fibers, and a splice holder assembly positioned in the interior of the high-density fiber optic module. The splice holder assembly may have a single fiber splice holder assembly and a ribbon fiber splice holder feature mounted on a common base. The splice holder assembly is configured to provide fiber management for the one or more optical fibers within the interior of the high-density fiber optic module. The splice holder assembly may be configured to provide fiber management for a fiber harness spliced to a ribbon cable by a first ribbon fiber splice, or may be configured to provide fiber management for a plurality of fiber pigtails.

Abstract: An apparatus for releasably attaching a fiber optic module to equipment is disclosed. The apparatus comprises a latch configured to releasably attach the fiber optic module to equipment. The apparatus further comprises a pushrod configured to deactivate the latch from a back end of the fiber optic module, wherein the fiber optic module is released from the equipment. In one embodiment, the fiber optic module is a high-density fiber optic module. The pushrod may be further configured to maintain a position of the latch. The pushrod may also be further configured to be positioned in a groove disposed in a side of a main body of the fiber optic module, wherein the pushrod and the groove are configured to prevent the pushrod from binding while moving within the groove.

Abstract: A fiber optic cable strain relief device having a plurality of post mounted to a mounting surface is described. The plurality of posts have a first end, a second end and a shaft extending between the first and second ends. The mounting surface is adapted to support the posts, with the posts mounting to the mounting surface at their respective first ends and extending from the mounting surface. The posts are mounted to the mounting surface such that the shafts of adjacent posts are spaced from each other by a distance configured to provide strain relief to a fiber optic cable weaved about the shafts of the adjacent posts. The mounting surface may be attached to a housing and a cover positioned over the posts.

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: 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: 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 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: 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 base and a cover that define a tongue and groove that selectively engage to seal the base and cover. The FDT assemblies also include a mounting plate for mounting of the base and cover, as well as a mounting plate extension for mounting of a skirt. The skirt provides slack storage for drop cables exiting the FDT. The components of the FDT assembly are selectively interlockable to prevent unauthorized access to the interior cavity of the base and cover and to the slack storage area of the skirt.