Abstract: An addressable optical network interface unit includes an optical input and a radio frequency output. The unit also includes an optical-to-electrical conversion circuit that converts optical signals received at the optical input into radio frequency signals, a directional coupler that is coupled to an output of the optical-to-electrical conversion circuit and a radio frequency receiver that is coupled to a first output of the directional coupler. The radio frequency receiver receives radio frequency signals input through the optical input. The unit also includes a controller that is coupled to the radio frequency receiver, and a filter circuit that is coupled to a second output of the directional coupler. The filter circuit includes multiple signal paths that filter out signals in different frequency ranges. Switches are provided that select one of the signal paths through the filter circuit. These switches are controlled in response to data contained in the radio frequency signal.

Abstract: An in-ceiling cabling enclosure for supporting communications network equipment and cables interconnecting the network equipment including a front wall, a rear wall, and two side walls extending between the front wall and the rear wall creating a volume inside the enclosure. An access door assembly is pivotally connected to either the rear wall or the two side walls. The access door assembly pivots through an arc of ninety degrees between a first position opening the enclosure and a second position closing the enclosure. An equipment mount plate is attached to an interior portion of the access door assembly, and opposed equipment mount rails are removably attached to the equipment mount plate. The equipment mount rails are adapted to receive the network equipment and to secure the network equipment to the access door assembly.

Abstract: A cable manager is disclosed. The cable manager includes a backbone, a plurality of finger sections connected to the backbone to form a vertical cable channel, and a first pair of horizontal rails connected to the top end of the backbone and a second pair of horizontal rails connected to the bottom end of the backbone. The cable manager also includes a first cross brace connected to the first pair of horizontal rails and a second cross brace connected to the second pair of horizontal rails, and a door hingedly connected to the first and second cross braces. Each cross brace includes a mounting surface having a plurality of guide surfaces and an alignment aid protruding from the mounting surface and extending beyond a horizontal axis extending between the guide surfaces. The door includes a pair of latches connected to a hinge pin through a pair of windows, and a spring connected to the hinge pin and the pair of latches.

Abstract: An in-ceiling cabling enclosure for supporting communications network equipment and cables interconnecting the network equipment including a front wall, a rear wall, and two side walls extending between the front wall and the rear wall creating a volume inside the enclosure. An access door assembly is pivotally connected to either the rear wall or the two side walls. An equipment mount plate is attached to an interior portion of the access door assembly, and opposed equipment mount rails are removably attached to the equipment mount plate. A cable slack management tray extends between the opposed equipment mount rails, and the slack management tray has a surface adapted to support and maintain the position and the contour of cable bundles located in the enclosure. A thermal management system is also disposed in the housing to provide efficient exhaust of hot air generated by active equipment in the enclosure to the space outside of the enclosure.

Abstract: A cable manager is disclosed. The cable manager includes a backbone, a plurality of finger sections connected to the backbone to form a vertical cable channel, and a first pair of horizontal rails connected to the top end of the backbone and a second pair of horizontal rails connected to the bottom end of the backbone. The cable manager also includes a first cross brace connected to the first pair of horizontal rails and a second cross brace connected to the second pair of horizontal rails, and a door hingedly connected to the first and second cross braces. Each cross brace includes a mounting surface having a plurality of guide surfaces and an alignment aid protruding from the mounting surface and extending beyond a horizontal axis extending between the guide surfaces. The door includes a pair of latches connected to a hinge pin through a pair of windows, and a spring connected to the hinge pin and the pair of latches.

Abstract: An in-ceiling cabling enclosure for supporting communications network equipment and cables interconnecting the network equipment including a front wall a rear wall and two side walls extending between the front wall and the rear wall creating a volume inside the enclosure. An access door assembly is pivotally connected to either the rear wall or the two side walls. The access door assembly pivots through an arc of ninety degrees between a first position opening the enclosure and a second position closing the enclosure. An equipment mount plate is attached to an interior portion of the access door assembly, and opposed equipment mount rails are removably attached to the equipment mount plate. The equipment mount rails are adapted to receive the network equipment and to secure the network equipment to the access door assembly.

Abstract: A laser unit, usable in a network interface unit (NIU), that includes a laser adapted to generate an optical signal having a wavelength, a temperature control system for establishing a temperature of the laser and a controller functionally connected to the temperature control system for setting the temperature, the controller configured to automatically vary the temperature between a high temperature and a low temperature different than the high temperature. Also an NIU and a system of NIU's including the laser and an associated method of controlling the laser.

Abstract: A cable manager is mounted to vertical rails of an enclosure. The cable manager includes a plurality of bend radius posts individually mounted to the enclosure. Each bend radius post includes a shaft and at least one removable retention tab positioned at one end of the shaft. The opposite end of the shaft is mounted to the vertical rail in the enclosure. The bend radius posts manage and protect the cables routed within the enclosure.

Abstract: A network interface unit includes an input for receiving downstream signals from an optical fiber, an optical pathway leading from the input, a laser connected to the optical pathway for transmitting upstream signals in a first wavelength band, and a receiver for receiving downstream signals in a second wavelength band that doesn't overlap with the first wavelength band. A first filter is provided for filtering signals in a third wavelength band from the optical pathway before signals in the third wavelength band reach the receiver, and a second filter is provided between the input and the laser for filtering signals in a fourth wavelength band from the optical pathway, the fourth wavelength band not overlapping with the first wavelength band or the third wavelength band, and an arrangement is also provided for preventing processing of the fourth wavelength band downstream of the second filter. Also a filtering method.

Abstract: A cable slack manager apparatus for use in a zone box comprises a base plate and two or more cable slack management members. The cable slack management members may be releasably secured to the base plate and may comprise at least two straight portions and a rounded portion positioned therebetween. The management members may be angled relative to a front edge of the base plate. A distance between slack management members and opposing sidewalls of the base plate may be progressively smaller for slack management members positioned closer to the front edge of the base plate. Various configurations are possible.

Abstract: An enclosure for housing fiber optic splices between a fiber optic distribution cable and fiber optic customer drop cables includes a first door providing access to a first area of the enclosure housing couplers for receiving terminals of customer drop cables. The enclosure also includes a second door providing access to a second area of the enclosure for accommodating slices in one or more distribution cables. The second area is not accessible via the first area.

Abstract: An enclosure for housing fiber optic splices between a fiber optic distribution cable and fiber optic customer drop cables includes a first door providing access to a first area of the enclosure housing couplers for receiving terminals of customer drop cables. The enclosure also includes a second door providing access to a second area of the enclosure for accommodating slices in one or more distribution cables. The second area is not accessible via the first area.

Abstract: A cable manager is mounted to vertical rails of an enclosure. The cable manager includes a plurality of bend radius posts individually mounted to the enclosure. Each bend radius post includes a shaft and at least one removable retention tab positioned at one end of the shaft. The opposite end of the shaft is mounted to the vertical rail in the enclosure. The bend radius posts manage and protect the cables routed within the enclosure.

Abstract: A cable slack manager apparatus for use in a zone box comprises a base plate and two or more cable slack management members. The cable slack management members may be releasably secured to the base plate and may comprise at least two straight portions and a rounded portion positioned therebetween. The management members may be angled relative to a front edge of the base plate. A distance between slack management members and opposing sidewalls of the base plate may be progressively smaller for slack management members positioned closer to the front edge of the base plate. Various configurations are possible.

Abstract: A communication network is operated by attenuating signal transmission on an upstream path between a cable modem and a cable modem termination system (CMTS) during a noise test interval. The attenuation on the upstream path is removed at times outside of the noise test interval.

Abstract: An assembly includes a first member having an inner surface and a second member having an outer surface. One of the two members has greater rigidity than the other member and at least one groove. The rigid member is partially received within the less rigid member and a coupling mechanism provides radially inward pressure to generate a seal between the inner surface of the first member and the outer surface of the second member. The groove includes an opening and a base each having a predetermined width. The predetermined width of the opening is generally less than the predetermined width of the base. The more rigid member may comprise an insert with a surrounding sleeve wherein the sleeve includes the grooves.

Abstract: A cable manager is disclosed. The cable manager includes a backbone, a plurality of finger sections connected to the backbone to form a vertical cable channel, and a first pair of horizontal rails connected to the top end of the backbone and a second pair of horizontal rails connected to the bottom end of the backbone. The cable manager also includes a first cross brace connected to the first pair of horizontal rails and a second cross brace connected to the second pair of horizontal rails, and a door hingedly connected to the first and second cross braces. Each cross brace includes a mounting surface having a plurality of guide surfaces and an alignment aid protruding from the mounting surface and extending beyond a horizontal axis extending between the guide surfaces. The door includes a pair of latches connected to a hinge pin through a pair of windows, and a spring connected to the hinge pin and the pair of latches.

Abstract: An occupant classification sense element is provided. The sense element has a body having a center portion, a first attachment portion connected to the center portion by a first flexible beam, and a second attachment portion connected to the center portion by a second flexible beam. First and second strain sensing elements are attached to the first flexible beam and third and fourth strain sensing elements are attached to the second flexible beam. The first, second, third and fourth strain sensing elements cooperate to produce an electrical signal indicative of a force deflecting the first and second flexible beams.