Abstract: Optical equipment for 1G-EPON, 10G-EPON, and CWDM services are joined together using a novel combination of optical power splitters and multiplexers. This combination of splitters and multiplexers can be disposed in a single housing, which reduces the size of the combination and improves performance, since jumpers between multiple, separately packaged, optical components can be avoided. One example of the inventive techniques and circuits disclosed herein is a combiner/separator circuit for combining and separating 1G-EPON and 10G-EPON signals. In the example application detailed herein, where EPON equipment is combined with CWDM equipment, an important advantage of this optical circuit is its ability to provide return wavelength isolation for EPON systems that have separate ports for 1G and 10G services.

Abstract: A bracket for securing an end of a fiber optic cable, having at least one strength member, to a termination point includes a base portion at a first end of the bracket, a retention feature at a second end of the bracket that is opposite to the first end, and adapted to receive and at least partially surround an exposed end of the at least one strength member, and an elongated portion extending from the base portion to the retention feature. A first flat surface, on the base portion or the elongated portion, has at least one opening adapted to receive a fastener for mounting the strength member bracket to a first mounting surface on the termination point. A first flange is disposed along the elongated portion, and adapted to receive a tether for securing a jacketed portion of the fiber optic cable to the bracket.

Abstract: Optical equipment for 1G-EPON, 10G-EPON, and CWDM services are joined together using a novel combination of optical power splitters and multiplexers. This combination of splitters and multiplexers can be disposed in a single housing, which reduces the size of the combination and improves performance, since jumpers between multiple, separately packaged, optical components can be avoided. One example of the inventive techniques and circuits disclosed herein is a combiner/separator circuit for combining and separating 1G-EPON and 10G-EPON signals. In the example application detailed herein, where EPON equipment is combined with CWDM equipment, an important advantage of this optical circuit is its ability to provide return wavelength isolation for EPON systems that have separate ports for 1G and 10G services.

Abstract: Enclosures for supporting fiber optic hardware or managing fiber optic cables are disclosed. An example enclosure includes a bulkhead panel extending outward from and extending across a surface of the enclosure. The bulkhead panel includes at least two mounting flange portions rigidly attached to or integrally formed with the floor, each mounting flange comprising openings adapted to receive a bulkhead adapter plate fastener for securing a bulkhead adapter plate. The bulkhead further includes a knock-out panel portion interposed between and integrally formed with two of the mounting flange portions. This knock-out panel portion is joined to (i) the surface via one or more frangible web members, or (ii) to each of the two mounting flange portions with one or more frangible web members, or (iii) both, where the one or more frangible web members are dimensioned to permit removal of the knock-out panel portion by an installer-supplied force or blow.

Abstract: A modular assembly for supporting fiber optic splices includes a tray, cradle, and splice holder. The tray includes a floor, a depression in the floor, and a tab that extends outward from a depression sidewall into the depression. The cradle includes a base configured to be seated in the depression. The cradle base has a first face positioned away from a bottom of the depression and an opposite second face positioned towards the depression bottom when the cradle base is seated in the depression. The cradle base also includes a shelf recessed into the first face at the first side of the cradle base, and positioned between the depression bottom and the tab when the cradle base is seated in the depression. A splice holder is mounted to the first face of the cradle base and defines a plurality of fiber optic splice slots positioned over the depression.

Abstract: A modular assembly for supporting fiber optic splices includes a tray, cradle, and splice holder. A splice holder is mounted to the first face of the cradle base and defines a plurality of fiber optic splice slots positioned over the depression. The splice holder has parallel upright members extending from a splice holder base to define the slots between the members. The members have internal sidewalls incorporating at least one pair of grooves defining passages in which fiber splices fit. The passages have a tapered shape to accommodate varying sizes of fiber splices, and the holder utilizes alternating orientations for the passages to flexibly fit fiber splices therein. The members define an internal cavity with thinned end walls and a bubble formation at a face of the member that add to the flexibility of the members.

Abstract: A modular assembly for supporting fiber optic splices includes a tray, cradle, and splice holder. The tray includes a floor, a depression in the floor, and a tab that extends outward from a depression sidewall into the depression. The cradle includes a base configured to be seated in the depression. The cradle base has a first face positioned away from a bottom of the depression and an opposite second face positioned towards the depression bottom when the cradle base is seated in the depression. The cradle base also includes a shelf recessed into the first face at the first side of the cradle base, and positioned between the depression bottom and the tab when the cradle base is seated in the depression. A splice holder is mounted to the first face of the cradle base and defines a plurality of fiber optic splice slots positioned over the depression.

Abstract: High-definition multimedia interface (HDMI) plugs are modified to include one or more retention features that increase the force needed to extract a fully inserted HDMI plug from a compatible mating receptacle. In several embodiments, a high-definition multimedia interface (HDMI) plug includes a connector body having a mating end configured for insertion in a longitudinal direction into a mating HDMI receptacle and having a slot-shaped opening along at least one wall of the connector body, extending in the longitudinal direction. A movable tab is biased to extend outward from the slot-shaped opening in a first position, when unconstrained by the mating HDMI receptacle, and configured to retreat into a second position, substantially within said opening, when longitudinally engaged by a leading edge of the mating HDMI receptacle during insertion of the connector body. Additional retention features and mating HDMI receptacles are also described.

Abstract: A high-definition multimedia interface (HDMI) plug on an HDMI cable assembly includes an indicator light that is illuminated only when both ends of the cable are plugged into a video source and a video sink. Embodiments include an HDMI plug that comprises a connector body having a mating end configured for insertion into a mating HDMI receptacle and containing electrical pins configured according to HDMI specifications, the pins including a +5V Power pin, a Ground pin, and a Hot Plug Detect pin. The HDMI plug further comprises an indicator circuit that includes a light-emitting diode and a transistor switch in series with the light emitting-diode, wherein the light-emitting diode and transistor switch are coupled to the +5V Power pin, Ground pin, and Hot Plug Detect pin so that the light-emitting diode is activated only when both the +5V Power pin and Hot Plug Detect pin are energized.

Abstract: High-definition multimedia interface (HDMI) plugs are modified to include one or more retention features that increase the force needed to extract a fully inserted HDMI plug from a compatible mating receptacle. In several embodiments, a high-definition multimedia interface (HDMI) plug includes a connector body having a mating end configured for insertion in a longitudinal direction into a mating HDMI receptacle and having a slot-shaped opening along at least one wall of the connector body, extending in the longitudinal direction. A movable tab is biased to extend outward from the slot-shaped opening in a first position, when unconstrained by the mating HDMI receptacle, and configured to retreat into a second position, substantially within said opening, when longitudinally engaged by a leading edge of the mating HDMI receptacle during insertion of the connector body. Additional retention features and mating HDMI receptacles are also described.