Abstract: A line pair testing and fault diagnostic apparatus implementing three-terminal measurement techniques using a multiple frequency source waveform transmission to propagate a reflected waveform. The apparatus implements a microcomputer circuit executing a program. The program has frequency domain analysis algorithms to process the reflected waveform to provide a craftsperson with the electrical characteristic data of a line pair to inform the craftsperson the existence of a line pair fault and the location of the fault in the line pair. The apparatus implements relays for switching between several diagnostics circuits within the apparatus for providing the craftsperson with numerous methods and techniques for troubleshooting a line pair.

Abstract: An aerial enclosure for a terminal block and method for installing the terminal block and a cable connected thereto within the enclosure. The enclosure includes a housing that defines an interior region adapted to contain the terminal block. The housing has an open front face and includes a rear wall, and a number of side walls that border the interior region. A cover is connected to the housing and is moveable to either cover or expose the interior region. One side wall of the housing includes a terminal block opening sized to permit insertion therethrough of the terminal block and cable. An entrance cap is adapted to cover the terminal block opening and defines a through passage sized to permit the cable to extend through the through passage. During manufacture, the entrance cap can be installed onto the cable before or after the cable is connected to the terminal block. The entrance cap is attached to the enclosure so that the terminal block opening is covered by the entrance cap.

Abstract: An enclosure for a terminal block that provides a telecommunications transmission connection. The enclosure includes a housing that defines an interior region adapted to support a terminal block. The housing has an open front face and includes a rear wall, and a number of side walls that border the interior region. A cover is attached to one side wall of the housing for covering the interior region. The cover is moveable to a partially open, a widely open, or a fully open position to allow access to the interior region of the housing. One side wall of the housing includes a socket member that defines a groove. A hinge structure is rotatably moveable within the socket member for attaching the cover to a side wall of the housing. Biasing means are seated within the groove and interposed between the hinge structure and socket member.

Abstract: An enclosure for interconnecting multiple branch connections from a trunk communications carrier. A housing supports a terminal block having connections for multiple branch cables and includes an opening for routing signal carrying cable into the housing from the trunk communications carrier. The housing also has multiple spaced apart access openings that extend along one wall of said housing to enable branch cables to be routed away from the housing from the terminal connector. A grommet assembly has a grommet strip defining multiple exit regions spaced along the grommet strip for alignment with the access openings in said one wall of the housing when secured to the housing.

Abstract: An aerial enclosure for use in distributing above ground fiber optic communications signals from a signal source such as a central office to a customer site. The enclosure has first and second enclosure segments that can be separated to expose an enclosure interior where a termination panel is mounted that includes a row of terminal contact pairs to which copper cables are connected for routing conventional telecommunications signals away from the enclosure interior to a customer site. The enclosure includes a communications subsystem mounted within the enclosure having a first fiber optic portion for routing outgoing light signals to an optical network unit outside the enclosure for conversion to electrical signals. A copper portion of the communications subsystem incoming telecommunications signals back into the enclosure where they are redistributed from one or more of the plurality of terminal contact pairs by copper cables to one or more customer sites.

Abstract: An environmentally sealed enclosure for encapsulating a splice between cable segments. Cable gripping apparatus in the housing limits movement of the cable relative to the housing and includes a bonding portion to prevent separation of sealant from a cable when a cable is positioned to extend through the entrance into the housing. Walls of top and bottom shell segments are configured to be locked together for forming an enclosure containing encapsulant for protecting the splice.

Abstract: A terminal housing having a entry port formed in one wall thereof in combination with a folded grommet sheet having criss-crossing slits retained in sealing relation with the wall of the housing by a grommet plate. The housing is of unitary construction and has a door portion secured to a body portion by a living hinge and is equipped with spring elements for urging the door portion of the housing toward open and closed positions. The housing is suited for universal mounting on a strand, cable, wall and post or pole. The terminal housing is configured to contain terminal blocks for splices or dropwire installations.

Abstract: An end seal assembly for an aerial closure for protecting an electrical or optical cable splice. The end seal assembly includes a pair of end seal shell segments connectable to an end of the housing of the aerial closure. An elastomeric end seal has a unitary body including a pair of end seal elements hingedly secured together and provided with cutting guides to aid a lineman in forming cuts in the respective seal elements extending in opposite directions. Each seal element is deformable for mounting on a cable and pins adjacent each side of a cut formed in each seal element are received in sockets on the adjacent seal element to prevent deformation of the end seal after it has been secured to a cable and positioned in the end seal shells in the aerial closure housing.

Abstract: A water-proof housing for a telecommunications terminal. The housing has a body portion and a hinged closure portion, hinge elements on the body portion and on the closure portion being configured to permit linear sliding movement of the closure longitudinally of an axis to a predetermined position and pivotal movement of the closure portion relative to the body portion when the closure portion is in a predetermined position relative to the body portion. A tongue formed by spaced tabs, one of the tabs being longer than the other tabs is sliceable through a guideway in a channel member on the closure portion of the housing such that when the long tab is aligned with a corresponding opening in the channel member, the closure portion of the housing can be rotated about the axis.

Abstract: Disclosed is a self-contained battery powered remotely controlled strapping and interconnection device for providing various selected interconnections and terminations of telephone lines or line pairs to which it is attached in order to establish testing configurations comprising a plurality of multi-contact latching relays selectably operable through a plurality of shift register devices under the control of an on-board processor responsive to dual tone multi-frequency instructional command signals remotely applied to a pair of lines. Plug-in expansion modules and battery charger modules are provided.

Abstract: A system and method are provided wherein binary communications signals are received, and sequences of values of like types of these, such as positive ones, positive zeroes, negative ones, and negative zeroes, are observed. Responsive to a sequence of like-type signals, a reference potential is driven generally in the direction of value of these signals, and most responsively in the direction of the greatest signal degradation. A reference potential for each type is then stored, and the one of these having the most degraded amplitude is selected, and an indication of the percentile of its degradation is provided.

Abstract: An environmentally sealed enclosure for encapsulating an in-line splice between cable segments. Cable gripping apparatus in the housing limits movement of the cable relative to the housing to prevent separation of sealant from a cable when a cable is positioned to extend through the entrance into the housing. Walls of top and bottom shell segments are configured to be locked together for forming an enclosure containing encapsulant for protecting the splice.

Abstract: An aerial closure for protecting an electrical or optical cable splice from weathering forces is provided. The aerial closure has a central header portion and wing-like housing segments that may enclose a cable splice. The wing-like housing segments may be raised, providing access to the cable splice from either side of the cable splice and below the cable splice. Each end of the aerial closure has a seal assembly for sealingly engaging the ends of the cable segments whereby the ends of the aerial closure are also protected from the weathering elements. The seal assembly has concentrically circular and corrugated features thereon so that an appropriately sized hole may be cut into the seal assembly for any standard cable size. The corrugated features allow marking the standard cable sized alternatingly on either side of the seal assembly so that it is easier to find and cut the correct sized hole for the cable. The housing segments may be locked with a simple latch, a nut and bolt assembly, or both.

Abstract: Disclosed is a telephone line testing device comprising: clip leads for connecting the device to "ring," "tip" and external ground lines of the telephone line to be tested. Terminal pads make "ring" and "tip" connections to a craft telephone and a first testing circuit connectable to receive DC signals from the "ring" and the "tip" lines to provide electrical signals indicative of the magnitude of direct current available from the lines. Another testing circuit is connectable to receive AC signals from the "ring" and the "tip" lines to provide electrical signals indicative of the signal loss of the lines. A third testing circuit is connectable to receive AC signals selectably either from the "tip" and the "ring" connections or from the "tip" and the external ground connections comprising a filter and amplifier to receive and treat the AC signals and to apply the treated signals to the input of the second testing circuit.

Abstract: A closure for an electric cable splice includes first and second generally rectangular shell segments having side walls and end walls constructed and arranged to be telescopically secured together. A threaded fastener is connectable to extend through the first and second shell segments and is adapted to urge the shell segments together with sufficient force to extrude sealant in the first and second shell segments through entrance openings to encapsulate ends of spliced cables to provide a moistureproof seal between the spliced cables and the end wall adjacent the entrance openings.