Abstract:
A method and system connects multiple cores within one fiber, e.g., a multi-core fiber (MCF), to multiple fibers with single-cores. The single-core fibers can then be terminated by traditional envelopes, such as a single core LC envelope. A connector holds the single-core fibers into a pattern that matches a pattern of all, or a sub group, of the individual cores of the MCF. The single-core fibers may all be terminated to individual connectors to form a fanout or breakout cable. Alternatively, the single-core fibers may extend to another connector wherein the single-core fibers are regrouped into a pattern to mate with the cores of another MCF, hence forming a jumper. One or more of the single core fibers may be terminated along the length of the jumper to form a jumper with one or more tap accesses.
Abstract:
Fiber optic communications systems are provided that include an optical transmission source that is configured to transmit an optical signal having a first wavelength onto a multi-mode optical transmission path, an optical mode field converter that is optically coupled to the multi-mode optical transmission path, and an optical transmission medium that is optically coupled to the optical mode field converter. The multi-mode optical transmission path has a first cross-sectional area and the optical transmission medium has a second cross-sectional area that is smaller than the first cross-sectional area. The optical transmission medium is a few-mode transmission medium for the optical signal having the first wavelength.
Abstract:
A cooling module for cooling at least two server modules that are configured to house a plurality of servers, the cooling module including a housing having an interior containing air, an intake into the housing, an outlet from the housing, at least one fan configured to move the air from the intake to the outlet and at least one sprayer configured to spray a mist into the air in the interior for evaporative cooling of the interior. Also a system formed of the cooling module, first and second server modules and a plenum connecting the outlet of the cooling module and intakes of the first and second server modules.
Abstract:
A cable retaining ring (10) includes a base (16) having at least one mounting opening or at least one mounting projection for connecting the cable retaining ring to a cable support tray (92), an elongate interior defining a cable retention region, a gap (40) through the ring for allowing a cable to be placed into or removed from the interior, and a slide (42) mounted on the ring and shiftable between a first position substantially blocking the gap to prevent the cable from being placed into or removed from the interior and a second position unblocking the gap.
Abstract:
A breakout module includes a substantially cylindrical body having a first end face and an opposite, second end face. A multi-fiber port, like an MPO port, is provided within the first end face, or a cord having a multi-fiber connector, like an MPO connector, attached to its distal end exits the first end face. Plural duplex fiber ports are disposed within the second end face. A breakout cable is disposed within the body and connects the plural duplex fiber ports of the second end face to the multi-fiber port or connector associated with the first end face.
Abstract:
An antenna having a passive feed network in one band, and an active radio network in an adjacent band, is provided herein. The antenna includes a plurality of radiating elements arranged in an array. The radiating elements are dimensioned to transmit and receive RF signals, for example, in a band of 790 MHz to 960 MHz. The antenna includes a plurality of diplexers having a first port, a second port and a third port. The first port of each diplexer coupled to at least one radiating element. The diplexer has a first filter coupling the first port to the second port and a second filter coupling the first port to the third port. In one example, involving the GSM900 band, the first filter is a band pass filter having a pass band of 790-862 MHz and the second filter is a band pass filter having a pass band of 880-960 MHz. A passive feed network includes a phase shifter, which is coupled to an input transmission line and a plurality of output transmission lines. Each of the output transmission lines may be coupled to one of the second ports of one of the diplexers. An active feed network comprising a plurality of active radios is also included. An active radio is coupled to each of the third ports of the plurality of diplexers.
Abstract:
A combination includes: (a) a communications module including: a housing; a printed wiring board mounted within the housing; a plurality of RJ-45 jacks mounted on the printed wiring board and accessible from one side of the housing; and a single module connector mounted to the printed wiring board and electrically connected to the RJ-45 jacks, connector being accessible from a second side of the housing; and (b) a cable-connector assembly including: a cable comprising a plurality of subunits, each of the subunits comprising a jacket and a plurality of twisted pairs of conductors positioned within the jacket; and a single cable connector mounted to the printed circuit board and electrically connected to the conductors of the cable subunits. The module connector is attached to the cable connector.
Abstract:
A splice holder (10) includes a base member (12) and a plurality (26) of high wall pairs (28) on top of the base member (12) each having first and second wall members (30) spaced by a first distance, and adjacent ones of the high wall pairs (28) are spaced by a distance less than the first distance. A first plurality (38) of low wall pairs (40) project from the base member (12) on one side of the high wall pairs, and a second plurality (54) of low wall pairs (56) project from the base member (12) on the other side. The first and second plurality (38, 54) of low wall pairs (40,56) are shorter than the high wall pairs (28). The splice holder (10) is configured to support a first level of splices running through the low wall pairs (40,56) and high wall pairs (28) in between and a second level of splices running through the high wall pair (28) and supported on top of two low wall pairs (40,56).
Abstract:
A genderless fiber optic connection system includes an MPO cable or cord having at least one genderless MPO connector (41) disposed at one end. The genderless MPO connector includes a housing (50) and a first genderless MPO ferrule (48) attached therein. A mating, front face (47) of the MPO ferrule includes an alignment pin (49) extending therefrom and an alignment hole (43) formed into the front face. Fiber ends (53) are located in one or more rows between the alignment pin and the alignment hole. The connection system may also include a genderless MPO port having a complementary alignment pin, alignment hole, and fiber ends for mating with the genderless MPO connector.
Abstract:
A connector (30) is to be attached to a coaxial cable (20) and includes a connector housing (31) having a cylindrical shape to be coupled to an outer conductor (22) of the coaxial cable (20). An insulator member (45) has a central opening therein and is rotatably received within the connector housing (31) to define a rotational joint therewith. A center contact (46) has a shaft portion (47) securely received within the central opening of the insulator member (45) and an open end portion (48) extending rearwardly from the shaft portion (47) to securely receive the inner conductor (24) therein.