Ls Cable Ltd.

Ls Cable & System Ltd.

Jong-Seb Baeck

Soo-Gon Ok

Chan-Yong Park

Gi-Joon Nam

In-Ha Jung

Woo-Yong Dong

Sung-Su Jin

Young-Il Cho

Su-Jong Kim

Dong-Eun Lee

Disclosed is a terminal box for an optical fiber and power line composite cable. The terminal box includes a housing, a cable lead-in part provided at a side of the housing, a first intermediate connector provided in the housing, a second intermediate connector provided in the housing. The first intermediate connector and the second intermediate connector are provided on a base of the housing to have different heights.

Terminal box for optical fiber and power line composite cable

The present invention relates to an optical fiber and power line composite cable comprising a cable core comprising at least one power line unit including a conductor and an insulator surrounding the conductor and at least one optical fiber unit including an optical fiber and a tube accommodating the optical fiber, a protective metal layer surrounding the cable core, and having corrugations including corrugation peaks and corrugation valleys that are alternately formed and an outer coating layer surrounding the protective metal layer, wherein a relation shown by the following formula is satisfied D&#x3c;D&#x2266;Dassuming an external diameter of the cable core as D, an internal diameter of the corrugation peak as D, and an internal diameter of the corrugation valley as D.

Optical fiber and power line composite cable

In communication cable of high capacity, conductor of diameter d is coated by insulation material to form wire of diameter D, plural number of the wire are twisted by pitch p to form pairs, plural number of the pairs are twisted by collective pitch P. The communication cable of high capacity has sheath wrapping the pairs, and impedance (Z) of the wire is from 90 to 110, and, diameter (d) of the conductor is from 0.48 mm to 0.65 mm, and diameter (D) of wire is from 0.8 mm to 1.15 mm, and the pitch (p) is from 7 mm to 30 mm, and the collective pitch (P) is from 40 mm to 150 mm, and relative ratio of diameter of wires to diameter of conductor D/d is from 1.625 to 1.835.

Communication cable of high capacity

A connecting block includes a housing having a plurality of slots extending from an upper surface thereof to an inside thereof with intervals, a plurality of terminal pins installed in the slots, a dielectric cover made of an insulating resin and coupled to the housing to cover a side of the housing, and a coupling pin electrically contacted with a terminal pin of any one pair among terminal pins belonging to different terminal pin pairs and extending opposite to a terminal pin of the other pair. The coupling pin is molded in a body of the dielectric cover such that the insulating resin is interposed between the coupling pin and the terminal pin opposite to the coupling pin.

Connecting block improved in crosstalk-characteristics

In communication cable of high capacity according to present invention, conductor of diameter d is coated by insulation material to form wire of diameter D, plural number of said wire are twisted by pitch p to form pairs, plural number of said pairs are twisted by collective pitch P, and said communication cable of high capacity comprise sheath wrapping said pairs, and impedance (Z) of said wire is from 90 to 110, and, diameter (d) of said conductor is from 0.53 mm to 0.65 mm, and diameter (D) of wire is from 0.9 mm to 1.1 mm, and said pitch (p) is from 8 mm to 25 mm, and said collective pitch (P) is from 40 mm to 150 mm, and relative ratio of diameter of wires to diameter of conductor D/d is from 1.625 to 1.835. And, by impedance matching between equipment for data transmission, return loss of cable can be minimized, so high speed data transmission can be made.

In communication cable of high capacity according to present invention, conductor of diameter d is coated by insulation material to form wire of diameter D, plural number of said wire are twisted by pitch p to form pairs, plural number of said pairs are twisted by collective pitch P, and said communication cable of high capacity comprise sheath wrapping said pairs, and the diameter d of said conductor and diameter D of said wire and pitch p and collective pitch P and impedance of said wires are defined by function of compensation coefficient A (81&#x3c;A&#x3c;83) by dielectric constant of insulation member and magnetic permeability of conductor, compensation coefficient B (0.005&#x3c;B&#x3c;0.007) by pitch (p) and collective pitch (P). And, by impedance matching between impedance of wire and impedance of equipment for data transmission, return loss of cable can be minimized, so high speed data transmission can be made.

A separator for a communication cable includes a plurality of barriers formed in a radial direction so that at least two pair units, in each of which at least two insulation-coated wires are spirally twisted, are received in spaces formed by the barriers one by one so as to separate the pair units from each other. At least one of the barriers has a relatively greater thickness than the other barriers. Thus, a communication cable having the separator may prevent PSNEXT (Power Sum Near and Crosstalk) caused by interference between adjacent wires when a high frequency signal is transmitted through the wires.

Asymmetrical separator and communication cable having the same

A communication cable includes at least one twisted wire pair formed by twisting a plurality of insulation-coated wires; a sheath surrounding the twisted wire pair; and a protrusion formed on an outer surface of the sheath. This communication cable may prevent alien crosstalk particularly at high-speed transmission so that transmission characteristics of the communication cable may be stably kept.

Growing community of inventors

Daegu, South Korea

Jong-Seb Baeck