SK500432021A3 - Universal hybrid teleinformatics cable for DATA-OPTIC-POWER data transmission - Google Patents

Abstract

The universal hybrid teleinformatics cable for data transmission DATA-OPTIC-POWER is characterized by four twisted pairs of insulated copper cores, which form the module of electrical data transmission DATA, and between the four outer recesses of the package of this module are placed two separate single-mode or multimode optical fibers the optical paths of the transmission module and the OPTIC simple monitoring element and two separate supply copper insulated cores of the POWER module, and above them are placed threads for tearing the shielding foil and outer coating made of Low Smoke Zero Halogen (LSOH) or polyethylene PE material, or made of polyvinyl chloride PVC.

Description

Field of technology

The subject of the invention is a universal multifunctional hybrid teleinformatics data transmission cable with integrated DATA-OPTIC-POWER supply cores, which consists of an electrical data module DATA with copper cores, an optical transmission module OPTIC with optical fibers with a simple monitoring function and an electrical module POWER with insulated copper cores for powering transmission equipment. The optical module allows at least two-way stand-alone communication and, if necessary, continuous monitoring of the cable route and easy identification of the ends of the cables serving as the connection. The cable is intended for use both in indoor installations and as an external cable. It can be laid in places with a significant concentration of cable routes, for the implementation of integrated indoor installations, both horizontal and vertical, in teleinformatics networks with the function of simple optical path monitoring and its own power supply of transmission equipment.

Teleinformatics cables provide a way for a large amount of digital information to pass through, using many pairs of twisted wires that are isolated from each other. These cables are usually installed in bundles laid directly in vertical and horizontal cable ladders or cable trays.

Prior art

Previously known teleinformatics and telecommunication data transmission cables, including those for indoor use, contain pairs of cores of copper wires covered with polyethylene insulation and twisted together. In category 6 and 6A teleinformatics cables, pairs of insulated copper cores may be separated by a transverse cross-separator of different shapes, most often regular rectangular or triangular. Thus placed between four arms of equal cross-separator length, the four pairs of insulated copper cores of the transmission medium may be wrapped individually or together with a shielding foil forming their circular ring cover, under which a ground wire is placed next to one of the four pairs of cores. is in electrical contact with the screens, and all these elements are surrounded by an outer sheath made of a thermoplastic material adjacent to this sheath, usually free of chlorine compounds and low-smoke plastic (LSOH), or in the case of outer cables with polyethylene (PE) a UV-resistant sheath, the core of such a cable being filled with a water-blocking mixture ensuring longitudinal watertightness, for example a hydrophobic gel.

There are also teleinformatics cables for data transmission covered with a PVC outer sheath for indoor use.

The ends of the teleinformatics cables are usually routed in switchboards, panels, shelves or sockets, while the identification of the individual cables in the cable harness in the process of completing their installation is very difficult. This prolongs the installation process of these cables and creates the risk of a fault in their connections, which in turn makes their operation and troubleshooting more difficult. The ends of these cables require their permanent marking and the missing identification label of the cable or its loss means that it is necessary to follow the route again and find the other end of the correct cable.

It is known from JP2005166317A an optical cable having four pairs of spirally twisted insulated electric cables and placed between two pairs of these wires, also an insulated optical fiber conductor which is shielded adjacent thereto by a screen covered by an outer sheath. The disadvantage of this cable is that it is possible to interrupt the simple tracking fiber (optical fiber) during the placement of the screen as well as the cable installation process.

Polish patent application P.416373 also discloses a hybrid teleinformatics data transmission cable, which consists of a five-arm star-shaped separator made of polyethylene or polypropylene, placed between the 4 arms of this separator by pairs of copper cores with polyethylene insulation and a shielded foil with a copper earth wire as well as from the outer sheath of the thermoplastic material attached to this screen. This cable is characterized in that in the axis of symmetry of its separator and along its entire length, the information carrier of simple transmission path monitoring, made of optical fiber, is placed. In addition, an optical transmission module is located between one pair of arms of this separator, and between the other four pairs of these arms, there are pairs of copper wires with polymer insulation.

The disadvantages of these known teleinformatics hybrid cable designs with or without a splitter are the difficulty in achieving the required electrical module transmission parameters for categories 5e, 6 and 6A or higher, maintaining the required mechanical stress sensitive fiber attenuation as well as the lack of integrated separate power supply cables. cores for transmission equipment. Besides that

SK 50043-2021 A3 the use of only one optical fiber is a limitation to create a reliable, separate, two-way optical transmission. The protection of the optical fiber in the form of a solid secondary coating is also often not sufficient for the mechanical protection of the fiber.

The essence of the invention

The purpose of the invention is to eliminate the above-mentioned disadvantages of the hitherto known teleinformatics cables by developing a new integrated multifunctional hybrid cable construction which meets the requirements for cable type, bandwidth and speed for categories Cat. 5 (class D), Cat. 5e (class DA), Cat. 6 (class E), Cat. 6A with digital transmission of electrical signals as well as two-way optical transmission over optical cables, with the additional function of simple optical fiber tracking, i. j. complete, fast and easy identification of the cable along its entire length at both ends by means of an illuminated optical fiber and will enable simultaneous power supply of transmission devices.

The essence of the hybrid teleinformatics cable for data transmission DATA-OPTIC-POWER according to the invention is that this cable has twisted on or without a separator 4 pairs of insulated copper cores, which form a DATA module of category 5, 5e, 6, 6A, while between pairs in The 4 free outdoor spaces are two single-mode or multi-mode optical paths as well as two insulated copper supply conductors and above them there is a grounding wire, a shielding foil and an outer sheath. In this cable, the OPTIC fiber optic components and the POWER supply are arranged in a spiral around the DATA module circuit with the same twist jump length as the DATA module. Such an arrangement of the OPTIC and POWER modules makes it possible to achieve a certain excess of the length of these elements in relation to the linear length of the cable, thus guaranteeing the flexibility of the cable and the required range of allowable load on the longitudinal fiber optic module.

It is advantageous if the optical fiber paths of the OPTIC module have outer diameters in the range from 1.2 to 2.8 mm and are mechanically secured with a high-strength aramid yarn sheath and have their own coating made of LSOH, (Low Smoke Zero Halogen).

It is also advantageous if the copper cores of the POWER module have a diameter of more than 0.8 mm and a diameter for insulation of no more than 2.0 mm.

It is also advantageous if, in the case of a DATA module design with a 4-arm separator, the tops of the separator have a "T or" Y shape to support the structure of the OPTIC and POWER module.

It is advantageous if the separator is made of low density polyethylene (LDPE) or polypropylene (PP) or high density polyethylene (HDPE) or polyethylene (PE) and if the cable sheath itself is made of halogen-free LSOH, (Low Smoke Zero Halogen) ) or made of high density polyethylene (HDPE).

Overview of figures in the drawings

The subject matter of the invention is illustrated in FIG. 1 shows Hybrid cable DATA-OPTIC-POWER H -F / FTP Cat.6 + 2xSMXl, 2 + 2xCu 0,6 - module DATA Cat. 6 with separator 8, where: 1 - optical fibers SMX1,2 (OPTIC module), 2 - core shield, 3 - shielded pair of cores, 4 - earth conductor, 5 - insulated supply line (POWER module), 6 - LSOH outer sheath , 7 - thread to tear the sheath, 8- separator.

FIG. 2 shows Hybrid cable DATA-OPTIC-POWER H -F / FTP Cat.6 + 2xSMXl, 2 + 2xCu 0,6 - DATA module without separator, which show a round hybrid teleinformatics cable for data transmission in cross section, where: 1 - optical fibers SMX1,2 (OPTIC module), 2

- core shield, 3 - shielded pair of cores, 4 - earth conductor, 5 - insulated supply line (POWER module), 6 - LSOH outer sheath, 7 - sheath rupture thread.

The hybrid teleinformatics cable according to the invention has a centrally located monolithic separator 8 made of low density polyethylene (LDPE), consisting of four arms with a thickness of g = 0.5 mm, between two opposite pairs of arms there are two twisted copper cores of type AWG- 23 with their polyethylene insulation of the electrical transmission medium DATA, t. j. together four pairs of these insulated copper cores forming a twisted pair, in two opposite outer free depressions of the twisted pair are separated two optical paths 1 multimode OPTIC type 50/125/250 according to ITU-T G.651 in tight tubes with outer diameter φ = 0 , 9 mm, longitudinally reinforced with aramid fiber and sheathed with integrated sheath LSOH with a diameter of 1.2 mm, in the two remaining opposite outer free recesses of the twisted pair are placed copper cores 5 soft single-wire POWER with a diameter of 0.6 mm and with

SK 50043-2021 A3 loop resistance 126.37 Ω / km in a uniform polyethylene insulation with a thickness of 0.3 mm and with an outer diameter of 1.2 mm blue and brown, the whole is wrapped in a shielding foil 2, under which there is also a longitudinal tinned copper ground wire 4, which is in electrical contact with the screen, and 1 or 2 threads 7 are placed above the screen along this cable to rupture the outer sheath 6 during the installation process and to safely separate it from the optical path structure, and in addition the outer sheath 6 is made of halogen-free LSOH type material. In this cable, one of the optical paths can also function as a simple tracking element.

Analogous technical properties were obtained by producing a separator 8, information carriers

- separate optical fibers of the optical paths and the outer sheath of the teleinformatics cable with the construction / structure shown in FIG. 1, also made of other materials, when:

- the optical modules contain single-mode optical fibers G652.D, and the outer sheath is made of high-density polyethylene (HDPE), the preferred value of which is 0,955 g / cm3, or

- the separate optical paths were made of single-mode fibers G657.A2, while the outer coating was made of halogen-free LSOH material (Low Smoke Zero Halogen) or when

- the optical paths were made of polymethyl methacrylate (PMMA) type HPCE 200/230 with an outer diameter φ = 0.23 mm and the outer coating is made of halogen-free material (LSOH).

In addition, taking into account the simplification of the identification of both optical paths 1 OPTIC. made of single-mode or multi-mode optical fiber, their tubes and coatings can be made in different colors. preferably for fibers and tubes red and green, and white and yellow for coatings, while the use of optical fibers in optical paths with larger core diameters than single-mode fibers allows a simple tracking function and facilitates the introduction of a light beam into the optical fiber. Labels identifying the path and type of optical fiber used may be printed on the optical path coatings. On the other hand, the cores intended for power supply (5) in teleinformatics networks have their distinguishing colors of insulation, preferably blue and brown.

Tests and laboratory tests of teleinformatics cables with the same structure as described above, but with different materials, optical paths (information carriers) and outer sleeve sheath (6) of the given cable, proved their full functionality in the field of electrical transmission, optical and power supply. in Category 5e cables. 6 and 6A.

Claims (9)

PATENT CLAIMS A universal hybrid teleinformatics data transmission cable DATA-OPTIC-POWER (Fig. 1) consisting of a monolithic four-arm separator (8) made of polyethylene or polypropylene as well as pairs of copper cores (3) placed between and along each of the two arms of this two twisted-pair optical power cables (5) and two single-mode optical fiber cables (1) in a secondary sheath with reinforcement and in a coating, forming two two independent optical transmission paths protecting the thus formed integrated three-function cable core of the shielding foil (2) with a tinned copper earth wire (4) placed below it and an outer outer sheath (6) made of plastic, characterized in that it has four arms forming a monolithic separator (8), formed between the inner surfaces of four arms, between which are two insulated copper cores - pairs (3), while outside there are two optical paths (1) single-mode or multi-mode and two insulated copper cores (5) in the recesses of the twisted pair casing between the pairs and a ground wire ( 4) and threads (7) for tearing the outer sheath (6), which protects the cable core thus formed. 2. Universal hybrid teleinformatics cable for data transmission DATA-OPTIC-POWER (Fig. 2) consisting of eight insulated copper cores, twisted into four independent pairs (3) twisted together, thus forming a twisted pair of copper cores and from placed in the four available 90 ° recesses of the package of the thus formed twisted pair of two insulated copper supply cores (5) as well as two single-mode optical fiber cables (1) with optical fibers in the secondary sheath, with reinforcement and in the coating, forming two independent optical transmission paths, protecting the thus formed integrated three-function cable core of the shielding foil (2) with a tinned copper grounding wire (4) placed below it and an adjacent outer sheath (6) made of plastic, characterized in that two twisted copper cores - pairs (3) are twisted with their insulation to form a twisted pair, while outside they are in the recesses of the twisted pair casing between the two optical fibers (1), single-mode or multi-mode and two insulated copper cores (5) are placed over them, and above them are threads (7) for tearing the outer sheath (6), which protects the cable core thus formed. Cable according to claim 1, characterized in that its separator (8) has, in the case of a DATA module of categories 6 and 6A, arms with a thickness g = 0.40 - 0.60 mm terminated in a "Y or" T or semicircle or oval or mallet or heart. Cable according to Claim 1, characterized in that its multi-arm separator (8) is made of low-density polyethylene (LDPE) or polypropylene (PP) or high-density polyethylene (HDPE) or medium-density polyethylene (MDPE), or polyethylene (PE) including expanded polyethylene (PE) or expanded polypropylene (PP). Cable according to claims 1, 2 and 3, characterized in that its optical tests (1) have a diameter φ = 0.23-0.90 mm. Cable according to Claim 1, characterized in that its optical paths (1) are provided with single-mode or multimode optical fibers of the 50/125/250 or 62.5 / 125/250 type or with plastic optical fibers made of polymethyl methacrylate (PMMA). Cable according to Claim 1 and 2, characterized in that its outer sheath (3) is made of low-smoke halogen-free material (LSOH) (Low Smoke Zero Halogen). Cable according to Claim 1 and 2, characterized in that its outer sheath (3) is made of high-density polyethylene (HDPE) or medium-density polyethylene (MDPE) or low-density polyethylene (LDPE) or linear low-density (LLDPE). Cable according to Claim 1 and 2, characterized in that the OPTIC module is made of optical cables (1) with an outer diameter of 2.0 mm and the POWER module is made of copper wires (5) with a cross section of 0.5 mm ² with an outer diameter of 2.0 mm in diameter, while the covers and insulations of these modules are made of low smoke halogen-free material (LSOH).