JP2004048972A - Method for preventing crosstalk in communication cable and crosstalk preventing member and tool for communication cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crosstalk preventing member for communication cable which prevents crosstalk from occurring between the communication cables when a plurality of the communication cables are installed in a lump. <P>SOLUTION: The crosstalk preventing members 23, 25, and 27 for the communication cable are formed of plastic block bodies 29, 33, and 37. The block bodies 29, 33, and 37 are formed as columnar bodies each having a plurality of cable fitting grooves 41 on the circumferential surface in the circumferential direction. The crosstalk preventing members 23, 25, and 27 for communication cable are installed onto communication cables with appropriate intervals. The installation of the crosstalk preventing members 23, 25, and 27 for the communication cable is carried out by fitting the communication cables into the respective cable fitting grooves 41. When the communication cables are fit into the cable fitting grooves 41, the communication cables are twisted between the crosstalk preventing members 23, 25, and 27 for the communication cable. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a crosstalk prevention wiring method of a communication cable for preventing crosstalk from occurring between communication cables for computer communication and the like which are collectively wired, and a communication cable used for the crosstalk prevention wiring method of the communication cable. The present invention relates to a crosstalk prevention member for communication and a crosstalk prevention device for communication cables.
[0002]
[Prior art]
Crosstalk inside computer communication cables, which occurs with the speeding up of computer communications, can be caused by using a cable with a shielding layer, such as a coaxial cable, or twisting each wire in the communication cable at a different pitch. It can be effectively prevented by using an appropriate method.
[0003]
[Problems to be solved by the invention]
However, if the communication speed of computer communication is dramatically increased, crosstalk (alien crosstalk) may occur between communication cables. If crosstalk occurs between communication cables, a communication failure such as a reduction in communication speed or interruption of communication is expected. It has been confirmed that such crosstalk between communication cables occurs when a plurality of communication cables are wired in a close / contact parallel state over a length of, for example, 10 m. It is important to wire so as not to be in close proximity and contact parallel over the range, but as the number of computers used in offices etc. increases and the number of communication cables increases, multiple In many cases, communication cables must be wired together.When multiple communication cables are wired together, all communication cables are routed long in close proximity and contact parallel, or adjacent communication cables are close together. Long wiring may occur in the contact parallel state.
[0004]
Therefore, an object of the present invention is to provide a crosstalk prevention wiring method for a communication cable that prevents crosstalk from occurring between a plurality of communication cables that are collectively wired. The present invention also provides a communication cable crosstalk prevention member and a communication cable crosstalk prevention device used in a communication cable crosstalk prevention wiring method for preventing crosstalk from occurring between a plurality of communication cables wired together. Aim.
[0005]
[Means for Solving the Problems]
In order to achieve this object, a method for preventing crosstalk of a communication cable according to the present invention is provided. A method of positioning and fixing each of the communication cables at least relatively at a plurality of positioning points along a direction in which the communication cables extend, wherein the arrangement of the communication cables at one of the positioning points is one of the one. The communication cables are wired so as to be different from the arrangement of the communication cables at the positioning location adjacent to the positioning location. The positioning part may be set on the floor or the like, or may be set on an appropriate part of the communication cable. By appropriately setting the arrangement difference of the communication cable between one positioning point and an adjacent positioning point, it is possible to effectively prevent the communication cable from extending long in a close and contact parallel state. As an arrangement difference mode of the communication cable, the arrangement of any two adjacent communication cables at one positioning point is the same as that of any two adjacent communication cables at the one positioning point and the adjacent positioning point. Anything different from the cable arrangement can be adopted. By arranging the communication cables in this manner, it is possible to effectively prevent two communication cables from being wired adjacently in a parallel state between the set positioning points. More preferably, the arrangement of any two communication cables at any one of the positioning locations is also the same as the arrangement of any two communication cables at any of the positioning locations adjacent to the one positioning location. Sequence. Alternatively, a set of any two adjacent communication cables at one location is different from a set of two adjacent communication cables at the location adjacent to the one location. Wire the communication cable. Further, as an arrangement difference mode of the communication cables, a configuration is adopted in which any two communication cables are in a non-parallel state (twisted state) between one positioning point and an adjacent positioning point. be able to.
[0006]
Further, the communication cable crosstalk prevention member according to the present invention is a communication cable crosstalk prevention wiring method for preventing crosstalk from occurring between a plurality of communication cables that are collectively wired, wherein the communication cable extends. The communication cables are positioned and fixed at least relatively at a plurality of positioning locations along the direction, and the arrangement of the communication cables at one of the positioning locations is at an adjacent one of the positioning locations. A communication cable crosstalk prevention member used for a communication cable crosstalk prevention wiring method of laying the communication cable so as to be different from the communication cable arrangement, wherein the cable fitting groove is provided. Each of the communication cables is configured to include a plurality of block bodies, and each of the communication cables is provided in the cable fitting groove. Are those least relatively positioned and secured is attached fitted. The communication cable crosstalk prevention member may be fixed to the floor or the like in some cases, or may be attached to only the communication cable without being fixed to the floor or the like. The block body can be configured as a columnar body or a disk-like body in which a plurality of cable fitting grooves are formed on the outer peripheral surface at intervals in the circumferential direction. Such a block body should be relatively short in length, and the diameter of the block body can be as small as, for example, such that communication cables can be bundled or bundled. In this case, the communication cable is wound around each communication cable fitted in the cable fitting groove so that the communication cable does not fall out of the cable fitting groove, and the communication cable is fixed to the block body. It is advisable to use a possible fixing tape.
[0007]
The block body may be configured as a rectangular wave-shaped body having a plurality of cable fitting grooves formed at intervals in the width direction. Such a configuration of the block body is suitable for a case where the communication cable group is distributed and wired in a direction orthogonal to the length direction.
[0008]
Furthermore, the crosstalk prevention device for a communication cable according to the present invention is a crosstalk prevention wiring method for a communication cable for preventing crosstalk from occurring between a plurality of communication cables that are collectively wired, and a direction in which the communication cable extends. The communication cables are positioned and fixed at least relatively at a plurality of positioning points along the array, and the arrangement of the communication cables at one of the positioning points is such that the arrangement of the communication cables at the positioning points adjacent to the one of the positioning points is performed. Used for a communication cable crosstalk prevention wiring method for laying the communication cable differently from the arrangement of the communication cables, for a communication cable configured to include all communication cable crosstalk prevention members arranged at the respective positioning locations. A crosstalk prevention device, wherein the communication cable crosstalk prevention member has a plurality of cable fitting grooves formed therein. Each of the communication cables is fitted into the cable fitting groove and is at least relatively positioned and fixed, and the block body of the communication cable crosstalk preventing member is provided. In each of the cable fitting grooves, a different communication cable identification display is attached, and the arrangement of the communication cable identification display of the one communication cable crosstalk prevention member is the one of the one communication cable identification display. The arrangement of the communication cable identification display of the communication cable crosstalk prevention member to be arranged adjacent to the communication cable crosstalk prevention member is configured to be different from the arrangement of the communication cable identification display, and the same communication cable identification display is attached. The same communication cable is fitted into the cable fitting groove of each of the communication cable crosstalk prevention members. For each block, for example, the same communication cable identification display group is used. The arrangement of the communication cable identification display means, for example, an arrangement in a direction in which a plurality of cable fitting grooves are arranged, and the block has a cylindrical shape having a plurality of cable fitting grooves on an outer peripheral surface at intervals in a circumferential direction. In the case of a body or a disc-shaped body, the arrangement of the communication cable identification display means, for example, an arrangement in the circumferential direction. Further, when the block body is a rectangular cross-sectional wave-shaped body having a plurality of cable fitting grooves at intervals in the width direction, the arrangement of the communication cable identification display means, for example, the arrangement in the width direction. . With such a configuration, it is possible to easily configure the wiring of the communication cable that does not extend long in the proximity / contact parallel state. As an arrangement difference mode of the communication cable identification display, an arrangement of any two adjacent communication cable identification displays of one communication cable crosstalk prevention member is arranged adjacent to the one communication cable crosstalk prevention member. It is possible to employ a communication cable crosstalk prevention member that is different from the arrangement of any two adjacent communication cable identification signs. More preferably, the arrangement of any two alternate communication cable identifications of the one communication cable crosstalk prevention member is also the communication cable to be arranged adjacent to the one communication cable crosstalk prevention member. The crosstalk prevention member is configured so as to be different from the arrangement of any two alternate communication cable identifications. Alternatively, a set of any two adjacent communication cable identification signs of one communication cable crosstalk prevention member may be disposed adjacent to the one communication cable crosstalk prevention member. Is different from a set of any two adjacent communication cable identification displays. The set of the communication cable identification display means, for example, a set in a direction in which a plurality of cable fitting grooves are arranged, and the block body has a plurality of cable fitting grooves on the outer peripheral surface at intervals in the circumferential direction. In the case of a columnar body or a disk-like body, the set of the communication cable identification display means, for example, a set in the circumferential direction. Further, when the block body is a rectangular cross section having a plurality of cable fitting grooves at intervals in the width direction, the set of communication cable identification display means, for example, a set in the width direction. Become.
[0009]
In each of the communication cables, a different cable distinction display is configured corresponding to the communication cable identification display, and the same communication cable identification display is attached, in the cable fitting groove of each communication cable crosstalk prevention member, If the same communication cable is fitted so that the communication cable identification display matches the cable identification display, wiring of the communication cable is facilitated. More preferably, the communication cable identification display is configured as an identification color, the cable identification display is configured as a differentiation color, and the differentiation color is configured as the color of the communication cable covering member. The identification color may be a color of the block itself.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is a schematic diagram showing a communication connection configuration of a plurality of computer terminals installed in one room in a building such as a building, FIG. 2 is a perspective view showing a communication cable crosstalk prevention device according to the present invention, and FIG. It is a front view which shows the block body used for the crosstalk prevention tool for communication cables.
[0012]
The communication connection configuration 1 includes an outlet 7 arranged in a room corresponding to each of a plurality of computer terminals 3 installed in one room in the building and connected to the computer terminal 3 via a communication cable 5; One consolidation point 11 is arranged for this room and connected to each outlet 7 via a communication cable 9, and one consolidation point 11 is arranged for the floor of this room and A patch panel 15 connected via a communication cable 13 and a switch hub 19 arranged in a building and connected to the patch panel 15 via a communication cable 17. The communication cable 13 connecting the point 11 and the patch panel 15 is bundled or bundled and It is wired in proximity to.
[0013]
The communication cable crosstalk preventer 21 is applied to a bundle of communication cables 13 wired between the consolidation point 11 and the patch panel 15 to prevent crosstalk between the communication cables 13.
[0014]
The communication cable crosstalk prevention member 21 is configured to include three communication cable crosstalk prevention members 23, 25, and 27. The communication cable crosstalk prevention member 23 includes a plastic block body 29 and a fixing tape 31, The communication cable crosstalk prevention member 25 is composed of a plastic block body 33 and a fixing tape 35, and the communication cable crosstalk prevention member 27 is composed of a plastic block body 37 and a fixing tape 39. 29, 33 and 37 have the same size and shape, and the fixing tapes 31, 35 and 39 have the same configuration.
[0015]
Each of the block bodies 29, 33, 37 is formed in a cylindrical shape having a diameter of about 40 mm (5 to 8 times the outer diameter of the communication cable 13) and a thickness or length of about 20 mm. Are arranged at the center of the front of the device. On the outer peripheral surfaces of the block bodies 29, 33, and 37, eight cable fitting grooves 41 into which the communication cable 13 is fitted are formed at appropriate intervals in the circumferential direction and at equal intervals. I have. Each cable fitting groove 41 is formed over the entire length in the thickness direction, that is, from the front to the back of the block bodies 29, 33, and 37, and further has an arc-shaped cross section slightly shorter or smaller than a semicircle. It is configured. The diameter of the cable fitting groove 41 is set to about 6 mm so as to be substantially equal to the outer diameter (approximately 6 mm) of the communication cable 13, and the opening width of the cable fitting groove 41 is substantially equal to the outer diameter of the communication cable 13. It is set to 5.5 mm, which is 90%.
[0016]
On the outer peripheral portion of the front surface of each of the block bodies 29, 33, and 37, the communication cable identification numbers 1 to 8 (communication cable Identification mark). The arrangement of the communication cable identification numbers differs in each of the block bodies 29, 33, and 37. In the block body 29, the communication cable identification numbers are assigned in the order from 1 to 8 clockwise. The communication cable identification numbers are clockwise in the order of 1, 6, 8, 4, 7, 2, 5, and 3. In the block 37, the communication cable identification numbers are clockwise in the order of 1, 4, 2, 6, and 6. , 7, 3, 8, 5 in that order. That is, the set of any two adjacent communication cable identification numbers in the circumferential direction of the block body 29 is different from the set of any two adjacent communication cable identification numbers in the circumferential direction of the adjacent block body 33. As described above, the arrangement of any two alternate communication cable identification numbers in the circumferential direction of the block body 29 is the same as the arrangement of any two alternate communication cables in the circumferential direction of the adjacent block body 33. It is configured so as to be different from the array of identification numbers for use. The set of any two adjacent communication cable identification numbers in the circumferential direction of the block body 33 is different from the set of any two adjacent communication cable identification numbers in the circumferential direction of the adjacent block body 37. As described above, the arrangement of any two alternate communication cable identification numbers in the circumferential direction of the block body 33 is the same as the arrangement of any two alternate communication cables in the circumferential direction of the adjacent block body 37. It is configured so as to be different from the array of identification numbers for use. The comparison of the communication cable identification number or the display is performed with reference to when the blocks 29, 33, and 37 are arranged in a predetermined state.
[0017]
Each of the fixing tapes 31, 35, and 39 has appropriate elasticity and is formed sufficiently longer than the outer peripheral length of the block bodies 29, 33, and 37, and has a width of about 20 mm (block bodies 29, 33, and 37). (The width is almost the same as the width of A planar male fastener 43 is attached to one circumferential end of each of the fixing tapes 31, 35, and 39, and a planar female fastener 45 is attached to the other circumferential end of each of the fixing tapes 31, 35, and 39. Are configured such that the ends can be connected to be separable.
[0018]
FIG. 4 is a perspective view for explaining a case in which the communication cable crosstalk preventer 21 is attached to the communication cable 13, and FIG. 5 is a diagram illustrating the communication cable crosstalk according to the present invention in which the communication cable crosstalk prevention tool 21 is attached to the communication cable 13. It is a schematic perspective view which shows the state which implemented the prevention wiring method.
[0019]
The communication cable crosstalk prevention members 23, 25, and 27 constituting the communication cable crosstalk prevention device 21 are arranged so that the front faces the consolidation point 11 in order from the consolidation point 11 (see FIG. 1) side. According to the arrangement order number, the communication cable 13 is disposed or attached at an appropriately selected positioning place in the length direction of the communication cable 13, and the communication cable crosstalk prevention member 23 and the communication cable are arranged. The distance from the crosstalk preventing member 25 is set to be within 8 m. Similarly, the distance between the communication cable crosstalk prevention member 25 and the communication cable crosstalk prevention member 27 is set to be within 8 m. The distance between the consolidation point 11 and the communication cable crosstalk prevention member 23 and the distance between the communication cable crosstalk prevention member 27 and the patch panel 15 are also set to be within 8 m.
[0020]
The attachment of the communication cable crosstalk preventer 21 to the communication cable 13 is performed as follows. The communication cable 13a of the eight communication cables 13 bundled or bundled is connected to the communication cable of the cable fitting groove 41 formed in the block body 29 of the communication cable crosstalk prevention member 23. The communication cable 13b is fitted into the cable fitting groove 41a corresponding to the communication cable identification number 2, and the communication cable 13b is fitted into the cable fitting groove 41a corresponding to the identification number 1. In this way, the communication cables 13a to 13h are fitted into the cable fitting grooves 41a to 41h corresponding to the communication cable identification numbers 1 to 8, respectively. The fixing tape 31 is tightly wound from above the communication cables 13a to 13h fitted in the cable fitting grooves 41a to 41h, and the planar male fastener 43 and the planar female fastener 45 are joined. The communication cable 13 is fixed in the cable fitting groove 41 by connecting the ends of the fixing tape 31 to each other. Further, the communication cable 13a is fitted into the cable fitting groove 41 corresponding to the communication cable identification number 1 among the cable fitting grooves 41 formed in the block body 33 of the communication cable crosstalk prevention member 25, and the communication cable 13b is fitted into the cable fitting groove 41 corresponding to the communication cable identification number 2. Similarly, the communication cables 13a to 13h are fitted into the respective cable fitting grooves 41 corresponding to the communication cable identification numbers 1 to 8. Further, a fixing tape 35 is tightly wound from above the communication cables 13a to 13h fitted in the respective cable fitting grooves 41, and the planar male fastener 43 and the planar female fastener 45 are joined to form a fixing tape. The communication cable 13 is fixed in the cable fitting groove 41 of the block body 33 by connecting the ends of the 35. Then, in the same manner, the corresponding communication cable 13 is fixed to each cable fitting groove 41 formed in the block body 37 of the communication cable crosstalk prevention member 27, and the wiring is completed. In each of the blocks 29, 33, and 37, the same communication cable 13 is fitted in the cable fitting groove 41 provided with the same communication cable identification number. It is preferable that each communication cable 13 has a cable identification display corresponding to the communication cable identification number.
[0021]
According to the wiring method here, the bundled communication cables 13 are dispersed at the arrangement position or the attachment position of the communication cable crosstalk prevention member 23, respectively, and dispersed again at the attachment position of the communication cable crosstalk prevention member 25. Again at the position where the crosstalk preventing member 27 is attached. Further, in the communication cable 13, any two adjacent and every other two of the communication cable crosstalk prevention members 23 at the arrangement position or the attachment position of the communication cable crosstalk prevention member 23 are in communication with the communication cable crosstalk prevention member 23. In the non-parallel state (twisted state) with the prevention member 25, any two adjacent or every other two lines at the attachment position of the communication cable crosstalk prevention member 25 are used for the communication cable. The crosstalk preventing member 25 and the communication cable crosstalk preventing member 27 are wired in a non-parallel state (twisted state).
[0022]
Note that, instead of the communication cable identification number, a communication cable identification color may be displayed on the cable fitting groove 41 of the block bodies 29, 33, and 37. For example, red (in place of number 1), yellow (in place of number 2), green (in place of number 3), and blue (in place of number 4) at the same positions where the communication cable identification numbers are attached. , Purple (in place of number 5), peach (in place of number 6), brown (in place of number 7), black (in place of number 8), and the communication cable 13 is covered with red, respectively. , Yellow, green, blue, purple, peach, brown, black. Then, each communication cable 13 is fitted into the cable fitting groove 41 on which the identification seal of the same color as the covering member is affixed.
[0023]
FIG. 6 is a perspective view showing a communication cable crosstalk preventing device having another configuration, and FIG. 7 is a crosstalk preventing wiring of another communication cable according to the present invention by attaching the communication cable crosstalk preventing device having another configuration to the communication cable 13. It is a schematic perspective view showing the state where the method was performed.
[0024]
The communication cable crosstalk prevention device 47 having another configuration is configured by block-shaped communication cable crosstalk prevention members 49, 51, and 53 (block bodies), and the communication cable crosstalk prevention members 49, 51, and 53 are used to prevent crosstalk. The component member 55 (see FIG. 8: FIG. 8 is a perspective view showing the crosstalk preventing member component 55) is formed by applying a bending force to divide the component into three in the width direction. Like the communication cable crosstalk prevention members 23, 25, and 27, the front surface of the communication cable crosstalk prevention members 49, 51, and 53 is the consolidation point 11 (see FIG. 1). The communication cable 13 is attached to an appropriately selected positioning place with an interval in the length direction of the communication cable 13 so that the communication cable 13 faces in the same direction (the front faces in the same direction). The distance between the crosstalk prevention member 51 and the distance between the communication cable crosstalk prevention member 51 and the communication cable crosstalk prevention member 53 is set to be within 8 m. Also, the distance between the consolidation point 11 and the communication cable crosstalk prevention member 49 and the distance between the communication cable crosstalk prevention member 53 and the patch panel 15 are also set to be within 8 m.
[0025]
The cross-talk preventing member 55 is made of plastic, is formed in a rectangular corrugated body having a width of about 300 mm, a length of about 30 mm, and a height of about 20 mm. Twenty-six cable fitting grooves 57 formed in a character shape are formed at equal intervals in the width direction. Each cable fitting groove 57 is formed over the entire length in the longitudinal direction, that is, from the front to the back, and the width of the cable fitting groove 57 is set to about 5 mm, which is slightly smaller than the outer diameter (approximately 6 mm) of the communication cable 13. The depth is set to about 12 mm, which is almost twice the outer diameter of the communication cable 13. At the bottom of each cable fitting groove 57, a notch 59 having a V-shaped cross section is formed along the center in the width direction, and when a bending force is applied from both sides in the width direction, the notch 59 at an appropriate position is formed. Therefore, the crosstalk prevention member 55 can be divided by the cable fitting groove 57 at an appropriate position, so that a communication cable crosstalk preventing member having a number of cable fitting grooves 57 suitable for the use environment can be configured. It has become. Also, a circular identification recess 61 is formed on the front surface of the crosstalk prevention member 55, that is, on the front surface of the communication cable crosstalk prevention members 49, 51, 53, at positions below the respective cable fitting grooves 57. It is configured such that an identification seal (communication cable identification display component) can be attached to the identification recess 61. The identification recesses 61 of the communication cable crosstalk prevention members 49, 51, 53 have identification seals of different colors such as red, blue, and yellow, or different numbers, symbols, or characters such as 1, 2, and 3 respectively. Can be attached.
[0026]
When attaching the communication cable crosstalk prevention device 47 to the communication cable 13, it is desirable to attach an identification seal to the identification recess 61 in advance. For example, red, yellow, green, blue, purple, peach, brown, and black identification stickers are attached to the communication cable crosstalk prevention member 49 in order from the upper right side in FIG. Green, red, black, peach, blue, brown, yellow, and purple identification stickers are attached to the communication cable crosstalk prevention member 51 in order from the right, and the communication cable crosstalk prevention member 53 is provided with the communication cable crosstalk prevention member 53. Similarly to the member 49, red, yellow, green, blue, purple, peach, brown, and black identification stickers are attached in order from the right side. After that, the communication cable 13 is fitted into the cable fitting groove 57. The communication cable 13 is fitted into the cable fitting groove 57 by pushing the communication cable 13 into the cable fitting groove 57. Since the diameter of the communication cable 13 is slightly larger than the width of the cable fitting groove 57, the communication cable 13 is fixed in the cable fitting groove 57.
[0027]
The wiring of the communication cable 13 is performed as follows. First, the communication cable 13a of the eight communication cables 13 is fitted into the cable fitting groove 57a corresponding to the red identification seal among the cable fitting grooves 57 formed in the communication cable crosstalk prevention member 49. Then, the communication cable 13b is fitted into the cable fitting groove 57b corresponding to the yellow identification seal. Similarly, the communication cable 13c corresponds to the cable fitting groove 57c corresponding to the green identification seal, the communication cable 13d corresponds to the cable fitting groove 57d corresponding to the blue identification seal, and the communication cable 13e corresponds to the purple identification seal. The communication cable 13f is inserted into the cable insertion groove 57f corresponding to the pink identification seal, the communication cable 13g is inserted into the cable insertion groove 57g corresponding to the brown identification seal, and the communication cable 13h is inserted into the black insertion groove 57e. Each is fitted into the cable fitting groove 57h corresponding to the seal. Further, the communication cable 13a is fitted into the cable fitting groove 57a corresponding to the red identification seal among the cable fitting grooves 57 formed on the communication cable crosstalk prevention member 51, and the communication cable 13b is fitted with the yellow identification seal. Is fitted into the cable fitting groove 57b corresponding to. In this manner, the communication cables 13a to 13h are fitted into the respective cable fitting grooves 57 of the communication cable crosstalk prevention member 51. In a similar manner, the communication cables 13a to 13h are fixed to the respective cable fitting grooves 57 formed in the communication cable crosstalk prevention member 53, thereby completing the wiring. Each communication cable 13 is fitted to the cable fitting groove 57 to which the same color identification seal is pasted by the communication cable crosstalk prevention members 49, 51, 53. The arrangement of the identification seals to be attached to the identification recesses 61 is described in an instruction manual or the like for each number of cable fitting grooves of the communication cable crosstalk prevention member. The arrangement of the identification seals is such that any set of any two adjacent identification seals of one communication cable crosstalk prevention member is different from any two adjacent identification seal sets of the adjacent communication cable crosstalk prevention member. And the arrangement of any two alternate identification seals of one communication cable crosstalk prevention member is different from the arrangement of any alternate two identification seals of adjacent communication cable crosstalk prevention members. Is configured in advance. The comparison of the communication cable identification color or the display is performed with reference to when the communication cable crosstalk prevention members 49, 51, and 53 are arranged in a predetermined state. Also in this case, the color of the covering member of each communication cable 13 is set to be different according to the color of the identification seal, and the communication cable 13 is set so that the color of the covering member matches the color of the identification seal. It may be fitted in the fitting groove 57.
[0028]
According to the wiring method here, the communication cable 13 can be configured such that any two adjacent or every other two cables at the arrangement position or the attachment position of the communication cable crosstalk prevention member 49 are connected to the communication cable crosstalk prevention member 49. And the communication cable crosstalk prevention member 51 are wired in a non-parallel state (twisted state), and any two adjacent ones and any other one are arranged at the arrangement position or the attachment position of the communication cable crosstalk prevention member 51 Are wired in a non-parallel state (twisted state) between the communication cable crosstalk prevention member 51 and the communication cable crosstalk prevention member 53.
[0029]
【The invention's effect】
As described above, in the communication cable crosstalk prevention wiring method of the present invention, since the communication cables are wired by applying a twist between the plurality of communication cables, the communication cables are wired in parallel in a close / contact state. Effectively prevent that. Further, by using the communication cable crosstalk prevention member or communication cable crosstalk prevention device of the present invention, it is possible to easily and quickly twist the plurality of communication cables to wire the communication cables.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a communication connection configuration of a plurality of computer terminals installed in one room in a building such as a building.
FIG. 2 is a perspective view showing a crosstalk prevention device for a communication cable according to the present invention.
FIG. 3 is a front view showing a block body used for a communication cable crosstalk prevention device.
FIG. 4 is a perspective view illustrating a case where a communication cable crosstalk prevention device is attached to a communication cable.
FIG. 5 is a schematic perspective view showing a state in which a communication cable crosstalk prevention device is attached to a communication cable and a communication cable crosstalk prevention wiring method according to the present invention is implemented.
FIG. 6 is a perspective view showing a crosstalk preventing device for a communication cable having another configuration.
FIG. 7 is a schematic perspective view illustrating a state in which another communication cable crosstalk prevention device is attached to a communication cable and another communication cable crosstalk prevention wiring method according to the present invention is performed.
FIG. 8 is a perspective view showing components for preventing crosstalk.
[Explanation of symbols]
13 Communication cable
21, 47 Crosstalk prevention device for communication cable
23, 25, 27, 49, 51, 53 Crosstalk prevention member for communication cable
29, 33, 37 block
41, 57 Cable fitting groove

Claims (12)

A cross-talk prevention wiring method of a communication cable for preventing cross-talk from occurring between a plurality of communication cables wired together,
At least relatively positioning and fixing each communication cable at a plurality of positioning points along the direction in which the communication cable extends,
The communication cable is arranged such that the arrangement of the communication cables at one of the positioning locations is different from the arrangement of the communication cables at the positioning location adjacent to the one positioning location. Crosstalk prevention wiring method. A cross-talk prevention wiring method of a communication cable for preventing cross-talk from occurring between a plurality of communication cables wired together,
At least relatively positioning and fixing each communication cable at a plurality of positioning points along the direction in which the communication cable extends,
The arrangement of any two adjacent communication cables at one of the positioning locations is different from the arrangement of any two adjacent communication cables at the one of the positioning locations adjacent to the one positioning location. And a wiring method for preventing crosstalk of the communication cable. A cross-talk prevention wiring method of a communication cable for preventing cross-talk from occurring between a plurality of communication cables wired together,
At least relatively positioning and fixing each communication cable at a plurality of positioning points along the direction in which the communication cable extends,
A set of any two adjacent communication cables at one of the positioning locations is different from a set of any two adjacent communication cables at the positioning location adjacent to the one positioning location. And a wiring method for preventing crosstalk of the communication cable. A crosstalk prevention member for a communication cable, which is used in the communication cable crosstalk prevention wiring method according to claim 1 and is disposed at each of the positioning locations.
It is configured to have a block body in which a plurality of cable fitting grooves are formed,
The crosstalk preventing member for a communication cable, wherein each of the communication cables is fitted into the cable fitting groove and is at least relatively positioned and fixed. 5. The communication cable according to claim 4, wherein the block body is a columnar body or a disk-shaped body in which a plurality of the cable fitting grooves are formed on an outer peripheral surface at intervals in a circumferential direction. For crosstalk prevention. 6. The communication device according to claim 5, further comprising a detachable fixing tape that wraps around the communication cable fitted into the cable fitting groove and fixes the communication cable to the block body. Crosstalk prevention member for communication cables. The crosstalk prevention member for a communication cable according to claim 4, wherein the block body is a cross-sectionally rectangular wave-shaped body in which a plurality of the cable fitting grooves are formed at intervals in a width direction. A communication cable crosstalk prevention device which is used in the communication cable crosstalk prevention wiring method according to claim 1 and includes all communication cable crosstalk prevention members arranged at the respective positioning locations,
The communication cable crosstalk prevention member is configured to have a block body in which a plurality of cable fitting grooves are formed, and each of the communication cables is fitted in the cable fitting groove and at least relatively positioned. Is fixed,
The block body of the communication cable crosstalk prevention member, for each of the cable fitting groove, a different communication cable identification display is attached,
The arrangement of the communication cable identification display of the communication cable crosstalk prevention member is such that the communication cable crosstalk prevention member for the communication cable to be disposed adjacent to the communication cable crosstalk prevention member. It is configured to be different from the array of identification,
The same communication cable is fitted in the communication cable fitting groove of each of the communication cable crosstalk preventing members, to which the same communication cable identification mark is attached, wherein the same communication cable is fitted. Protective gear. A communication cable crosstalk prevention device which is used in the communication cable crosstalk prevention wiring method according to claim 1 and includes all communication cable crosstalk prevention members arranged at the respective positioning locations,
The communication cable crosstalk prevention member is configured to have a block body in which a plurality of cable fitting grooves are formed, and each of the communication cables is fitted in the cable fitting groove and at least relatively positioned. Is fixed,
The block body of the communication cable crosstalk prevention member, for each of the cable fitting groove, a different communication cable identification display is attached,
Arrangement of any two adjacent communication cable identification signs of the one communication cable crosstalk preventing member is such that the communication cable crosstalk to be arranged adjacent to the one communication cable crosstalk preventing member. The prevention member is configured to be different from the arrangement of any adjacent communication cable identification display,
The same communication cable is fitted in the communication cable fitting groove of each of the communication cable crosstalk preventing members, to which the same communication cable identification mark is attached, wherein the same communication cable is fitted. Protective gear. A communication cable crosstalk prevention device which is used in the communication cable crosstalk prevention wiring method according to claim 1 and includes all communication cable crosstalk prevention members arranged at the respective positioning locations,
The communication cable crosstalk prevention member is configured to have a block body in which a plurality of cable fitting grooves are formed, and each of the communication cables is fitted in the cable fitting groove and at least relatively positioned. Is fixed,
The block body of the communication cable crosstalk prevention member, for each of the cable fitting groove, a different communication cable identification display is attached,
Any two adjacent sets of the communication cable identification signs of the one communication cable cross-talk preventing member may be arranged such that the communication cable cross-talk to be disposed adjacent to the one communication cable cross-talk preventing member. A cross-talk prevention device for a communication cable, wherein the prevention member is configured so as to be different from a set of arbitrary adjacent communication cable identification indicators. Each of the communication cables has a different cable distinction corresponding to the communication cable identification,
The same communication cable identification mark is attached to the cable fitting groove of each of the communication cable crosstalk prevention members, so that the communication cable identification mark and the cable identification mark are the same. The crosstalk prevention device for a communication cable according to claim 8, 9 or 10, wherein the communication cable is fitted. The communication cable identification display is an identification color,
The communication cable crosstalk prevention device according to claim 11, wherein the cable distinction display is a color distinction, and the color distinction is a color of a covering member of the communication cable.

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