JP2017116717A - Optical fiber cable, optical fiber cable identification system, and optical fiber cable identification method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical fiber cable, an optical fiber cable identification system, and an optical fiber cable identification method that, when a prescribed optical fiber is removed from a plurality of optical fiber cables in a laid state, can enhance discriminability of the optical fiber cable the removal of which is planned.SOLUTION: An optical fiber cable comprises an optical fiber 1 for communication and an external coat 2 made from insulation material and provided on the side periphery of the optical fiber. A pair of power supply lines 4, 5 for supplying power to a light-emitting element when a socket including the light-emitting element is attached is provided on the side periphery of the external coat. The pair of power supply lines comprises conductors 4a, 5a and insulation layers 4b, 5b made from insulation material and provided on the side periphery of the conductors.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an optical fiber cable, an optical fiber cable identification system, and an optical fiber cable identification method.

  Conventionally, when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state, in order to prevent erroneous removal of the optical fiber cable, between one end and the other end of the optical fiber cable to be removed. A continuity test may be performed (see, for example, Patent Document 1).

JP 2012-243670 A

  However, when removing a predetermined optical fiber cable from a bundle of a plurality of optical fiber cables, find one end and the other end of the optical fiber cable to be removed (that is, match both ends of the optical fiber cable to be removed) It is difficult to conduct continuity tests. In addition, the optical fiber cable is often long, and the optical fiber cable (a bundle of a plurality of optical fiber cables) may be twisted during and after laying. In such a case, it may be more difficult to find one end and the other end of the optical fiber cable to be removed.

  An object of this invention is to provide the technique which can improve the discriminability of the optical fiber cable planned to be removed when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state.

According to one aspect of the invention,
An optical fiber for communication;
A jacket formed of an insulating material and provided on a side circumference of the optical fiber,
A pair of power supply lines for supplying power to the light emitting element when a socket having the light emitting element is attached to the side periphery of the outer jacket,
Each of the pair of power supply lines is provided with an optical fiber cable including a conductor and an insulating layer formed of an insulating material and provided on a side periphery of the conductor.

According to another aspect of the invention,
An optical fiber for communication;
A jacket formed of an insulating material and provided on a side circumference of the optical fiber,
An optical fiber cable in which a pair of power supply lines for supplying power to the light emitting element when a socket having the light emitting element is attached is further provided so as to be positioned slightly inside from the side peripheral surface of the jacket Is provided.

According to yet another aspect of the invention,
An optical fiber cable having a communication optical fiber, a jacket formed of an insulating material and provided on a side periphery of the optical fiber, and a pair of power supply lines;
It has a light emitting element, is formed so as to be attachable to the optical fiber cable in a laid state, and is configured to be able to conduct the power supply line and the input terminal drawn from the light emitting element. Socket,
A power supply device for supplying power to the power supply line,
The pair of power supply lines includes a conductor and an insulating layer that is formed of an insulating material and covers a side circumference of the conductor, and is provided on a side circumference of the jacket.
When removing a predetermined optical fiber cable from a plurality of optical fiber cables in the laid state, the insulating layer of the power supply line of the optical fiber cable is broken in the optical fiber cable to be removed in the laid state. The socket is attached so that the conductor and the input terminal drawn out from the light emitting element are electrically connected, power is supplied from the power feeding device to the conductor of the power supply line, and the light emitting element is passed through the conductor. An optical fiber cable identification system is provided that can identify the optical fiber cable to be removed by supplying electric power to the light emitting element to emit light.

According to yet another aspect of the invention,
A communication optical fiber, a jacket formed of an insulating material and provided on a side circumference of the optical fiber, and a pair of power supplies provided so as to be positioned slightly inward from the side circumference surface of the jacket A fiber optic cable having a wire;
It has a light emitting element, is formed so as to be attachable to the optical fiber cable in a laid state, and is configured to be able to conduct the power supply line and the input terminal drawn from the light emitting element. Socket,
A power supply device for supplying power to the power supply line,
When removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state, the power supply line breaks the jacket of the optical fiber cable into the optical fiber cable to be removed in the laid state And the input terminal drawn out from the light emitting element is attached to the socket, power is supplied from the power feeding device to the power supply line, and power is supplied to the light emitting element through the power supply line. There is provided an optical fiber cable identification system capable of identifying the optical fiber cable to be removed by causing the light emitting element to emit light.

According to yet another aspect of the invention,
An optical fiber cable identification method for identifying an optical fiber cable to be removed when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state,
An optical fiber for communication; a jacket formed of an insulating material and provided on a side circumference of the optical fiber; a conductor and an insulating layer provided on a side circumference of the conductor; and a side circumference of the jacket A pair of power supply lines for supplying power to the light emitting element provided in the socket, and an optical fiber cable to be removed in a laid state from the conductor and the light emitting element included in the power supply line Attaching the socket so as to conduct the drawn input terminal; and
Supplying power from the power supply device to the conductor of the power supply line, supplying power to the light-emitting element via the conductor, and allowing the light-emitting element to emit light so that the optical fiber cable to be removed can be identified. An optical fiber cable identification method is provided.

According to yet another aspect of the invention,
An optical fiber cable identification method for identifying an optical fiber cable to be removed when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state,
An optical fiber for communication, a jacket made of an insulating material and provided on a side circumference of the optical fiber, and a socket provided so as to be positioned slightly inward from a side circumferential surface of the jacket A pair of power supply lines for supplying power to the light emitting element, and the optical fiber cable to be removed in a laid state is connected to the power supply line and the input terminal drawn from the light emitting element. Attaching the socket;
Supplying power to the power supply line from a power supply device, supplying power to the light emitting element via the power supply line, allowing the light emitting element to emit light, and identifying an optical fiber cable to be removed; and An optical fiber cable identification method is provided.

  According to the present invention, when a predetermined optical fiber cable is removed from a plurality of optical fiber cables in a laid state, the discriminability of the optical fiber cable to be removed can be improved.

(A) shows an example of the cross-sectional schematic of the optical fiber cable concerning one Embodiment of this invention, (b) shows the modification of the cross-sectional schematic of an optical fiber cable, (c) is an electric power supply line An example of the cross-sectional schematic of the optical fiber cable before providing is shown. 1 shows a schematic configuration diagram of an optical fiber cable identification system according to an embodiment of the present invention. FIG. An example of the cross-sectional schematic of the optical fiber cable concerning other embodiment of this invention is shown.

<One Embodiment of the Present Invention>
(1) Configuration of Optical Fiber Cable Hereinafter, the configuration of the optical fiber cable 10 according to one embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 1A, the optical fiber cable 10 has an optical fiber 1 for communication. The optical fiber 1 has an optical fiber core wire 1a including, for example, a core and a clad provided on the side periphery of the core (provided so as to cover the outer peripheral side surface of the core). Moreover, the optical fiber 1 may have the tensile layer 1b containing tensile strength fibers, such as an aramid fiber, on the side periphery of the optical fiber core wire 1a. Further, the optical fiber 1 may have an insulating layer 1c formed of an insulating material on the side periphery of the tensile layer 1b (or on the side periphery of the optical fiber core wire 1a when the tensile layer 1b is not provided). Good.

  An outer sheath (sheath) 2 is provided on the side periphery of the optical fiber 1. That is, the jacket 2 is provided so as to cover the outer peripheral side surface of the optical fiber 1. The jacket 2 is made of an insulating material. As this insulating material, for example, a polyolefin-based resin material such as polyethylene (PE) or polypropylene (PP) can be used.

  The optical fiber cable 10 is a flat cable in which, for example, a plurality of optical fibers 1 are arranged apart from each other in parallel, and the jacket 2 is provided so as to cover the side periphery of the plurality of optical fibers 1 at once. is there.

  The optical fiber cable 10 may further include a tensile wire 3. As the tensile strength wire 3, for example, a metal wire such as a steel wire, a fiber reinforced plastic (FRP) such as an aramid fiber reinforced plastic (AFRP) or a glass fiber reinforced plastic (GFRP), or the like can be used. The tensile strength wire 3 is not limited to the case where it is provided at the center of the optical fiber cable 10 as shown in FIG.

  The optical fiber cable 10 has a pair of (that is, two) power supply lines 4 and 5. These power supply lines 4 and 5 are lines for supplying power to a light emitting element 21 included in a socket 22 described later, and are different from the optical fiber 1 described above.

  Each of the power supply lines 4 and 5 is made of, for example, conductors 4a and 5a made of copper wire and an insulating material, and is provided on each side periphery of the conductors 4a and 5a (covers the outer peripheral side surfaces of the conductors 4a and 5a, respectively) The insulating layers 4b and 5b are provided. For example, existing insulated wires can be used as the power supply lines 4 and 5.

  Each of the power supply lines 4 and 5 is provided continuously (without interruption) along the longitudinal direction of the optical fiber cable 10. Thereby, the conductors 4a and 5a and the input terminal 21c drawn out from the light emitting element 21 described later can be electrically connected regardless of the position of the socket 22 described later at any position of the optical fiber cable 10.

  Each of the power supply lines 4 and 5 is provided on the side periphery of the jacket 2. For example, each of the power supply lines 4 and 5 is provided such that a part of the outer peripheral side surface in the circumferential direction of each of the power supply lines 4 and 5 and the outer peripheral side surface of the jacket 2 are on the same plane. That is, each of the power supply lines 4 and 5 is provided such that a part of the outer peripheral side surface of each power supply line 4 and 5 is exposed and the other part is covered with the jacket 2. Each of the power supply lines 4 and 5 may be provided, for example, on the side circumference of the outer jacket 2 as shown in FIG.

  When a later-described socket 22 is attached to the optical fiber cable 10, for example, at least the insulating layers 4 b and 5 b are broken by the socket 22 to electrically connect the conductors 4 a and 5 a and the input terminal 21 c drawn from the later-described light-emitting element 21. . At this time, if the power supply lines 4 and 5 are provided on the side periphery of the jacket 2, that is, provided near the surface of the optical fiber cable 10, the power supply lines 4 and 5 are connected to the optical fiber cable 10. It is easier to break the insulating layers 4b and 5b with the socket 22 or the like than in the case where it is provided at the center of the socket. That is, the mounting workability of the socket can be improved.

  As shown in FIG. 1C, two grooves 6 and 7 into which the above-described power supply lines 4 and 5 are fitted are formed along the longitudinal direction of the jacket 2 on the side periphery of the jacket 2. ing. The aforementioned power supply lines 4 and 5 are fitted into the grooves 6 and 7, respectively. For example, when the optical fiber cable 10 is a flat cable, the longitudinal direction of the jacket 2 is a direction orthogonal to the direction (parallel direction) in which the optical fibers 1 are arranged. Thereby, the power supply lines 4 and 5 can be provided after forming the jacket 2. That is, the power supply lines 4 and 5 can be retrofitted. Therefore, the optical fiber cable 10 can be easily formed.

  The pair of power supply lines 4 and 5 (for example, two grooves 6 and 7) are preferably provided so as to be positioned diagonally in the width direction of the optical fiber cable 10. For example, it is preferable that the power supply lines 4 and 5 (for example, the two grooves 6 and 7) are respectively provided on both ends in the major axis direction of the flat cable.

  Moreover, the shape of each groove | channel 6 and 7 is a shape which can insert the electric power supply lines 4 and 5, Comprising: It is a shape which can suppress that the inserted electric power supply lines 4 and 5 drop out from within a groove | channel. It is preferable.

  The thickness of the insulating layers 4b and 5b is preferably set to a thickness that can improve the mounting workability of the socket. For example, the thickness of the insulating layers 4b and 5b is preferably set to such a thickness that the insulating layers 4b and 6b can be easily broken by the socket 22 when the socket 22 described later is attached.

  The insulating layers 4b and 5b are preferably made of a material that is more easily torn than the outer cover 2. For example, the Young's modulus of the insulating layers 4b and 5b is preferably lower than the Young's modulus of the outer cover 2. Thereby, when attaching the socket 22 mentioned later, it becomes easy to tear the insulating layers 4b and 5b with the socket 22, for example, and the attachment workability | operativity of the above-mentioned socket can be improved further.

  As an insulating material for forming such insulating layers 4b and 5b, for example, polyvinyl chloride, low density polyethylene, high density polyethylene, polypropylene or the like can be used.

  The above-described optical fiber cable 10 is manufactured as follows. First, a plurality of optical fibers 1 are prepared, and the optical fibers 1 are arranged in parallel. An outer cover 2 is formed by providing an insulating material so as to collectively cover the outer peripheral side surfaces of a plurality of optical fibers 1 arranged in parallel. When forming the jacket 2, two grooves 6 and 7 are formed on the side periphery of the jacket 2 along the longitudinal direction of the jacket 2. The two grooves 6 and 7 may be formed after the outer cover 2 is provided. Then, power supply lines 4 and 5 (for example, insulated wires) having conductors 4a and 5a and insulating layers 4b and 5b are fitted into the grooves 6 and 7, respectively. Thereby, the above-mentioned optical fiber cable 10 is formed.

(2) Configuration of Optical Fiber Cable Identification System Next, the configuration of the optical fiber cable identification system according to an embodiment of the present invention will be described with reference to FIG. FIG. 2 is a schematic configuration diagram of the optical fiber cable identification system according to the present embodiment, specifically, a state in which the optical fiber cable identification system according to the present embodiment is provided in the optical fiber cable 10 to be removed in a laid state. The principal part enlarged view is shown.

  The optical fiber cable identification system according to the present embodiment identifies, for example, an optical fiber cable to be removed from a plurality of installed optical fiber cables when removing a predetermined optical fiber cable from a plurality of optical fiber cables. It is a system that makes it possible. As the optical fiber cable to be removed, the optical fiber cable 10 having the pair of power supply lines 4 and 5 described above can be used.

  As shown in FIG. 2, the optical fiber cable identification system 20 according to the present embodiment includes a socket 22 having a light emitting element 21 described later and a power feeding device 23 described later. The optical fiber cable 10 to be removed may be included in the optical fiber cable identification system 20.

  As the light emitting element 21, for example, an LED or the like can be used. Further, from the light emitting element 21, an input terminal 21c capable of conducting with the above-described power supply lines 4 and 5 is drawn out.

  The socket 22 is formed to be attachable to the optical fiber cable 10 in the laid state. The socket 22 is preferably formed so that it can be attached to the optical fiber cable 10 again. The socket 22 itself is made of an insulating material. The socket 22 is formed so that the input terminal 21c drawn from the light emitting element 21 and the above-described power supply lines 4 and 5 included in the optical fiber cable 10 can be electrically connected.

  Moreover, it is preferable that the socket 22 is formed so that the above-described insulating layers 4 b and 5 b can be broken when the socket 22 is attached to the optical fiber cable 10. Thereby, the mounting workability | operativity of the above-mentioned socket can be improved more.

  The socket 22 preferably includes two light emitting elements 21a and 21b. Each of the light emitting elements 21a and 21b is provided such that the direction of the current flowing through one light emitting element 21a is opposite to the direction of the current flowing through the other light emitting element 21b. That is, when the direction of the current flowing through one light emitting element 21a is the + direction, the direction of the current flowing through the other light emitting element 21b is the negative direction opposite to the + direction. It is provided in the socket 22 so as to be. Thereby, for example, even when the optical fiber cable 10 is twisted at the time of laying or after laying and the + direction and the − direction are not understood, either one of the two light emitting elements 21a and 21b is caused to emit light. Can do. That is, the discriminability of the optical fiber cable 10 scheduled to be removed in the laid state can be improved. Moreover, since the operation | work which confirms the direction of the light emitting element 21 when attaching the socket 22 is unnecessary, the attachment workability | operativity of a socket can be improved more.

  The optical fiber cable identification system 20 includes a power feeding device 23 that supplies power to the power supply lines 4 and 5 included in the optical fiber cable 10. The power supply device 23 is configured to be able to supply power in both the + direction and the − direction as described above, or to be able to supply power by switching between the + direction and the − direction in a time division manner, that is, configured to be able to supply AC power. Is preferred. In addition, when the two light emitting elements 21a and 21b are provided in the socket 22 as described above, the power feeding device 23 is a power in at least one of a positive direction power (current) and a negative direction power (current). It may be configured so that (current) can be fed.

(3) Optical Fiber Cable Identification Method Subsequently, an optical fiber cable identification method using the above-described optical fiber cable identification system 20 will be described. The optical fiber cable identification method according to the present embodiment is a method for identifying an optical fiber cable to be removed when a predetermined optical fiber cable is removed from a plurality of optical fiber cables in a laid state.

  A socket 22 having a light emitting element 21 is attached to an optical fiber cable 10 that is a predetermined optical fiber cable to be removed from a plurality of optical fiber cables in a laid state and has the power supply lines 4 and 5 described above. At this time, the socket 22 is attached to the optical fiber cable 10 to be removed so that the power supply lines 4 and 5 (conductors 4a and 5a) and the input terminal 21c drawn from the light emitting element 21 are electrically connected. Specifically, the insulation layers 4b and 5b of the power supply lines 4 and 5 of the optical fiber cable 10 to be removed are broken by the socket 22, and the conductors 4a and 5a and the input terminal 21c drawn from the light emitting element 21 are electrically connected. Make it conductive.

  The power feeding device 23 is connected to the optical fiber cable 10 (the conductors 4a and 5a) to be removed. Then, power is supplied from the power feeding device 23 to the conductors 4a and 5a. The power supplied to the conductors 4a and 5a is supplied to the light emitting element 21 through the conductors 4a and 5a, and the light emitting element 21 emits light. It becomes possible to identify the optical fiber cable 10 to be removed by using the light emitting element 21 that emits light as a mark.

  For example, the optical fiber cable identification system 20 according to the present embodiment can attach the socket 22 to the central portion in the longitudinal direction of the optical fiber cable 10. That is, when the optical fiber cable 10 is removed, first, the light emitting element 21 can be caused to emit light by attaching the socket 22 to the central portion in the longitudinal direction of the optical fiber cable 10. Thereby, the operator who removes the optical fiber cable 10 can cut | disconnect so that the optical fiber cable 10 may be divided into 2 using the light emitting element 21 currently light-emitted as a mark. As a result, for example, two workers can take up the optical fiber cable 10 from both ends of the optical fiber cable 10, and the efficiency of removing the optical fiber cable 10 can be improved.

(4) Effects According to the Present Embodiment According to the present embodiment, one or more effects described below are exhibited.

(A) By providing a pair of power supply lines 4 and 5 for supplying power to the light emitting element 21, the socket 22 having the light emitting element 21 is attached to the optical fiber cable 10 to be removed in the laid state, and the light emitting element 21 Can emit light. For example, the light emitting element 21 can emit light by attaching the socket 22 to an intermediate portion (a portion other than both ends) of the optical fiber cable 10 to be removed in the laid state. Thereby, the discriminability of the optical fiber cable 10 to be removed can be improved. Therefore, for example, when a predetermined optical fiber cable is removed from a bundle of a plurality of optical fiber cables, erroneous removal of the optical fiber cable can be suppressed. Moreover, the conventional continuity test becomes unnecessary, and the time for removing the optical fiber cable 10 can be shortened.

(B) By providing the power supply lines 4 and 5 on the side periphery of the jacket 2 (that is, in the vicinity of the surface of the jacket 2), when the socket 22 is attached to the optical fiber cable 10 to be removed, the socket 22 supplies power. The insulating layers 4b and 5b of the lines 4 and 5 are easily broken. For example, when the socket 22 is attached, the insulating layers 4b and 5b can be broken only by the socket 22 coming into contact with the optical fiber cable 10 and being rubbed.

(C) By forming the grooves 6 and 7 along the longitudinal direction of the outer cover 2 on the side periphery of the outer cover 2 and inserting the power supply lines 4 and 5 into the grooves 6 and 7, respectively. The power supply lines 4 and 5 can be provided after forming the jacket 2. Thereby, the optical fiber cable 10 can be formed easily.

(D) The socket 22 is provided with two light emitting elements 21, or is configured so that power can be supplied in both the + direction and the-direction, or can be supplied by switching between the + direction and the-direction in a time-sharing manner. Even if the optical fiber cable 10 is twisted at the time of laying or after laying, for example, and the + direction and the − direction are not known, the light emitting element 21 (21a, 21b) is used. ) Can be reliably emitted. Thereby, the discriminability of the optical fiber cable 10 scheduled to be removed can be further improved.

(E) The removal of the optical fiber cable 10 in the laid state is often performed by winding the optical fiber cable 10 little by little from one end of the optical fiber cable 10 in the laid state. Therefore, since the socket 22 is formed so that it can be reattached, the optical fiber cable 10 to be removed is wound up and removed to some extent, and then the socket 22 is reattached to another location, and the optical fiber cable 10 to be removed is removed to some extent. Can be wound up. Thereby, removal of the optical fiber cable 10 can be performed at lower cost.

(F) The optical fiber cable identification system 20 according to the present embodiment is particularly effective when the optical fiber cable 10 to be removed is long.

(Other embodiments of the present invention)
As mentioned above, although one Embodiment of this invention was described concretely, this invention is not limited to the above-mentioned embodiment, In the range which does not deviate from the summary, it can change suitably.

  In the above-described embodiment, the case where each of the pair of power supply lines 4 and 5 is provided on the side periphery of the jacket 2 has been described, but the present invention is not limited to this. For example, as shown in FIG. 3, the pair of power supply lines 4 and 5 may be provided so as to be located slightly inward from the side peripheral surface of the jacket 2. In this case, each of the pair of power supply lines 4 and 5 is preferably a line having only the conductors 4a and 5a (that is, a strand), for example. That is, the conductors 4a and 5a may be slightly embedded in the jacket 2 without providing the insulating layers 4b and 5b.

  In such an optical fiber cable 10 </ b> A, when attaching the socket 22, at least the outer sheath 2 is broken by the socket 22 or the like to make the conductors 4 a and 5 a and the input terminal 21 c drawn from the light emitting element 21 conductive. Therefore, when attaching the socket 22 to the optical fiber cable 10A, the thickness t of the thinnest portion of the jacket 2 is determined from the viewpoint of easily breaking the jacket 2 with the socket 22 or the like and improving the mounting workability of the socket. A thinner one is preferred.

  Even with such an optical fiber cable 10A, the same effects as those of the above-described embodiment can be obtained.

  In the optical fiber cable 10A, the power supply lines 4 and 5 may be lines having conductors 4a and 5a and insulating layers 4b and 5b.

  In the above-described embodiment, the case where the socket 22 has two light emitting elements, that is, the light emitting element 21a connected in the + direction and the light emitting element 21b connected in the − direction, is not limited to this. . For example, the socket may have only one light emitting element. In this case, it is preferable that the power supply apparatus is configured to be able to supply power in both the + direction and the − direction as described above, or configured to be able to supply power by switching between the + direction and the − direction in a time division manner. Here, the + direction is the direction of current emitted from one light emitting element provided in the socket, and the − direction is the direction of current opposite to the + direction, that is, the light emitting element does not emit light. The direction of the current. Also by this, the same effect as (d) of the above-mentioned embodiment can be acquired.

  In the above-described embodiment, the case where one socket 22 is attached to the optical fiber cable to be removed has been described as an example, but the present invention is not limited to this. That is, two or more sockets 22 may be attached to the optical fiber cable to be removed. Thereby, the discriminability of the optical fiber cable to be removed can be further improved.

  In the above-described embodiment, the case where the optical fiber cable 10 is a flat cable has been described as an example, but the present invention is not limited to this. The optical fiber cable 10 may be a round cable (that is, a cable having a circular cross section).

  Further, the optical fiber cable 10 is not limited to the case where the optical fiber cable 10 includes a plurality of optical fibers 1. That is, the present invention can be applied even to an optical fiber cable having one optical fiber 1.

<Preferred embodiment of the present invention>
Hereinafter, preferred embodiments of the present invention will be additionally described.

[Appendix 1]
According to one aspect of the invention,
An optical fiber for communication;
A jacket formed of an insulating material and provided on a side circumference of the optical fiber,
A pair of power supply lines for supplying power to the light emitting element when a socket having the light emitting element is attached to the side periphery of the outer jacket,
Each of the pair of power supply lines is provided with an optical fiber cable including a conductor and an insulating layer formed of an insulating material and provided on a side periphery of the conductor.

[Appendix 2]
The optical fiber cable according to appendix 1, preferably,
Two grooves are formed along the longitudinal direction on the side periphery of the jacket,
The pair of power supply lines are fitted in the two grooves, respectively.

[Appendix 3]
The optical fiber cable according to appendix 1 or 2, preferably,
The insulating layer is made of a material that is more easily torn than the jacket.

[Appendix 4]
The optical fiber cable according to any one of appendices 1 to 3, preferably,
The Young's modulus of the insulating layer is lower than the Young's modulus of the jacket.

[Appendix 5]
According to another aspect of the invention,
An optical fiber for communication;
A jacket formed of an insulating material and provided on a side circumference of the optical fiber,
An optical fiber cable in which a pair of power supply lines for supplying power to the light emitting element when a socket having the light emitting element is attached is further provided so as to be positioned slightly inside from the side peripheral surface of the jacket Is provided.

[Appendix 6]
The optical fiber cable according to appendix 5, preferably
Each of the pair of power supply lines includes a conductor and an insulating layer formed of an insulating material and provided on a side periphery of the conductor.

[Appendix 7]
The optical fiber cable according to any one of appendices 1 to 6, preferably,
A plurality of the optical fibers are arranged apart from each other in parallel, and the jacket is a flat cable provided so as to collectively cover the side periphery of the plurality of optical fibers,
The pair of power supply lines (the two grooves) are provided so as to be located diagonally in the major axis direction of the flat cable.

[Appendix 8]
According to yet another aspect of the invention,
An optical fiber cable having a communication optical fiber, a jacket formed of an insulating material and provided on a side periphery of the optical fiber, and a pair of power supply lines;
It has a light emitting element, is formed so as to be attachable to the optical fiber cable in a laid state, and is configured to be able to conduct the power supply line and the input terminal drawn from the light emitting element. Socket,
A power supply device for supplying power to the power supply line,
The pair of power supply lines includes a conductor and an insulating layer that is formed of an insulating material and covers a side circumference of the conductor, and is provided on a side circumference of the jacket.
When removing a predetermined optical fiber cable from a plurality of optical fiber cables in the laid state, the insulating layer of the power supply line of the optical fiber cable is broken in the optical fiber cable to be removed in the laid state. The socket is attached so that the conductor and the input terminal drawn out from the light emitting element are electrically connected, power is supplied from the power feeding device to the conductor of the power supply line, and the light emitting element is passed through the conductor. An optical fiber cable identification system is provided that can identify the optical fiber cable to be removed by supplying electric power to the light emitting element to emit light.

[Appendix 9]
According to yet another aspect of the invention,
A communication optical fiber, a jacket formed of an insulating material and provided on a side circumference of the optical fiber, and a pair of power supplies provided so as to be positioned slightly inward from the side circumference surface of the jacket A fiber optic cable having a wire;
It has a light emitting element, is formed so as to be attachable to the optical fiber cable in a laid state, and is configured to be able to conduct the power supply line and the input terminal drawn from the light emitting element. Socket,
A power supply device for supplying power to the power supply line,
When removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state, the power supply line breaks the jacket of the optical fiber cable into the optical fiber cable to be removed in the laid state And the input terminal drawn out from the light emitting element is attached to the socket, power is supplied from the power feeding device to the power supply line, and power is supplied to the light emitting element through the power supply line. There is provided an optical fiber cable identification system capable of identifying the optical fiber cable to be removed by causing the light emitting element to emit light.

[Appendix 10]
The fiber optic cable identification system of appendix 8 or 9, preferably
The socket is provided with two light emitting elements,
Each of the two light emitting elements is provided such that the direction of the current flowing through one light emitting element is opposite to the direction of the current flowing through the other light emitting element.

[Appendix 11]
The optical fiber cable identification system according to any one of appendices 8 to 10, preferably,
In the case where one light emitting element is provided, when the direction of the current emitted from the light emitting element is the + direction and the direction of the current flowing in the direction opposite to the + direction is the − direction, the power feeding device is in the + direction. It is configured so that power can be supplied also in the negative direction, or it can be supplied by switching the + direction and the negative direction in a time-sharing manner.

[Appendix 12]
According to yet another aspect of the invention,
An optical fiber cable identification method for identifying an optical fiber cable to be removed when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state,
An optical fiber for communication; a jacket formed of an insulating material and provided on a side circumference of the optical fiber; a conductor and an insulating layer provided on a side circumference of the conductor; and a side circumference of the jacket A pair of power supply lines for supplying power to the light emitting element provided in the socket, and an optical fiber cable to be removed in a laid state from the conductor and the light emitting element included in the power supply line Attaching the socket so as to conduct the drawn input terminal; and
Supplying power from the power supply device to the conductor of the power supply line, supplying power to the light-emitting element via the conductor, and allowing the light-emitting element to emit light so that the optical fiber cable to be removed can be identified. An optical fiber cable identification method is provided.

[Appendix 13]
According to yet another aspect of the invention,
An optical fiber cable identification method for identifying an optical fiber cable to be removed when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state,
An optical fiber for communication, a jacket made of an insulating material and provided on a side circumference of the optical fiber, and a socket provided so as to be positioned slightly inward from a side circumferential surface of the jacket A pair of power supply lines for supplying power to the light emitting element, and the optical fiber cable to be removed in a laid state is connected to the power supply line and the input terminal drawn from the light emitting element. Attaching the socket;
Supplying power to the power supply line from a power supply device, supplying power to the light emitting element via the power supply line, allowing the light emitting element to emit light, and identifying an optical fiber cable to be removed; and An optical fiber cable identification method is provided.

DESCRIPTION OF SYMBOLS 10 Optical fiber cable 1 Optical fiber 2 Jacket | cover 4, 5 Power supply line 20 Optical fiber cable identification system 21 Light emitting element 22 Socket 23 Power supply apparatus

Claims (8)

An optical fiber for communication;
A jacket formed of an insulating material and provided on a side circumference of the optical fiber,
A pair of power supply lines for supplying power to the light emitting element when a socket having the light emitting element is attached to the side periphery of the outer jacket,
Each of the pair of power supply lines is an optical fiber cable including a conductor and an insulating layer formed of an insulating material and provided on a side periphery of the conductor. An optical fiber for communication;
A jacket formed of an insulating material and provided on a side circumference of the optical fiber,
An optical fiber cable in which a pair of power supply lines for supplying power to the light emitting element when a socket having the light emitting element is attached is further provided so as to be positioned slightly inside from the side peripheral surface of the jacket . An optical fiber cable having a communication optical fiber, a jacket formed of an insulating material and provided on a side periphery of the optical fiber, and a pair of power supply lines;
It has a light emitting element, is formed so as to be attachable to the optical fiber cable in a laid state, and is configured to be able to conduct the power supply line and the input terminal drawn from the light emitting element. Socket,
A power supply device for supplying power to the power supply line,
The pair of power supply lines includes a conductor and an insulating layer that is formed of an insulating material and covers a side circumference of the conductor, and is provided on a side circumference of the jacket.
When removing a predetermined optical fiber cable from a plurality of optical fiber cables in the laid state, the insulating layer of the power supply line of the optical fiber cable is broken in the optical fiber cable to be removed in the laid state. The socket is attached so that the conductor and the input terminal drawn out from the light emitting element are electrically connected, power is supplied from the power feeding device to the conductor of the power supply line, and the light emitting element is passed through the conductor. An optical fiber cable identification system that can identify the optical fiber cable to be removed by supplying electric power to the light emitting element to emit light. A communication optical fiber, a jacket formed of an insulating material and provided on a side circumference of the optical fiber, and a pair of power supplies provided so as to be positioned slightly inward from the side circumference surface of the jacket A fiber optic cable having a wire;
It has a light emitting element, is formed so as to be attachable to the optical fiber cable in a laid state, and is configured to be able to conduct the power supply line and the input terminal drawn from the light emitting element. Socket,
A power supply device for supplying power to the power supply line,
When removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state, the power supply line breaks the jacket of the optical fiber cable into the optical fiber cable to be removed in the laid state And the input terminal drawn out from the light emitting element is attached to the socket, power is supplied from the power feeding device to the power supply line, and power is supplied to the light emitting element through the power supply line. An optical fiber cable identification system that makes it possible to identify the optical fiber cable to be removed by causing the light emitting element to emit light. The socket is provided with two light emitting elements,
The optical fiber cable identification according to claim 3 or 4, wherein each of the two light emitting elements is provided such that a direction of a current flowing through one light emitting element is opposite to a direction of a current flowing through the other light emitting element. system. In the case where one light emitting element is provided, when the direction of the current emitted from the light emitting element is the + direction and the direction of the current flowing in the direction opposite to the + direction is the − direction, the power feeding device is in the + direction. The optical fiber cable identification system according to any one of claims 3 to 5, wherein the optical fiber cable identification system is configured so that power can be fed in both the negative and negative directions, or can be switched in a time-sharing manner between the positive and negative directions. . An optical fiber cable identification method for identifying an optical fiber cable to be removed when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state,
An optical fiber for communication; a jacket formed of an insulating material and provided on a side circumference of the optical fiber; a conductor and an insulating layer provided on a side circumference of the conductor; and a side circumference of the jacket A pair of power supply lines for supplying power to the light emitting element provided in the socket, and an optical fiber cable to be removed in a laid state from the conductor and the light emitting element included in the power supply line Attaching the socket so as to conduct the drawn input terminal; and
Supplying power from the power supply device to the conductor of the power supply line, supplying power to the light-emitting element via the conductor, and allowing the light-emitting element to emit light so that the optical fiber cable to be removed can be identified. And an optical fiber cable identification method. An optical fiber cable identification method for identifying an optical fiber cable to be removed when removing a predetermined optical fiber cable from a plurality of optical fiber cables in a laid state,
An optical fiber for communication, a jacket made of an insulating material and provided on a side circumference of the optical fiber, and a socket provided so as to be positioned slightly inward from a side circumferential surface of the jacket A pair of power supply lines for supplying power to the light emitting element, and the optical fiber cable to be removed in a laid state is connected to the power supply line and the input terminal drawn from the light emitting element. Attaching the socket;
Supplying power to the power supply line from a power supply device, supplying power to the light emitting element via the power supply line, allowing the light emitting element to emit light, and identifying an optical fiber cable to be removed; and An optical fiber cable identification method comprising:

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