JP2015099294A - Optical fiber cable and wiring method thereof, and optical communication module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow an optical fiber to be easily routed inside a housing even if a CPU and an EOM (Embedded Optical Module or optical communication module) are mounted close to each other on a base board, thus enabling speedup of a transmission signal by shortening a transmission distance of an electric signal.SOLUTION: There is provided a clamp member 24 that holds second covering portions 23b of a jacket 23 between and is attached to a casing 11 for housing a motherboard 13. With the clamp member 24 as a boundary, the jacket 23 and tension members 22 outside the casing 11 are left, and with the clamp member 24 as a boundary, the jacket 23 and the tension members 22 inside the casing 11 are removed. Thus an optical fiber cable 20 can become flexible inside the casing 11 and a satisfactory routing thereof can be implemented inside the casing 11. Consequently, a transmission distance of an electric signal is shortened, enabling speedup of a transmission signal. Furthermore, the optical fiber cable 20 can become robust outside the casing 11, increasing strength against, for example, folding.

Description

  The present invention relates to an optical fiber cable used in an optical communication module that transmits or receives an optical signal.

  Conventionally, an optical communication module is used for transmission or reception of an optical signal. The optical communication module is electrically connected to a central processing unit mounted on a mother board (substrate) of an information processing apparatus such as a computer or transmission apparatus. The optical communication module is connected to an optical fiber cable that extends toward another information processing apparatus. The optical communication module converts the optical signal from the optical fiber cable into an electrical signal and sends it to the central processing unit, or converts the electrical signal from the central processing unit into an optical signal and sends it to the optical fiber cable. To do.

  The optical fiber cable includes an optical fiber that transmits an optical signal, and a tension member that reduces stress acting on the optical fiber. The periphery of the optical fiber cable is covered with, for example, an outer skin made of silicone. Yes. Thereby, the optical fiber disposed between the information processing apparatuses can be protected from bending, pulling, and dust. An example of such a technique in which a tension member and an optical fiber are covered with an outer skin is described in Patent Document 1.

  The technique described in Patent Document 1 includes an optical cable (optical fiber cable) formed by covering a tension member and an optical fiber with a sheath, and an optical connector connected to an interface of an information processing apparatus at an end of the optical cable. Is attached. The optical connector includes a housing, and a photoelectric conversion unit and a substrate unit including electrode terminals are accommodated in the housing. And the front-end | tip part of an optical fiber is connected with the photoelectric conversion part via the optical fiber holding part (ferrule).

JP 2008-275950 A (FIGS. 2 and 3)

  Incidentally, in recent years, the transmission speed of communication signals between information processing apparatuses has been further increased. Therefore, a transmission state that is less susceptible to external disturbances such as electromagnetic noise is desired. In order to cope with further increase in speed without being affected by disturbances such as electromagnetic noise, the transmission distance of the electrical signal among communication signals (electrical signal and optical signal) between the information processing apparatuses is shortened. It is desirable. As a result, it is possible to minimize the influence of disturbance such as electromagnetic noise and cope with further increase in transmission speed.

  However, in the technique described in Patent Document 1 described above, an optical communication module (hereinafter simply referred to as an EOM (Embedded Optical Module)) is provided inside the housing of the optical connector. That is, the optical fiber cable itself including the optical connector adopts a structure provided with an EOM. Therefore, when the optical connector is connected to the interface of the information processing apparatus, the EOM built in the optical connector and the central processing unit (hereinafter simply referred to as CPU) mounted on the motherboard inside the casing of the information processing apparatus. ), And the transmission distance of the electric signal becomes long, and thus a device for increasing the transmission speed is required.

  The object of the present invention is to allow the optical fiber to be easily routed inside the housing even when the central processing unit and the optical communication module are mounted close to each other on the substrate, and to transmit the electric signal. It is to provide an optical fiber cable, a wiring method thereof, and an optical communication module that can cope with further increase in transmission signal speed.

  In one aspect of the present invention, an optical fiber cable used in an optical communication module, which is an optical fiber that transmits an optical signal, a tension member that is provided alongside the optical fiber, and covers the optical fiber and the tension member And a clamp member that sandwiches a portion corresponding to the tension member of the outer skin and is attached to a panel of the housing of the information processing apparatus, and the outer skin outside the housing with the clamp member as a boundary The tension member is left, and the outer skin and the tension member inside the housing are removed with the clamp member as a boundary.

  In another aspect of the present invention, the outer skin includes a first covering portion that covers the optical fiber, and a second covering portion that covers the tension member, and the first covering portion and the second covering portion. A thin-walled portion that guides the separation of the first covering portion and the second covering portion is provided.

  In another aspect of the present invention, a communication path that communicates the inside of the first covering portion and the inside of the second covering portion is provided.

  In another aspect of the present invention, there is provided an optical fiber cable wiring method used in an optical communication module, an optical fiber for transmitting an optical signal, a tension member provided alongside the optical fiber, the optical fiber, and the tension member. A cable preparing step for preparing a cable assembly having an outer cover covering the outer cover, and a clamp member that sandwiches a portion corresponding to the tension member of the outer cover and is attached to the panel of the housing of the information processing device, A cable clamping step for attaching the clamp member to an arbitrary part along the longitudinal direction of the cable assembly; and leaving the outer skin and the tension member outside the housing with the clamp member as a boundary; An outer skin removing step for removing the outer skin and the tension member inside the housing; A cable for attaching the clamp member to the panel after connecting the end of the optical fiber to the optical communication module, or connecting an end of the optical fiber to the optical communication module and then attaching the clamp member to the panel A wiring process.

  In another aspect of the present invention, an optical communication module that transmits or receives an optical signal, the optical fiber transmitting the optical signal, a tension member provided alongside the optical fiber, the optical fiber, and the tension An optical fiber cable having an outer skin covering the member and a clamp member that sandwiches a portion corresponding to the tension member of the outer skin and is attached to a panel of a housing of the information processing apparatus, with the clamp member as a boundary The outer skin and the tension member outside the housing are left, and the outer skin and the tension member inside the housing are removed with the clamp member as a boundary.

  According to the present invention, a clamp member that is attached to the panel of the casing of the information processing apparatus is provided by sandwiching a portion corresponding to the tension member of the casing, and the outer casing and the tension member outside the casing are left behind with the clamp member as a boundary. Then, the outer skin and the tension member inside the housing are removed with the clamp member as a boundary.

  By doing so, the optical fiber cable can be made flexible only with the optical fiber inside the housing, and the inside of the housing, that is, the wiring work can be improved. As a result, the transmission distance of the electric signal can be shortened to cope with further increase in the transmission signal speed. Further, since the optical fiber cable includes the outer skin and the tension member outside the housing, the optical fiber cable can be made strong, and can be bent and pulled, and further can be increased in strength against dust and the like.

1 is a schematic diagram illustrating an example of a communication system employing an optical fiber cable of the present invention. It is a perspective view explaining the detailed structure of the connection part of an optical fiber cable and information processing apparatus. It is a perspective view explaining the detailed structure of a cable assembly. It is a perspective view explaining the detailed structure of a clamp member. (A), (b), (c) is the a arrow view of FIG. 4, b arrow view, and c arrow view. It is a perspective view explaining a cable clamp process. It is a perspective view explaining an outer skin removal process.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic diagram showing an example of a communication system employing the optical fiber cable of the present invention, FIG. 2 is a perspective view illustrating a detailed structure of a connection portion between the optical fiber cable and the information processing apparatus, and FIG. FIG. 4 is a perspective view for explaining the detailed structure of the assembly, FIG. 4 is a perspective view for explaining the detailed structure of the clamp member, and FIGS. 5 (a), 5 (b), and 5 (c) are views taken in the direction of arrow a in FIG. An arrow view and a c arrow view are respectively shown.

  As shown in FIG. 1, the communication system 10 is configured to connect an information processing apparatus A and an information processing apparatus B with an optical fiber cable 20 and transmit and receive optical signals to and from each other via the optical fiber cable 20. Has been. Each of the information processing apparatuses A and B includes a casing (housing) 11 that forms an outline of the information processing apparatuses A and B. Inside the casing 11 is accommodated a mother board (substrate) 13 on which a CPU (Central Processing Unit) 12 is mounted. On the mother board 13, an EOM (optical communication module) 14 is mounted together with the CPU 12.

  The CPU 12 and the EOM 14 are arranged close to each other on the mother board 13 and are electrically connected via a printed wiring 13a printed on the mother board 13 as shown in FIG. As described above, by arranging the CPU 12 and the EOM 14 in proximity to each other on the mother board 13, it is not necessary to be electrically connected separately using a long electric wire or the like, and it is electrically connected to the printed wiring 13a having a relatively short length. Connectable. Thereby, the transmission distance of an electric signal can be shortened and it can respond to the increase in the speed of a transmission signal.

  The end of an optical fiber 21a (see FIG. 3) that forms the optical fiber cable 20 is connected to the side of the EOM 14 opposite to the CPU 12 side via the fiber array 15. Here, the fiber array 15 is formed in a substantially rectangular parallelepiped shape by, for example, colorless and transparent quartz (Silica glass), and the ends of the plurality of optical fibers 21a are accurately aligned and held.

  The EOM 14 includes a vertical cavity surface emitting laser that functions as a semiconductor optical device and a photodiode (none of which are shown). These semiconductor optical elements are arranged on the CPU 12 side of the EOM 14. The EOM 14 includes an optical block (not shown). This optical block is formed in a predetermined shape with a transparent resin material or glass material, and converts the path of the optical signal from the optical fiber 21a and the optical signal from the vertical cavity surface emitting laser at an angle of approximately 90 °. A reflecting surface (not shown). This optical block is arranged on the optical fiber 21a side of the EOM 14.

  A front panel 11a is provided in the casing 11 of each of the information processing apparatuses A and B. The front panel 11a is formed with a mounting portion 11b to which a clamp member 24 that forms the optical fiber cable 20 is mounted. As shown in FIG. 2, the mounting portion 11b is formed so as to be cut out with a predetermined width from the opening (upper side in the drawing) of the front panel 11a. That is, the clamp member 24 is attached to the front panel 11a by being inserted into the mounting portion 11b from the opening of the front panel 11a toward the bottom portion (lower portion in the figure) to which the mother board 13 is fixed. .

  The strength of the optical fiber cable 20 outside the casing 11 with respect to the clamp member 24 is increased against external stress. On the other hand, the optical fiber cable 20 inside the casing 11 with the clamp member 24 as a boundary is weak in strength against external stress and has flexibility.

  As shown in FIGS. 2 and 3, the optical fiber cable 20 includes an eight-core tape core 21, a pair of tension members 22 provided on both sides of the tape core 21, and a tape core 21 and A jacket 23 covering the periphery of the tension member 22 and a clamp member 24 sandwiching the jacket 23 are provided. Here, the optical fiber cable 20 outside the casing 11 with the clamp member 24 as a boundary becomes a high-strength portion 20a, and the optical fiber cable 20 inside the casing 11 with the clamp member 24 as a boundary is a tape core wire exposed portion. (Low strength portion) 20b.

  As shown in FIG. 3, the tape core wire 21 is composed of eight (eight cores) optical fibers 21a and a tape coating 21b that collects these optical fibers 21a. Similarly, the optical fibers 21a constituting the tape core wire 21 are each formed with an outer diameter of about 125 μm and transmit optical signals. The tape coating 21b is formed of a thin film made of, for example, polyvinyl chloride or silicone, and holds the optical fibers 21a side by side.

  A pair of tension members 22 are provided on both sides of the tape core 21 so as to be aligned with the tape core 21. Each tension member 22 is formed of, for example, a metal wire made of carbon steel such as a piano wire, and is arranged at a predetermined interval with respect to the tape core wire 21. These tension members 22 are held by the jacket 23 together with the tape core wire 21, and the tape core wire 21 and each tension member 22 are also bent and deformed as the jacket 23 is bent and deformed.

  Here, the tension member 22 made of a metal wire has a much higher rigidity than the optical fiber 21a made of glass fiber. This prevents each optical fiber 21a from being broken or broken from a load in the bending direction or pulling direction acting on the optical fiber cable 20. In this way, each tension member 22 plays a role of reducing the stress acting on each optical fiber 21a and protecting each optical fiber 21a.

  The periphery of the tape core wire 21 and each tension member 22 is covered with a jacket 23 as an outer skin. The jacket 23 is formed, for example, in a hollow shape using polyvinyl chloride or the like, and includes a first covering portion 23 a that covers the tape core wire 21 and a pair of second covering portions 23 b that respectively cover the tension members 22. Yes.

  Between the 1st coating | coated part 23a and each 2nd coating | coated part 23b, the thin part 23c which makes the thickness dimension of the jacket 23 thin is provided. The thin portion 23c guides the separation of the first covering portion 23a and the second covering portion 23b when forming the tape core wire exposed portion 20b (see FIG. 2). That is, for example, the operator applies a force so that the first covering portion 23a and the second covering portion 23b are separated by placing a tool or a nail on the thin portion 23c and applying a force to the first covering portion 23a and the second covering portion 23b. The part 23b is easily torn along the thin part 23c.

  Each thin portion 23c arranged on both sides of the first covering portion 23a includes a communication passage 23d that allows the inside of the first covering portion 23a to communicate with the inside of each second covering portion 23b. Thereby, the 1st coating | coated part 23a can be easily divided into 1st division body BU1 and 2nd division body BU2 (refer FIG. 7) by tearing the 1st coating | coated part 23a and the 2nd coating | coated part 23b. . Therefore, the “outer skin removing step” described later can be simplified.

  In addition, each communicating path 23d of each thin part 23c can also be omitted. In this case, the “outer skin removal step” can be simplified by making each thin portion 23 c thinner. However, when the thin portions 23c are thinned, the minimum strength required for the jacket 23 is taken into consideration in order to prevent the jacket 23 from being naturally broken due to the bending deformation of the jacket 23.

  As shown in FIGS. 4 and 5, the clamp member 24 includes a first clamp body 24 a and a second clamp body 24 b having a substantially C-shaped cross section formed by injection molding of plastic or the like. As shown in FIG. 5B, a hinge portion 24c is integrally provided on one side (left side in the drawing) along the radial direction of each clamp body 24a, 24b. Further, an engaging claw 24d is integrally provided on the other side (right side in the drawing) along the radial direction of each clamp body 24a, 24b.

  Thereby, the engaging claw 24d side of the clamp member 24 is configured to open with the hinge portion 24c as a rotation center. Then, the engagement claw 24d side of the clamp member 24 is opened, the jacket 23 of the optical fiber cable 20 is mounted inside the clamp member 24, the engagement claw 24d is engaged, and the opening portion is closed, The clamp member 24 is fixed to an arbitrary portion along the longitudinal direction of the jacket 23.

  A first cushion member 25a and a second cushion member 25b for holding the jacket 23 are respectively mounted inside the clamp bodies 24a and 24b (shaded portions in FIGS. 4 and 5). These cushion members 25a and 25b are formed in a predetermined shape by a material softer than the clamp bodies 24a and 24b, for example, an elastic material such as rubber. Here, also in each cushion member 25a, 25b, the cross section is formed in the substantially C shape similarly to each clamp main body 24a, 24b.

  Each cushion member 25a, 25b includes a concave portion 25c and a pair of convex portions 25d protruding from both sides of the concave portion 25c. The concave portion 25c forms a wide space S inside the clamp member 24 as shown in FIG. 5 (b) with the clamp member 24 closed. And in the said wide space S, the 1st coating | coated part 23a (tape core wire 21) of the jacket 23 is arrange | positioned in the non-contact state with respect to the recessed part 25c. Thereby, when the clamp member 24 is closed, no stress is applied to the first covering portion 23a (tape core wire 21), so that the tape core wire 21 can be reliably protected.

  Each convex portion 25d sandwiches the portion corresponding to each second covering portion 23b, that is, each tension member 22 of the jacket 23, with the clamp member 24 closed. And the surface of each convex part 25d is formed in the substantially waveform shape, as shown to Fig.5 (a), (c). Thereby, even if an external force acts on the second covering portions 23b sandwiched between the convex portions 25d and is pulled in the longitudinal direction, the second covering portions 23b are not easily detached from the clamp member 24.

  A pair of mounting grooves 26a and 26b extending in the short direction of the clamp member 24 are provided at substantially intermediate portions along the longitudinal direction of the clamp bodies 24a and 24b. The mounting grooves 26a and 26b are provided on the hinge portion 24c side and the engaging claw 24d side, respectively, and are disposed to face each other with the wide space S interposed therebetween. When the clamp member 24 is mounted on the mounting portion 11b, the front panel 11a enters the mounting grooves 26a and 26b without rattling (see FIG. 2). That is, the groove width dimension of each attachment groove 26a, 26b is set to be slightly smaller than the plate thickness dimension of the front panel 11a.

  Here, the tape core wire 21, each tension member 22, the jacket 23, and the clamp member 24 constitute an optical fiber cable according to the present invention. Hereinafter, the optical fiber cable 20 is wired to the information processing apparatus A (B). The method will be described in detail with reference to the drawings.

  6 is a perspective view for explaining the cable clamping step, and FIG. 7 is a perspective view for explaining the outer skin removing step.

[Cable preparation process]
As shown in FIG. 6, first, a cable assembly CA including a tape core wire 21, tension members 22, and a jacket 23 is prepared. Here, the cable assembly CA is formed in advance in the cable forming step (separate step), and the cable assembly CA is prepared by cutting the cable assembly CA to a required length. .

[Cable clamping process]
Next, the clamp member 24 is prepared, and the engagement claw 24d side of the clamp member 24 is opened with the hinge portion 24c as a rotation center. The clamp member 24 is formed in advance in the clamp member forming step (separate step). Thereafter, the cable assembly CA is attached to the inside of the clamp member 24 from the opening portion of the clamp member 24, and the clamp member 24 is disposed at an arbitrary portion along the longitudinal direction of the cable assembly CA.

  Next, as shown by a broken line arrow (1) in the figure, the opening of the clamp member 24 is closed and the engagement claw 24d is engaged, whereby the mounting of the clamp member 24 to the cable assembly CA is completed. At this time, the clamp member 24 sandwiches each second covering portion 23b of the jacket 23, but does not sandwich the first covering portion 23a, so that no stress acts on the tape core wire 21.

  Here, as shown in FIG. 6, the mounting position of the clamp member 24 with respect to the cable assembly CA is determined based on the end of the cable assembly CA as a reference within the casing 11 (see FIG. 2). Consider the length L. Specifically, the clamp member 24 is mounted in consideration of the distance from the clamp member 24 to the EOM 14 inside the casing 11 with the clamp member 24 mounted on the front panel 11a (see FIG. 2). Try to determine the position.

[Skin removal process]
Next, as shown in FIG. 7, the jacket 23 and the tension members 22 are left on the right side in the figure along the longitudinal direction of the jacket 23, that is, outside the casing 11 (see FIG. 2) with the clamp member 24 as a boundary. The jacket 23 and the tension members 22 arranged inside the casing 11 are removed on the left side in the figure along the longitudinal direction of the jacket 23, that is, with the clamp member 24 as a boundary.

  Specifically, as shown by a broken line arrow (2) in the figure, the cutting tool T (not shown in detail) for the optical fiber cable is placed on the end side (left side in the figure) of the cable assembly CA in the clamp member 24. Set to. Then, the tape core wire 21 in the cable assembly CA is left, and the jacket 23 and each tension member 22 in other portions are cut. Thereafter, the second covering portions 23b of the jacket 23 are pulled apart with the thin-walled portions 23c of the jacket 23 as boundaries.

  Thereby, each tension member 22 is separated from the tape core wire 21 together with each second covering portion 23b as indicated by a broken line arrow (3) in the figure. Moreover, after the 1st coating | coated part 23a is divided | segmented into 1st division body BU1 and 2nd division body BU2, it is isolate | separated from the tape core wire 21, respectively. And the high intensity | strength part 20a is formed in the outer side of the casing 11 of the cable assembly CA, and the tape core wire exposed part 20b is formed in the inner side of the casing 11 of the cable assembly CA.

  In this way, by providing the communication passages 23d (see FIG. 3) inside the thin portions 23c while making the thin portions 23c thin, the jacket 23 is connected to the second cover portions 23b including the tension members 22 and the first cover. The part 23a can be separated (divided into four parts) into the first divided body BU1 and the second divided body BU2, and the outer skin removal work can be easily performed.

  Thereafter, the end portion of the tape core wire 21 is stepped to expose each of the eight optical fibers 21a (see FIG. 3), and the exposed portion of each optical fiber 21a is replaced with the fiber array 15 (FIG. 7). To the two-dot chain line). Thereby, the optical fiber cable 20 in which the fiber array 15 is attached to the end portion of the tape core wire 21 is completed.

[Cable wiring process]
Next, the clamp member 24 forming the optical fiber cable 20 is attached to the attachment portion 11b (see FIG. 2) of the front panel 11a. Specifically, the front panel 11a enters the mounting grooves 26a and 26b of the clamp member 24 (see FIG. 2). Here, by pressing the clamp member 24, the clamp member 24 is attached to the normal position of the mounting portion 11b. Subsequently, the fiber array 15 is attached to the EOM 14. Thereby, the end portions of the optical fibers 21a (see FIG. 3) are connected to the EOM 14 and optically coupled to each other, and the wiring of the optical fiber cable 20 to the information processing apparatus A (B) is completed.

  However, when there is a margin in the length of the exposed portion 20b of the tape core wire, the clamp member 24 may be attached to the mounting portion 11b after the fiber array 15 is connected to the EOM 14 contrary to the above. .

  Note that the following wiring methods are different from those described above.

  Using the cutting tool T, the tape core wire 21 of the optical fiber cable 20 is left, and the jacket 23 and each tension member 22 in other portions are cut.

  The first covering portions 23a, the second covering portions 23b, and the tension members 22 are separated from the tape core wires 21 by separating the second covering portions 23b of the jacket 23 from the thin-walled portions 23c of the jacket 23. The tape core wire 21 is the only structure.

  The end of each optical fiber 21 a that is only the tape core 21 is aligned with the EOM 14, and the end of each optical fiber 21 a is mounted and fixed to the EOM 14.

  The EOM 14 to which the tape core wire 21 is mounted and fixed is mounted in the casing 11, and the clamp member 24 is mounted on the portion of the optical fiber cable 20 having the jacket 23 and the tension member 22. Thereafter, the clamp member 24 is fixed to the mounting portion 11 b of the casing 11.

  As described above in detail, according to the optical fiber cable 20 according to the present embodiment, a portion of the jacket 23 corresponding to each tension member 22, i.e., each second covering portion 23 b is sandwiched and a casing that houses the mother board 13. 11 is provided with a clamp member 24 attached to the mounting portion 11b of the front panel 11a, leaving the jacket 23 and each tension member 22 outside the casing 11 with the clamp member 24 as a boundary, and the inside of the casing 11 with the clamp member 24 as a boundary. The jacket 23 and each tension member 22 were removed.

  By doing so, the optical fiber cable 20 can be made flexible only as the optical fiber 21a (tape core wire 21) inside the casing 11, and the inside of the casing 11, that is, the wiring work can be improved. can do. As a result, the transmission distance of the electric signal, that is, the length of the printed wiring 13a can be shortened to cope with further increase in the transmission signal speed. Furthermore, since the optical fiber cable 20 includes the jacket 23 and the tension members 22 outside the casing 11, the optical fiber cable 20 can be made strong and eventually bent or pulled, and further increased in strength against dust and the like. it can.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the above embodiment, the tape core 21 formed by surrounding the eight optical fibers 21a with the tape coating 21b is shown. However, the present invention is not limited to this, and the tape coating 21b is omitted. It is also possible to employ one in which each optical fiber 21a is exposed to the outside. Further, the number of optical fibers 21a is not limited to eight.

  Further, in the above-described embodiment, as shown in FIG. 3, an annular gap is present between each tension member 22 and each second covering portion 23 b, but the present invention is not limited to this. Instead, the tension members 22 and the second covering portions 23b may be brought into close contact with each other and integrated. Further, according to the strength required for the jacket 23, each tension member and each second covering portion are formed of the same material (for example, hard plastic), and the two are completely integrated so that the boundary portion is not known. You may make it.

  Furthermore, in the said embodiment, although what cut | disconnected the other part which left the tape core wire 21 using the cutting tool T for optical fiber cables was shown, this invention is shown. Not limited to this. For example, a cutting blade (not shown) is provided on the side of the fiber array 15 (see FIG. 7) of each clamp body 24a, 24b forming the clamp member 24, and at the same time the clamp member 24 is closed, the tape core wire 21 is left. Other portions may be cut. In this case, the cutting tool T and the process using the cutting tool T can be omitted.

10 Communication System 11 Casing (Case)
11a Front panel (panel)
11b Mounting part 12 CPU (central processing unit)
13 Motherboard (substrate)
13a Printed wiring 14 EOM (Optical communication module)
DESCRIPTION OF SYMBOLS 15 Fiber array 20 Optical fiber cable 20a High intensity | strength part 20b Tape core wire exposed part 21 Tape core wire 21a Optical fiber 21b Tape coating 22 Tension member 23 Jacket (outer skin)
23a 1st coating | coated part 23b 2nd coating | coated part 23c Thin-walled part 23d Communication path 24 Clamp member 24a 1st clamp main body 24b 2nd clamp main body 24c Hinge part 24d Engagement claw 25a 1st cushion member 25b 2nd cushion member 25c Concave 25d Convex Part 26a, 26b Mounting groove A, B Information processing device BU1 First divided body BU2 Second divided body CA cable assembly S Wide space T Cutting tool

Claims (9)

An optical fiber cable used in an optical communication module,
An optical fiber for transmitting an optical signal;
A tension member provided alongside the optical fiber;
A sheath covering the optical fiber and the tension member;
A clamp member that sandwiches a portion of the outer skin corresponding to the tension member and is attached to a panel of a housing of the information processing device;
With
An optical fiber cable, wherein the outer skin and the tension member outside the housing are left behind the clamp member, and the outer skin and the tension member inside the housing are removed across the clamp member. The optical fiber cable according to claim 1,
The outer skin includes a first covering portion that covers the optical fiber, and a second covering portion that covers the tension member,
An optical fiber cable in which a thin portion for inducing separation of the first covering portion and the second covering portion is provided between the first covering portion and the second covering portion. The optical fiber cable according to claim 2,
An optical fiber cable comprising a communication path that allows the inside of the first covering portion to communicate with the inside of the second covering portion. An optical fiber cable wiring method used in an optical communication module,
A cable preparation step of preparing a cable assembly having an optical fiber for transmitting an optical signal, a tension member provided alongside the optical fiber, and an outer sheath covering the optical fiber and the tension member;
A portion of the outer skin corresponding to the tension member is sandwiched to prepare a clamp member to be attached to the panel of the housing of the information processing apparatus, and the clamp member is attached to an arbitrary portion along the longitudinal direction of the cable assembly A cable clamping process,
A skin removing step of leaving the outer skin and the tension member outside the housing with the clamp member as a boundary, and removing the outer skin and the tension member inside the housing with the clamp member as a boundary;
A cable for attaching the clamp member to the panel after connecting the end of the optical fiber to the optical communication module, or connecting an end of the optical fiber to the optical communication module and then attaching the clamp member to the panel Wiring process;
An optical fiber cable wiring method comprising: In the wiring method of the optical fiber cable according to claim 4,
The outer skin includes a first covering portion that covers the optical fiber, and a second covering portion that covers the tension member,
A method of wiring an optical fiber cable, wherein a thin portion for inducing separation of the first covering portion and the second covering portion is provided between the first covering portion and the second covering portion. In the optical fiber cable wiring method according to claim 5,
A method of wiring an optical fiber cable, comprising a communication path that allows communication between the inside of the first covering portion and the inside of the second covering portion. An optical communication module that transmits or receives an optical signal,
An optical fiber for transmitting the optical signal;
A tension member provided alongside the optical fiber;
A sheath covering the optical fiber and the tension member;
A clamp member that sandwiches a portion of the outer skin corresponding to the tension member and is attached to a panel of a housing of the information processing device;
Comprising an optical fiber cable having
The optical communication module, wherein the outer skin and the tension member outside the housing are left behind the clamp member, and the outer skin and the tension member inside the housing are removed across the clamp member. The optical communication module according to claim 7.
The outer skin includes a first covering portion that covers the optical fiber, and a second covering portion that covers the tension member,
An optical communication module, wherein a thin portion for inducing separation of the first covering portion and the second covering portion is provided between the first covering portion and the second covering portion. The optical communication module according to claim 8.
An optical communication module comprising a communication path that allows the inside of the first covering portion and the inside of the second covering portion to communicate with each other.

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