JP2008076760A - Identification indication method of optical cable core wire and indication article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indication method by which it is discriminated or determined at a glance as to what number a fiber is or where it is arranged and what color it is, for the multi-core fibers of an optical cable core wire, and to provide an indication article. <P>SOLUTION: In the method of discriminating and indicating the fiber of the optical cable incorporating the multitude of fibers therein, the optical cable includes a plurality of slots equally formed in a groove shape along its outer circumference, a plurality of thin flat tape ribbons laminated and arranged in the slots, and the plurality of fibers arranged in parallel in one surface in the tape ribbons. The method indicates all the data of (1) slot numbers by which a plurality of slots are serially numbered; (2) tape ribbon numbers by which the plurality of tape ribbons stacked and arranged in the slots are serially numbered for each of the slots; and (3) the arrangement number in each tape ribbon, for each fiber included in each tape ribbon, the color indication for each fiber, and the total fiber serial number, in a list form. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to the identification display of optical fiber tape cores and strands. More specifically, with the recent increase in the number of optical fiber cores, it has become difficult to identify and distinguish each of a number of strands. The present invention relates to a display method and a display object for improving the complexity and labor of identifying those strands in field work and design work handling optical cables.

FIG. 3 is a diagram showing a structural example of an optical cable that is currently used. FIG. 3 (1) is a structural diagram of a cross section of a 600 core cable, and FIG. 3 (2) is a structural diagram of a cross section of a 400 core cable. .
The 600-core cable shown in FIG. 3 (1) has a tension member 61 made of a metal twisted wire or FRP rod at the center, and a spacer 62 made of synthetic resin fills the periphery of the tension member 61. Is provided.

  The spacer 62 is provided with slots 63 in which a plurality of grooves (concave grooves) are spirally or linearly formed in the longitudinal direction on the outer peripheral side thereof. A plurality of core wires 64 are arranged in a stacked state. The outer periphery of the 600-core cable is covered with a sheath 65 made of polyethylene or the like via a presser winding 66.

  The optical fiber 8-core tape core wire 64 used in the 600-core cable has a structure as shown in FIG. 4 (1), and a plurality of optical fiber strands are arranged in parallel on a plane to It is formed by being covered with a collective coating layer made of a curable resin or the like. Further, the 600-core cable includes a groove No. 1 tracer mark 68, a groove No. 2 tracer mark 69, and a tear string 67 as other constituent elements as shown in FIG. Note that the eighth groove of the 600-core cable has a shallower groove than other grooves, but in such a case, an inclusion (such as a dummy tape) may be mounted.

  The structure of 400-fiber cable in FIG. 3 (2) is the same as the structure of 600-fiber cable in FIG. 3 (1) except that the number of cores is the same. 41, spacer 42, slot (spiral groove portion) 43, optical fiber ribbon 44, holding winding 46, sheath 45, groove No. 1 tracer mark 48, groove No. 2 tracer mark 49, and tear string 47. It is configured.

Now, problems of the prior art will be described with reference to FIGS.
FIG. 4A is a structural diagram of a cross section of an 8-core tape core wire, and has a configuration in which eight strands No. 1 to No. 8 are arranged in parallel in a planar shape. The left figure of FIG. 4 (3) is a configuration diagram of an 80-fiber optical unit, and this 80-fiber optical unit has 80 wires of “8 (wires) × 10 (tape wires)”. In the slot, a unit structure in which ten 8-core ribbons are stacked one above the other at positions No. 1 to No. 10 is provided.

  FIG. 4 (2) is a strand identification table used for identifying optical fiber strands in the 80-fiber optical unit in the left diagram of FIG. 4 (3). This strand identification table is conventionally used for optical fiber connection work and management, and is a standard list showing tape core numbers, strand numbers, and colors. From this list, it was possible to discriminate to some extent as to what position the wire was placed and what color it was.

  However, in a multi-fiber optical cable, for example, in an 80-fiber optical unit, the number of strands is 80, and which strand comes to what order and what color it is. ) It was difficult to distinguish at a glance from the list. In recent years, the number of strands has increased significantly due to the trend of increasing the number of cores of optical cables. When the number of cores is 400, 600, 1000, etc., the number of cores (strands) is too large. 4 (2), it was impossible to determine which strand was in what order and what color it was.

Examples of patent documents including technical contents related to the increase in the number of optical cables and the identification of cores include the following.
JP 2004-309840 A JP 2004-309841 A JP 2004-266886 A

  As the number of optical fiber cores increases, the number of strands (cores) increases, and at the work site, it is possible to determine at a glance which strand comes first and what color it is. Was difficult. Therefore, when performing optical cable connection work, management work, etc., it is difficult to identify each wire, so that it is easy to misidentify, and the efficiency of the connection work is extremely poor.

  The optical cable core identification display method and display object according to the present invention have been made in view of the above-described conventional problems, and the number of which strand is the order of the multi-core strands of the optical cable core. An object of the present invention is to provide a display method and a display object that can be identified or discriminated at a glance as to where it is arranged and what color it is.

[1] A method for identifying and displaying an optical cable containing a large number of strands,
The optical cable includes a plurality of slots formed in a uniform groove shape along an outer periphery thereof, a plurality of thin and flat tape cores arranged in the slots, and the tape cores. A plurality of strands arranged in parallel in a single plane, and
(1) Slot numbers with serial numbers for multiple slots,
(2) Tape core numbers that are serially numbered for each slot for a plurality of tape cores that are stacked in the slot;
(3) Optical cable that displays all data of the arrangement number within each tape core, the color display for each strand, and the total strand serial number for each strand included in each tape in a list format The element identification method was used.

[2] A display object for identifying and displaying an optical cable containing a large number of strands,
The optical cable includes a plurality of slots formed in a uniform groove shape along an outer periphery thereof, a plurality of thin and flat tape cores arranged in the slots, and the tape cores. A plurality of strands arranged in parallel in a single plane, and
(1) Slot numbers with serial numbers for multiple slots,
(2) Tape core numbers that are serially numbered for each slot for a plurality of tape cores that are stacked in the slot;
(3) Optical cable that displays all data of the arrangement number within each tape core, the color display for each strand, and the total strand serial number for each strand included in each tape in a list format It was set as the display thing for the element | wire identification identification display.

According to the optical cable core identification display method and display object according to the present invention, which strands are arranged in what order and where in the multi-core strands of the optical cable core, and in what color As for the above, it was possible to provide a method and a display that can be identified or discriminated at a glance. By this display method and display object, the following special effects are produced.
-The style can be adapted to the field work, and work efficiency can be improved.
・ Useful for preventing accidents caused by misidentification.
-Can be used in a wide range from construction planning and design to daily maintenance.
・ It is easy and easy to see, and can display the core wire with a small number of sheets.
・ Can be used jointly with other carriers.

An embodiment of an optical cable core identification display method and display object according to the present invention will be described with reference to FIGS.
FIG. 1 is an “SM type 4-core tape core wire identification table” according to an embodiment of the present invention. Here, the optical cable to which the present invention is applied is of a 300-fiber type, and is provided with 15 slots for arranging the tape core wires evenly on the circumferential side. In addition, each slot of this optical cable is configured as a 20-fiber optical unit, and one slot is a four-layer tape core having four strands and is laminated in five stages such as No. 1 to No. 5. The structure is arranged in each slot.

  The list of FIG. 1 shows (1) slot numbers with serial numbers for a plurality of slots, and (2) tapes with serial numbers for each slot of a plurality of tape cores arranged in a stack in the slots. All data of the core number, (3) the arrangement number in each tape core, the color display for each strand and the total strand serial number for each strand included in each tape in a tabular format It is the element identification display thing of the optical cable displayed.

In the list of FIG. 1, the slot No. 1 of the 4-fiber ribbon is displayed as follows.
Tape No. Wire No. 1 2 3 4
1 blue / 1 white / 2 blue / 3 gray / 4
2 Yellow / 5 White / 6 Yellow / 7 Gray / 8
3 Green / 9 White / 10 Green / 11 Gray / 12
4 Red / 13 White / 14 Red / 15 Gray / 16
5 Purple / 17 White / 18 Purple / 19 Gray / 20

Further, the slot No. 15 of the 4-fiber ribbon was displayed as follows.
Tape No. Wire No. 1 2 3 4
1 Blue / 281 White / 282 Blue / 283 Gray / 284
2 Yellow / 285 White / 286 Yellow / 287 Gray / 288
3 Green / 289 White / 290 Green / 291 Gray / 292
4 Red / 293 White / 294 Red / 295 Gray / 296
5 Purple / 297 White / 298 Purple / 299 Gray / 300

  Next, FIG. 2 is an “SM type 8 core tape core wire identification table” according to another embodiment of the present invention. Here, the optical cable to which the present invention is applied is a 1000-core type, and is provided with 13 slots on the outer periphery side for arranging the tape core wires. In addition, each slot of this optical cable is configured as an 80-fiber optical unit, and each slot is composed of an 8-core tape core having 8 strands and laminated in 10 stages such as No. 1 to No. 10. The structure is arranged in slots.

In the list of FIG. 2, the slot number 1 of the 8-fiber ribbon is indicated as follows.
Tape No. Wire No. 1 2 3 4 5 6 7 8
1 blue / 1 white / 2 white / 3 peach / 4 yellow / 5 white / 6 white / 7 peach / 8
2 Green / 9 White / 10 White / 11 Peach / 12 Red / 13 White / 14 White / 15 Peach / 16
3 Purple / 17 White / 18 White / 19 Peach / 20 Blue / 21 White / 22 White / 23 White / 24
4 Yellow / 25 White / 26 White / 27 White / 28 Green / 29 White / 30 White / 31 White / 32
5 Red / 33 White / 34 White / 35 White / 36 Purple / 37 White / 38 White / 39 White / 40
6 Blue / 41 White / 42 White / 43 Water / 44 Yellow / 45 White / 46 White / 47 Water / 48
7 Green / 49 White / 50 White / 51 Water / 52 Red / 53 White / 54 White / 55 Water / 56
8 Purple / 57 White / 58 White / 59 Water / 60 Blue / 61 White / 62 White / 63 Water / 64
9 Yellow / 65 White / 66 White / 67 Brown / 68 Green / 69 White / 70 White / 71 Brown / 72
10 Red / 73 White / 74 White / 75 Brown / 76 Purple / 77 White / 78 White / 79 Brown / 80

Further, slot No. 12 of the 8-fiber ribbon is indicated as follows.
Tape No. Wire No. 1 2 3 4 5 6 7 8
1 Blue / 881 White / 882 White / 883 Peach / 884 Yellow / 885 White / 886 White / 887 Peach / 888
2 Green / 889 White / 890 White / 891 Peach / 892 Red / 893 White / 894 White / 895 Peach / 896
3 Purple / 897 White / 898 White / 899 Peach / 900 Blue / 901 White / 902 White / 903 White / 904
4 Yellow / 905 White / 906 White / 907 White / 908 Green / 909 White / 910 White / 911 White / 912
5 Red / 913 White / 914 White / 915 White / 916 Purple / 917 White / 918 White / 919 White / 920
6 Blue / 921 White / 922 White / 923 Water / 924 Yellow / 925 White / 926 White / 927 Water / 928
7 Green / 929 White / 930 White / 931 Water / 932 Red / 933 White / 934 White / 935 Water / 936
8 Purple / 937 White / 938 White / 939 Water / 940 Blue / 941 White / 942 White / 943 Water / 944
9 Yellow / 945 White / 946 White / 947 Brown / 948 Green / 949 White / 950 White / 951 Brown / 952
10 Red / 953 White / 954 White / 955 Brown / 956 Purple / 957 White / 958 White / 959 Brown / 960

  As is apparent from the display example shown in FIG. 1 or FIG. 2, the optical fiber element identification method and display object according to the present invention are: (1) Slot numbers with serial numbers for a plurality of slots; (2) Tape core numbers that are serially numbered for each slot for a plurality of tape cores stacked in a slot, (3) Within each tape core for each strand contained in each tape core All the data of the arrangement number, the color display for each strand and the total strand serial number are displayed in a list format.

  These data can be easily input by using a personal computer device and spreadsheet software, and it is convenient to store and manage various data in the personal computer device. Moreover, when displaying these data, you may use as a paper-like display thing by printout, printing, etc., and you may display and use on displays, such as a portable terminal and a personal computer device. Such a display object to which the present invention is applied is preferably in a form that is easy for an operator to carry and easy to carry and use at a work site.

According to the results of carrying out the access optical cable maintenance work by the workers having the list using the identification display of the optical cable core according to the present invention, it has been found that the following practical effects can be obtained.
・ It has become much easier to visually identify strands, making it easier to plan and design for the use of multi-core cables.
・ Cost reduction was achieved due to improved work efficiency.
・ Working with the paper surface, which is the display object, makes it possible to confirm the optical cable core wire (elementary wire) without fail and eliminate misidentification.
-Can be used jointly with other telecommunications carriers and has a wide range of applications from joint construction design to core management.
・ Improvement of customer service after lending the core wire improves work efficiency, shortens line down time, and helps prevent accidents such as erroneous disconnection and incorrect connection.
-Great efficiency can be expected in optical cable design work, field work, core management work, etc.
・ Improve the working environment and improve the corporate image.

It is a figure which shows one Embodiment in the strand identification display method or display thing of the optical cable of this invention. It is a figure which shows another embodiment in the strand identification display method or display thing of the optical cable of this invention. It is a figure which shows the structural example of an optical cable by a cross section, FIG. 3 (1) is a structural diagram of a 600 core cable, FIG. 3 (2) is a structural diagram of a 400 core cable. FIG. 4 (1) is a diagram showing a structure of an 8-core tape core and a conventional identification display example. FIG. 4 (1) is a cross-sectional view of the 8-core tape core, and FIG. 4 (2) is an 8-core tape. FIG. 4 (3) is a conventional strand identification table used for identifying optical fiber strands in a core wire, and FIG. 4 (3) shows tape core wires in slots for 80-fiber optical units and 40-fiber optical units. It is a figure which shows the structure of these laminated arrangement.

Explanation of symbols

61, 41 Tension member 62, 42 Spacer 63, 43 Slot (groove)
64, 44 Optical fiber ribbon 65, 45 Sheath 66, 46

Claims (2)

A method for identifying and displaying an optical cable containing a large number of strands,
The optical cable includes a plurality of slots formed in a uniform groove shape along an outer periphery thereof, a plurality of thin and flat tape cores arranged in the slots, and the tape cores. A plurality of strands arranged in parallel in a single plane, and
(1) Slot numbers with serial numbers for multiple slots,
(2) Tape core numbers that are serially numbered for each slot for a plurality of tape cores that are stacked in the slot;
(3) For each strand included in each tape core, display all data of arrangement number in each tape core, color display for each strand and total strand serial number in a list format A method for identifying and displaying a strand of an optical cable. A display object for identifying and displaying an optical cable containing a large number of strands,
The optical cable includes a plurality of slots formed in a uniform groove shape along an outer periphery thereof, a plurality of thin and flat tape cores arranged in the slots, and the tape cores. A plurality of strands arranged in parallel in a single plane, and
(1) Slot numbers with serial numbers for multiple slots,
(2) Tape core numbers that are serially numbered for each slot for a plurality of tape cores that are stacked in the slot;
(3) For each strand included in each tape core, display all data of arrangement number in each tape core, color display for each strand and total strand serial number in a list format A display object for identifying an element of an optical cable.

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