JPH0918173A - Communication cable distribution rack - Google Patents

Abstract

PURPOSE: To obtain a communication cable rack in which connection can be switched among all lines using small number of connector. CONSTITUTION: The communication cable rack comprises a frame 1 secured vertically to a horizontal plane with a coaxial cable pull-in port being provided at the upper part, a first frame 1A being secured in the frame 1 by means of a support 8, and a supporting board 4 extending in parallel with the first frame 1A and secured to the bottom part at one half height thereof with a cable duct part 9 being provided between the supporting board 4 and the wall face of frame 1. Incoming coaxial cables 5 have unequal length and provided with coaxial socket connectors 6-1,..., 6-m at the forward end thereof while outgoing coaxial cables 2-1,..., 2-m have equal length and provided with coaxial plug connectors 10-1,..., 10-m at the forward end thereof. The first frame 1A is arranged, at a constant interval P, with socket holders 7-1,..., 7-n for securing the coaxial socket connectors 6-1,..., 6-m while the supporting board 4 is arranged, at one half pitch (p) of P, with cable holders 3-1,..., 3-n for supporting the outgoing coaxial cable 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution rack for communication cables, and more particularly to a structure of a distribution rack for distributing and connecting communication cables for transmission communication lines such as coaxial cables so as to be switchably connectable.

[0002]

2. Description of the Related Art Communication cable distribution racks for transmission communication lines such as coaxial cables are used to distribute and accommodate a plurality of coaxial cables for input and output for switching communication lines and line tests. It changes or disconnects connections between each other.

The structure of a conventional communication cable distribution rack is shown in FIG.
As shown in FIG. 3, the distribution frame 11 is fixed vertically, and the socket holder 16 is fixed to the distribution frame 11. The socket holder 16 includes a plurality of incoming coaxial cables 12 and outgoing coaxial cables. It has a structure in which the socket connectors 13 and 15 attached to the tip of the cable 14 are divided and held for each of the inlet side and the outlet side.

The connection between the corresponding individual coaxial cables 12 and 14 on the input side and the output side is achieved by inserting the plug connectors 17 attached to both ends of the jumper cable 18 into the corresponding socket connectors 13 and 15, respectively. Done. Therefore, even when the connection is changed, the plug connector 17 (either the input side or the output side) of the jumper cable 18 is removed from the socket connector 13 (or 15) of the coaxial cable 12 (or 14) to obtain the desired coaxial cable 12 (Or 14) socket connector 1
By changing the insertion number to 3 (or 15), the connection between the coaxial cables 12 and 14 can be easily changed.

[0005]

In the above-mentioned conventional communication cable distribution rack, in order to switch the communication cables, the plug connector on the inlet side or the outlet side of each jumper cable is pulled out from the socket connector and the other communication cable is disconnected. Must be inserted into a socket connector, therefore 1
It was necessary to have two sets of plug connector and socket connector for each line, one on the input side and one on the output side. Generally, a large number of communication cables are accommodated in a communication cable distribution rack, and particularly when a coaxial cable is used as the communication cable, a large number of expensive coaxial connectors that occupy most of the price of the communication cable distribution rack are required. There was a drawback to

In order to reduce the number of the connectors, the jumper cable 18 is omitted as shown in FIG. 3 (for example, "Printed board unit connection structure" in Japanese Patent Laid-Open No. 60-192396), and the connector shown in FIG. Side socket connector 1
There is also a structure in which 5 is used as the input side connector 19 and is directly connected to the plug connector 20 provided on the output side communication cable.

However, in the case of the second conventional example which does not use a jumper cable, a rack mounted with a communication device such as a connection between a communication cable and a printed board, which has a large number of times of attachment / detachment but a small number of connection switching operations. In the application example in, there is an effect that the number of connectors can be halved, but when it is necessary to enable line switching between all the cables in the distribution rack as in the communication cable distribution rack, An extra length for switching must be left in advance for all cable lengths. However, in reality, it is difficult to secure a sufficient space for a cable that accommodates the extra length of a communication cable with a large outer diameter, such as a coaxial cable, and the range of line switching is limited to that of the line mutual. There is a problem that it is limited in time.

An object of the present invention is to provide a communication cable distribution rack in which the number of coaxial connectors to be mounted is reduced and all lines in the distribution rack can be switched and connected.

[0009]

A communication cable distribution rack according to the present invention has a plurality of inlets and outlets of communication cables at one end in the longitudinal direction and holds a plurality of communication cables. A cable holding frame portion, a plurality of cable connecting means to which the tips of both the input side and the output side communication cables are detachably attached so that they can be connected to each other, and the cable holding frame portion is fixed to the cable holding frame portion. A first fixed rack for fixing and holding a plurality of cable connecting means at substantially equal intervals over substantially the entire length of the holding frame portion in the longitudinal direction, and a first fixed rack at the end of the cable holding frame portion remote from the communication cable lead-in port. And fixed in parallel with each other, and detachably supports a plurality of outgoing communication cables in a section from the end far from the communication cable inlet to half the length of the first fixed rack in the longitudinal direction. Multiple caves And a second fixed rack to which the support portions are arranged at equal intervals.

The plurality of outgoing communication cables held by the second fixed rack have substantially the same length, that is, from the communication cable inlet to the first fixed rack via the cable support portion of the second fixed rack. It is desirable to have a length that allows connection to the farthest cable connection means in the fixed frame.

Further, it is desirable that the plurality of entry side communication cables are distributed to the respective cable connecting means fixing portions of the first fixed rack at the shortest distance.

In addition, the arrangement order of the cable support portions in the second fixed rack supporting the plurality of outgoing communication cables and the corresponding cable connection means in the first fixed rack of the incoming communication cables. It is desirable to distribute the communication cables on each output side so that the arrangement order is the same.

[0013]

[Function] The communication cables on both the input side and the output side are directly connected to each other by the cable connecting means in which the ends of the communication cables on both the input side and the output side are detachable. In addition, the length of the second fixed rack is half the length of the first fixed rack, and a space for accommodating the extra cable length for switching can be obtained.

By making all the plurality of communication cables held on the second fixed rack substantially equal in length, it is possible to switch between all the communication cables on the input side and the output side.

By making the arrangement order of supporting the cable supporting portion in the second fixed rack the same as that of the cable connecting means to be connected in the first fixed rack, the cable supporting portion and the cable connecting means are arranged. A plurality of outgoing communication cables can be distributed among them without crossing.

[0016]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of the structure of the communication cable distributor according to the present invention.

The structure of the communication cable distribution rack of this embodiment is as follows.
It is fixed with its longitudinal direction perpendicular to the horizontal plane, and m coaxial cables 5-1 to 5-m on the incoming side and m coaxial cables 2-1 to 2-m on the outgoing side are pulled in from the upper inlet. The frame frame 1 to be encased and the support 8 are vertically fixed to one wall surface inside the frame frame 1 and fixed, and are attached to the ends of the m coaxial cables 5-1 to 5-m on the entry side. N socket holders 7 (where n is a number of m or more) that can fix the coaxial socket connectors 6-1 to 6-m at desired positions.
-1 to 7-n are arranged at equal intervals over the entire length of the frame 1 and the first fixed frame 1A in the frame 1 in parallel with the first fixed frame 1A near the center of the frame 1. A support plate 4 corresponding to a second fixed rack which is vertically set and fixed to the bottom.
Consists of On the support plate 4, n cable holders 3-1 to 3-n supporting the output side coaxial cable 2 corresponding to the cable support portion are provided between the bottom of the support plate 4 and the half height of the frame 1. The space between the wall surface of the rack frame 1 on the opposite side of the first fixed rack 1A and the support plate 4 constitutes a cable duct portion 9 for accommodating the outgoing coaxial cable 2. To do.

The number of each coaxial cable on the input side and the output side is
Here, the number is the same for each m, but the numbers of the entrance side and the exit side may be different, and either may be the entrance side or the exit side. Entry-side coaxial cables 5-1 to 5
The coaxial socket connectors 6-1 to 6-m are provided at the tip of -m, and the coaxial plug connectors 10-1 to 10-m are provided at the tips of the coaxial cables 2-1 to 2-m on the output side. , The desired coaxial plug connectors 10-1 to 10-m and the coaxial socket connectors 6-1 to 6-m are combined and fitted, and the socket holder 7 on the first fixed rack 1A is attached. -1 to 7-n
Fix with.

The cable holders 3-1 to 3-n and the socket holders 7-1 to 7-n are given the same numbers 1 to n from the bottom to the top of the frame 1. The distance p between the cable holders 3-1 to 3-n on the support plate 4 is 1/2 of the distance P between the socket holders 7-1 to 7-n on the first fixed rack.

Further, although the communication cable distribution rack has been described as being erected vertically here, it may be used horizontally in a trench or the like.

When the coaxial cables are distributed and arranged on this cable distribution rack, m coaxial cables 5-1 on the entry side are arranged.
~ 5-m is wired at the shortest distance to the socket holders 7-1 to 7-n to which the coaxial socket connectors 6-1 to 6-m are fixed, with the minimum required extra length, and the coaxial cable 2 on the output side is used. -1 ~
2-m is the incoming coaxial cable 5 to be connected
-Wiring to reach each socket holder 7-1 to 7-n via the cable holder 3-1 to 3-n with the same number as the socket holder 7-1 to 7-n corresponding to -1 to 5-m To do. That is, the output side coaxial cable 2-1 that reaches the lowest socket holder 7-1 of the first fixed rack is bent at a substantially right angle via the lowest cable holder 3-1 of the support plate 4, First
The coaxial cable 2-m on the outgoing side to the uppermost socket holder 7-n of the fixed rack of is fixed to the uppermost cable holder 3-n of the support plate 4, that is, the central portion of the communication cable distribution rack, and wired. To be done. Therefore, the lengths of the output side coaxial cable 2-1 and the coaxial cable 2-m from the respective inlets are approximately equal to the height of the communication cable distribution rack and the distance between the support plate 4 and the first fixed rack. Equal to the added length. The same applies to the length of the other coaxial cable on the output side.

Switching of coaxial cable connection, for example, the output side coaxial cable 2-4 connected to the input side coaxial cable 3-4 supported by the socket holder 7-4 is supported by the socket holder 7-7. When changing the connection to the incoming coaxial cable 3-7, not only simply change the connection from the socket holder 7-4 to the socket holder 7-7, but also support the cable holder 3-4. The supporting position of the outgoing coaxial cable 2-4 is to be transferred from the cable holder 3-4 to the cable holder 3-7. Therefore, by associating the numbers 1 to n of the socket holder 7 with the numbers 1 to n of the cable holder 3, the crossover wiring of the output side coaxial cable 2 between the socket holder 7 and the cable holder 3 is eliminated, and wiring switching is performed. Work becomes easy.

Wire the plurality of coaxial cables 5-1 to 5-m on the entry side to the socket holders 7-1 to 7-n, to which the socket connectors 6-1 to 6-n are fixed, in the shortest distance. Then, the change range on the entry side is limited, but it can be changed on the exit side, so there is no hindrance to the switching connection with all the exit sides, and there is no extra space to accommodate the extra cable length on the entry side. Spaces can be omitted.

[0025]

As described above, according to the present invention, the second fixed rack for supporting the outgoing communication cable is provided with the detachable cable connecting means at the tips of both the incoming communication cable and the outgoing communication cable. The length of the first fixed rack for supporting the cable connecting means of the communication cable on the inlet side to directly connect the communication cables on both the inlet side and the outlet side to each other, and thus the jumper Omitting the cable connector,
In addition, there is an effect that a space for accommodating the extra cable length for switching the connection between the incoming and outgoing communication cables can be obtained.

Further, by making all the plurality of communication cables held on the second fixed rack substantially equal in length, it is possible to switch between all the communication cables on the input side and on the output side. .

Further, by arranging the arrangement order of supporting the cable support portion in the second fixed rack in the same order as the arrangement order of the cable connecting means to be connected in the first fixed rack, the cable support portion and the cable A plurality of communication cables on the output side can be distributed among the connecting means without crossing, which has the effect of facilitating the switching work.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the structure of a communication cable distribution rack of the present invention.

FIG. 2 is a perspective view of an example of a conventional communication cable distribution rack structure.

FIG. 3 is a perspective view of another embodiment of the conventional communication cable distribution rack structure.

[Explanation of symbols]

1 frame 1A 1st fixed frame 2, 2-1 to 2-m, 14 Output side coaxial cable 3, 3-1 to 3-n Cable holder 4 Support plate 5, 5-1 to 5-m, 12, 19 Input side coaxial cable 6,6-1 to 6-n, 13,15 Coaxial socket connector 7,7-1 to 7-n, 16 Socket holder 8 Support 9 Cable duct part 10,10-1 to 10-m, 17,20 Coaxial plug connector 11 Distribution frame 18 Jumper cable

Claims (4)

[Claims] 1. A communication cable distribution rack in which a plurality of communication cables that are divided into two groups, an input side and an output side, can be distributed and switchably connected to each other, wherein the plurality of communication cables are provided at one end in the longitudinal direction. And a plurality of cables that are attached to the ends of the communication cables on both the inlet side and the outlet side and that can be detachably connected to each other. A connecting means; a first fixing rack fixed to the holding frame portion and fixedly holding the plurality of cable connecting means at equal intervals over substantially the entire length in the longitudinal direction of the holding frame portion; Half of the length of the first fixed rack in the longitudinal direction of the first fixed rack from the end far from the communication cable lead-in port Section up to The communication cable distribution rack, characterized in that it comprises a second fixed rack in which a plurality of cable supporting portion for detachably supporting a plurality of communication cables of the outlet side are arranged at equal intervals. 2. The plurality of communication cables on the output side held by the second fixed rack all have substantially the same length, that is, from the communication cable inlet to the second fixed rack via the cable holding portion of the second fixed rack. 2. A cable connecting means fixed to the farthest end portion of the fixed rack of FIG.
Communication cable distribution rack described in. 3. The communication cable distribution according to claim 2, wherein the plurality of communication cables on the entry side are distributed to the respective cable connecting means fixing portions of the first fixed rack at the shortest distance by the minimum required extra length. Rack. 4. A communication cable distribution method of a communication cable distribution rack, wherein a plurality of communication cables divided into two groups, an input side and an output side, can be distributed and connected so that they can be switched to each other. Holding frames for holding the plurality of communication cables, having a plurality of communication cable inlets, and attached to the tips of both the input side and the output side communication cables so as to be detachably connected to each other. And a plurality of cable connecting means capable of being fixed to the holding frame part, and
A first fixing rack for fixing the plurality of cable connecting means at substantially equal intervals over substantially the entire length in the longitudinal direction of the holding frame section, and the first fixing rack at an end of the holding frame section remote from the communication cable inlet. And a plurality of cable support portions that detachably support the plurality of communication cables on the output side are arranged at equal intervals in a section of half the length of the first fixed rack in the longitudinal direction. A second fixed rack is provided, the lengths of the plurality of communication cables on the output side are all equal, and the plurality of communication cables on the output side are arranged in the order of arranging the cable connecting means of the corresponding communication cables on the input side. A communication cable distribution method of a communication cable distribution rack, which is supported and distributed by a cable support portion in a second fixed rack in the same order as.