JPS6090495A - Board for main distributing board - Google Patents

Abstract

PURPOSE:To attain internal wiring and attain decrease in assembling man-hours by making into boards a terminal block group for accommodating an out-station cable and a receptacle group which receives a protector module, and unifying the structure in one body. CONSTITUTION:At the lower part of the first board assembled body 1, a terminal block group 3A for accommodating an out-station cable is arranged, and on a wiring base plate 1a of the upper part, a receptacle group 4 for receiving a protector module 5 which protects in-station equipment is arranged. On the other hand, terminal block groups 3B and 3C which connect randamly between a subscriber and an electronic exchange, and an interface connector group 7 are arranged at the second board assembled body 2, and these are internally wired regularly. These first and second board assembled bodies are installed by a rivet 8 by causing respective rear surfaces to oppose each other on an installing frame, and are formed in one body.

Description

[Detailed description of the invention] <Industrial application field>.

TECHNICAL FIELD The present invention relates to a board for a main distribution panel installed between an external cable and internal equipment of an electronic exchange used for telephone exchange.

<Prior Art> As shown in FIG. 1, the main distribution board 20 of a conventional electronic exchange has external cables 21. Terminal block 23 for accommodating jumper wires 22. and a protector unit 24, which includes a plurality of grotto protector modules 5 and protects in-office equipment from abnormal voltages and currents, are mounted on both sides of the frame (not shown).

That is, these equipment such as the frame, terminal block 23.degree. The protector unit 24 was attached and fixed.

For this reason, we provided guidance on assembly work to the local JLI that was doing the installation work.

This method has the drawbacks of requiring assembly work manuals and increasing the number of on-site assembly man-hours. Furthermore, since the connection between the main distribution board 20 and the electronic exchange 25 is usually made by a connection means such as wire wrapping, there is also a drawback that a considerable number of connection steps are required.

Further, jumper wires 22 for organically connecting subscribers and the electronic exchange 25 are wired between a terminal block 23 placed on one side of the frame and a protector unit 24 placed on the other side. As a result, jumper wiring work has to be done in two directions, which has the drawback of making jumper wiring work sometimes difficult.

<Object of the Invention> The object of the present invention is to provide a terminal block group equipped with clip terminals for accommodating external cables, a protector who protects in-office equipment from abnormal voltage/current, and an electronic exchange for free connection. A group of interface connectors for connection between the two terminal block groups, the electronic exchange, and the main distribution board are each made into a board so that each can be internally wired,
The object is to eliminate the above-mentioned conventional drawbacks.

<Structure of the Invention> The present board for a distribution frame according to the present invention has a plurality of terminal block groups provided in horizontal rows each having a clip terminal for accommodating an external cable, and a receptacle for receiving a protector module for protecting internal equipment. a first board assembly including an insulating wiring board having a plurality of groups in both vertical and horizontal rows;
An insulating wiring board that has a plurality of two terminal block groups arranged in horizontal rows to connect between subscribers and an electronic exchange, and a plurality of interface connector groups arranged in a column to connect between the electronic exchange and the main distribution board. A second board assembly having a second board assembly is installed on both sides of the mounting frame.

<Examples> Examples of the present invention will be described below with reference to the drawings. FIG. 2 is an explanatory diagram showing a wiring system using the board for the distribution board according to the present invention, and FIG. 3(a).

(b) and (C) are a front view, left side view, and right side view of the board for the distribution board according to the present invention, FIG. 4 is a partial perspective view of a terminal block group, and FIG. 5 is a receptacle. It is a partial perspective view of a group. In the following, parts that are the same as or similar to the conventional ones are given the same reference numerals and redundant explanations will be omitted.

In the figure, 1 is a first board assembly, and in the lower part of the first board assembly 1, a clip terminal 3a having a U-groove structure for accommodating an external cable 21 is formed by embedding an insulator 3blC. A plurality of block groups 3A are arranged in horizontal rows on an insulating wiring board la. Further, a group of receptacles 4 for receiving protector modules 5 for protecting the equipment in the office are also arranged in columns and rows, ie, in a so-called matrix shape, on the plurality of wiring boards la. The terminal block group 3A and the receptacle group 4 arranged on the wiring board la are regularly wired internally by the wiring board la, as shown in the wiring system diagram of FIG.

2 in the figure is the second board assembly, which connects the subscriber and the electronic exchange 25.
One terminal block group 3B and the other terminal block group 3C, which are randomly connected to each other, are grouped in horizontal rows from the bottom to the insulating wiring board 2a.
It is placed on top.

Further, a plurality of interface connector groups 7 for connecting the electronic exchange 25 and the main wiring board 20 are also arranged in tandem on the wiring board 2a. One terminal block group 3C and the interface connector group 7 disposed on the wiring board 2a are regularly internally wired as shown in the wiring system diagram of FIG.

As shown in FIG. 4, the Butakuru nY4 has a structure in which a fork-shaped terminal 4b is inserted into an insulating case 4a.

And these first. The H2 double board assembly 1.degree. 2 is attached by nylon rivets 8 to a mounting frame 6 having a U-shaped cross section, with the back surfaces of the two facing each other. Also number 1. As shown in FIG. 2, internal wiring is regularly arranged between the second and second board assemblies 1.2. Outside office cable 21
and a straightening wheel (not shown) for accommodating and straightening the jumper wires 22. It may be provided at any location on the second board assembly 1.2.

In addition, as shown in FIG.
, , Z2 and resistance network R1゜R2, R, ,
This is a general type consisting of R4.

<Effects of the Invention> As explained above, the present board for a wiring board according to the present invention has the following features: A terminal block group for accommodating external cables, a receptacle group for receiving a protector module, a terminal block group for jumper wires, and an interface connector group are mounted on the second two board assemblies, respectively, and the two board assemblies are assembled. Since it is installed on both sides of the mounting frame, the structure of the terminal block group and receptacle group can be integrated, and internal wiring can be done using a wiring board, which reduces the on-site assembly man-hours and connection man-hours compared to the conventional method. The width can be reduced, and since there is no need to work in two directions as in the past when wiring jumper wires, the work space in the depth direction can be reduced, and one jumper work can be done on one side. Therefore, many effects such as improved workability can be obtained.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a wiring system of a conventional main distribution board, FIG. 2 is an explanatory diagram showing a wiring system using a board for the main distribution board according to the present invention, and FIG. , (C1i, J:, respectively, the front view, left side view, and right side view of the present wiring board according to the present invention, FIG. 4 is a perspective view of the terminal block group, and FIG. 5 is the receptacle group It is a perspective view of a partial cross-section of. First board assembly 1a... Wiring board 2...
・Second board assembly 2a...wiring board 3A, 3B
, 3C...Terminal block group 3a...Clip terminal 4...Receptacle group 5...Protique module 6...Mounting frame 7...Interface connector group 20...Main distribution board 21. ...External cable 22...Jumper wire 25...Electronic exchange Applicant NEC Corporation Figure 3 (b) (0) (cl Figure 4 Figure 5)

Claims (1)

[Claims] In this distribution frame installed between the external cable and the internal equipment of an electronic exchange, a plurality of terminal block groups equipped with clip terminals for accommodating the external cable are installed in horizontal rows, and the grotector module for protecting the internal equipment is received. A first board assembly having an insulating wiring board in which a plurality of receptacles i are provided in both vertical and horizontal rows, and two terminal block groups each having a plurality of horizontal rows for connecting subscribers and an electronic exchange. and a second board assembly having an insulating wiring board having a plurality of vertically arranged interface connector groups for connecting between the main wiring board and the main wiring board, are installed on both sides of the mounting frame. Board for wiring board.