JPH0624349U - Track termination protector - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to directly terminate the outer communication cable to the protector, and connect the input and output terminals with a connector to improve workability and replace the cable housing. In this case, a line termination protector that can be switched without disturbing the working line is provided. [Structure] Soldered by soldering a semiconductor element as an overvoltage / overcurrent protection element and a test ammunition spring with an occasional disconnection prevention function to two printed wiring boards provided with the required number of printed conductor wiring paths. The external line input side terminal should be attached by a bundle of leads arranged between the cable side connector and the two printed wiring boards, which have the function of switching work without disturbing the high-speed digital communication line. The internal output terminal connector for internal communication equipment has a structure in which it is attached to two printed wirings by soldering.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a termination that prevents overvoltage / overcurrent from intruding into a communication line due to induction or mixture, etc. from flowing into a communication device, separates the communication line, and directly connects the input line of the communication line. The present invention relates to a line termination protector that efficiently performs processing and output terminal connection processing.

[0002]

[Prior art]

 FIG. 4 is an assembly plan view of a conventional communication device protector and sub-module. In the figure, 21 is a printed wiring board, and 22 is a U-slit type terminal used as an external line input terminal, which is soldered to the printed wiring board 21 and connected through a jumper line unit 25 to the external line side by a jumper wire. It is something. 23 and 28 are frames, 24 is a connector connected to the communication device side, 26 is a semiconductor element used as a security element, and 27 is a test bullet unit. Such conventional protectors for communication devices have been used and accommodated only for the communication lines used.

[0003]

[Problems to be solved by the device]

 However, when it becomes necessary to accommodate all communication lines including unused lines in a protector, for example, when introducing automatic MDF, etc., it is necessary to pass a protector on the input side of all communication lines. There is a problem in that it is not possible because the protector for communication equipment cannot directly perform line termination processing.

The object of the present invention is to enable the termination processing of the outer communication cable directly to the protector, and to connect the input and output terminals with a connector to improve workability and improve the cable accommodation. It is to provide a line termination protector that can be switched over without disturbing the working line during construction.

[0005]

[Means for Solving the Problems]

 In order to achieve this purpose, the line termination protector of the present invention comprises two printed wiring boards provided with a required number of printed conductor wiring paths, a semiconductor element as an overvoltage / overcurrent protection element, and sometimes A test ammunition spring with a disconnection prevention function is attached by soldering, and the external line input side terminal and the cable side connector that has the function of switching work without disturbing the high-speed digital communication line It has a structure that allows it to be stored and removed freely by mounting it with a bundle of wires that is placed between the printed wiring board and the output terminal connector on the communication device side in the station. It has a special configuration.

[0006]

【Example】

 An embodiment of the present invention will be described below. 1 to 3 are views showing an embodiment of the present invention, FIG. 1 is a perspective view of a line termination protector according to the present invention, and FIG. 2 (a) is a plan view of a line termination protector according to the present invention. 2 (b) is a front view, FIG. 2 (c) is a rear view, FIG. 2 (d) is a left side view, FIG. 2 (e) is a right side view, and FIG. 3 is a plurality of line terminations according to the present invention. It is a module assembly perspective view using a protector.

This protector uses two printed wiring boards, and is used as an output terminal and 10 pairs of termination connectors used as input terminals when accommodating N lines (10 lines in the embodiment). 10 pairs of connectors, 10 × 2 overvoltage / overcurrent protection elements, 10-line test ammunition unit, earth terminal, frame, and connector for termination. A sub-module containing 10 lines is formed using parts of the case. ing. This is installed in a mountain frame by stacking 10 pieces, and a wire arranging plate, a name strip, and an earth plate are attached and assembled to form a termination protector module accommodating 100 circuit wires.

In FIGS. 1 and 2 showing an embodiment, 1 is two printed wiring boards. Reference numeral 2 is a line termination connector used as a termination terminal having a function of preventing instantaneous interruption, and the connection with the printed wiring board 1 is used as an input terminal portion and is connected to the adjacent terminal 10 of the semiconductor element 6 by the lead bundle wire 14 It is mounted as shown in Fig. 3 and normally stored in the connector case 3. To connect to the communication cable on the outside line side, the termination connector 2 is taken out to the front and connected by connecting with a connector (not shown) on the cable side. The adjacent terminals 10 are arranged between the two printed wiring boards 1 and only the output terminal on one printed wiring board side is shown in the plan view of FIG. 2 (a). Reference numeral 3 denotes a termination connector accommodating case, which is fitted and mounted between the printed wiring boards 1. Reference numeral 5 is an earth terminal. Reference numeral 6 denotes a semiconductor element used as an overvoltage / overcurrent protection element, which is, for example, a PNPN device, and an adjacent terminal 10 soldered to the printed wiring board 1 from the termination connector 2 to the printed wiring board 1 by a lead bundle wire 14 and a printing not shown. Soldered to the ground conductor. As a result, it is possible to prevent the conductor pattern (not shown) of the printed wiring board 1 from being dielectrically broken down due to a surge voltage or the like, and to make the circuit pattern thin to increase the density. A connector 4 is an automatic MDF, and is an output terminal to the exchange side. Reference numeral 7 is a test bullet unit that sometimes has a disconnection prevention function and is soldered to the printed wiring board 1. A frame 9 serves as a window of the test ammunition unit 7. Frame 9 and connector for termination The housing case 3 is a resin molded product and the connector 4 is assembled to surround the two printed wiring boards 1 to form a line termination protector sub-module in units of 10 lines. .

FIG. 3 shows an example of a protector module in which a plurality of such protector sub-modules are stacked. Here, 11 is a mountain, and 10 protector sub-modules are stacked and assembled in this frame to form a 100-circuit-accommodating-line termination protector module. Reference numeral 12 is a ground terminal mounting screw. By mounting this, 10 protector sub-modules are housed and fixed in the mountain and at the same time grounded. Reference numeral 13 is a communication cable core wire arranging plate, and 14 is a lead bundle wire for interconnecting the adjacent terminal 10 of the semiconductor element 6 and the line terminating connector 2.

[0010]

[Effect of device]

 The line termination protector of the present invention is effective due to a new combination of the printed wiring board 1, the line termination connector 2, the extension side connector 4, the test ammunition unit 7, and the safety semiconductor device 6. . The line termination work can be directly terminated to the protector, and the termination connector 2 is connected to the printed circuit board 1 by non-fixed wiring and normally stored, and connected to the communication cable. Workability is improved because the connectors can be connected to each other by fitting them together, and the terminating connector 2 will have an effect even if it is the current line due to cable accommodation replacement work such as high-speed digital lines. Since it has no functions, switching work can be done smoothly. Also, the semiconductor element 6 for protection against overvoltage and overcurrent is arranged and mounted in the immediate vicinity of the external line side input terminal, and is connected to the ground via the ground terminal mounting screw 12, so the printed wiring board 1 is destroyed. The pattern wiring can be finely and densely mounted without being carried out, and the line accommodation of one sub-module is a 10-line unit according to the accommodation unit of the communication cable, and it is easy to combine 10 sub-modules to configure a 100-line one module. Can be

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration example of a line termination protector according to the present invention.

FIG. 2 is a plan view (a), a front view (b), a rear view (c), a left side view (d) and a right side view (e) showing a configuration example of a line termination protector according to the present invention. ..

FIG. 3 is a perspective view showing an example of a protector module in which a plurality of line termination protectors according to the present invention are stacked.

FIG. 4 is a plain view showing an example of a conventional protector for communication equipment.

[Explanation of symbols] 1 printed wiring board 2 line termination connector 3 termination connector housing case 4 connector 5 ground terminal 6 semiconductor element 7 test bullet unit 9 frame 10 adjacent terminal 11 mounting 12 ground terminal mounting screw 13 communication cable Core wire arranging plate 14 Lead bundle wire 21 Printed wiring board 22 U slit terminal 23 frame 24 Connector 25 Jumper line unit 26 Semiconductor element 27 Test bullet unit 28 frame

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tsukasa Seino 1-6, 1-chome, Saiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation

Claims (1)

[Scope of utility model registration request] 1. A semiconductor element used as an overvoltage / overcurrent protection element and a test bullet spring having an occasional disconnection prevention function are mounted on two printed wiring boards by soldering, and an output line connection terminal is provided. Is attached between the two printed wiring boards and has a bundle of leads between the connector used as a terminal for terminating the line and having a function of preventing instantaneous interruption and the two printed wiring boards. A line termination protector that can be stored and taken out by attaching it.