JPH01106692A - Four-wire system line switching device - Google Patents

Abstract

PURPOSE:To obtain a compact four-wire system line switching device by using the switch module of the two-stage ring constitution of n X n and 1X3 switch matrixes, connecting one line to the incoming line of the same switch and connecting another line to the arbitrary outgoing line of the other switch among the outgoing line 3 lines of the 1X3 switch matrix. CONSTITUTION:Incoming lines #1 and #n in the same switch module are mutually connected by closing the (c) switch of a 1X3 switch matrix 3 corresponding to the 1n switch and an outgoing line #n of an n X n switch matrix 2 and by opening n1...nn switches. The incoming line #1 of a module #1 and the incoming line #1 of a module #n are connected by closing the 11 switch of the matrix 2, the (b) switch of the matrix 3 corresponding to the outgoing line #1, the (b) switch of the matrix 3 of a matrix 1 of the #n to which the outgoing line of the (b) switch crowds, and the 11 switch of the matrix 2. By such a constitution, the compact four-wire system line switching device can be obtained and a line extension can be easily dealt with.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a four-wire line switching device, and particularly to a switch and
The present invention relates to a four-wire line switching device that controls line switching by modularizing a matrix.

[Conventional technology]

Conventionally, this type of 4-wire line switching device has an NXN switch matrix for making a line switching connection between N incoming lines and N outgoing lines, and an N
XM (The number of lines interconnected at the same time is M lines.)
It had a switch matrix configuration.

[Problem that the invention seeks to solve]

The conventional 4-wire line switching device described above has a switch matrix configuration that corresponds to the number of incoming and outgoing lines, so as the number of lines increases, the switch matrix becomes extremely large. Another drawback is that it cannot easily cope with the increase in lines.

[Means for solving problems]

The 4-wire line switching device of the present invention includes an n×n switch matrix that enables line switching connections between n incoming lines and n outgoing lines, and a 1×3 switch matrix connected to each of the n outgoing lines.
m switch modules consisting of a switch matrix of It is connected to the corresponding input line of the matrix, and the remaining one line is connected to an arbitrary output line of the 1×3 switch matrix of another switch module.

〔Example〕

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

FIG. 1 shows an embodiment of the invention. In FIG. 1, one embodiment of the present invention includes a switch module 1, an n×n switch matrix 2 within the switch module 1, and a 1×3 switch matrix 3 connected to the switch module 1. control panel 4. n
The output lines of ×n switch matrix 2 are each 1×
3 is connected to the incoming line of switch matrix 3.

Output line #1 from 1x3 switch matrix 3 C switch is nxn in the same switch module
The S and R lines of the 4-wire line are connected to the input line #1 of the switch matrix 2 by twisting them so that they are connected to each other, and all n lines are connected in the same manner. Also, the output line from the B switch of the 1x3' switch matrix 3 is connected to the output line from the B switch of any 1x3 switch matrix 3 of another switch module by twisting the same way. . Line switching connection between incoming and outgoing lines is n×n
The corresponding switch in switch matrix 2 and 1×
This is done by closing the C switch of the switch matrix 3 of No. 3 in response to a control signal from the control panel 4. For example, when incoming line #1 and outgoing line #1 are connected, the 11 switches of n x n switch matrix 2 and the C switch of the 1 x 3 switch matrix corresponding to outgoing line #1 are closed. Become. Connections between incoming lines can be made within the same switch module or between other switch modules.

For example, the interconnection between incoming line #1 and incoming line #n within the same switch module is the 1n switch of an n x n switch matrix and the C switch of a 1 x 3 switch matrix corresponding to outgoing line #n. close, nl,..., n
This is done by opening all the n switches.

Also, connect the input line #1 of switch module #1 and the switch module #1.
Connections to incoming line #1 of module #n are the 11 switches of the n x n switch matrix of switch module #1, the b switch of the 1 x 3 switch matrix corresponding to outgoing line #1, and the output from the b switch. The line connects the b switch of the 1x3 switch matrix of switch module #n and the 11 of the nxn switch matrix.
This is done by closing the switch.

Therefore, by using m switch modules and making the necessary connections for the outgoing lines from the B and C switches of the 1x3 switch matrix of each switch module, the incoming N lines and the outgoing N lines can be connected. Line switching connection and mutual incoming line connection are possible.

〔Effect of the invention〕

As explained above, the present invention uses a switch module consisting of a two-stage ring of an n×n switch matrix and a 1×3 switch matrix, and
By performing the necessary wiring for the output lines of the B switch and C switch of the switch matrix, it is possible to perform 4-wire line switching, making it possible to configure the device compactly. This can be easily solved by adding additional wiring and wiring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. 1... Switch module, 2... n×n switch matrix, 3... 1×3 switch matrix, 4... control panel.

Claims (1)

[Claims] In a four-wire line switching device that enables line switching connection between incoming N lines and outgoing N lines and mutual connection between incoming lines, n that enables line switching connection between incoming N lines and outgoing N lines.
Using m switch modules (n×m=N) consisting of ×n switch matrices and 1×3 switch matrices each connected to n outgoing lines,・Connect one of the three outgoing lines of the matrix to the corresponding incoming line of the n×n switch matrix of the same switch module, and
Connect the line to another switch module's 1x3 switch
A 4-wire line switching device that enables line switching connections between N incoming lines and N outgoing lines and mutual connection of incoming lines by connecting to any outgoing line of a matrix.