JPH0697856A - Line switching system - Google Patents

Abstract

PURPOSE:To shorten the time required for switching of all lines by providing a collective switching control part and switching lines of all line switching parts by a collective control signal. CONSTITUTION:A collective switching control part 3 which collectively controls line switching parts 4-1 to 4-n is provided. That is, a switching control part 2-n controls the line switching part 4-n by the instruction signal from a central processing part 1 to switch a line 1n-1 to a line 1n-2 in the case of line switching from the line 1n-1 to the line 1n-2. In the case of collective line switching, the collective switching control part 3 generates the collective control signal by the collective line switching instruction from the central processing part 1, and all line switching parts 4-1 to 4-n collectively switch, for example, lines 10-1 to 1n-1 to lines 10-2 to 1n-2 by the collective control signal. That is, lines are simultaneously switched at a time to shorten the line switching time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line switching system for switching a plurality of lines.

[0002]

2. Description of the Related Art Conventionally, this kind of line switching system has a central processing unit, a plurality of line switching units each switching two circuits, and a plurality of switching units having a one-to-one correspondence with the line switching units. When switching all lines, the line switching unit switches the lines under the control of the switching control unit by issuing commands from the central processing unit in order for switching all lines. Was becoming.

[0003]

In this conventional line switching system, since one switching control unit controls one line switching unit, line switching is performed by all the line switching units. On the other hand, when they are collectively performed, since the central processing unit controls each switching control unit one by one, there is a time lag in switching the lines, and it takes a long time to switch.
In addition, this causes a problem that the central processing unit spends a long time.

[0004]

According to the line switching system of the present invention, a plurality of line switching units each switching a plurality of lines, and a line switching control signal in one-to-one correspondence with each of the plurality of line switching units. A plurality of switching control units for sending a batch line switching control signal for causing the plurality of line switching units to switch the plurality of lines at a time, and the switching control unit and the It has a batch switching control unit and a central processing unit that manages it.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

In FIG. 1, this embodiment uses lines 10-1,
10-2, lines 11-1, 11-2 to lines 1n-1, 1
Line switching unit 4-1 for switching n-2, line switching unit 4-2
~ Line switching unit 4n and line switching units 4-1, 4-2 to 4-
Switching control units 2-1 and 2-2 that control n in a one-to-one correspondence
To 2-n, a collective switching control unit 3 for collectively controlling the line switching units 4-1, 4-2 to 4-n, and switching control units 2-1 and 2-
2 to 2-n and the central processing unit 1 that manages the collective switching control unit 3 are configured.

Next, the operation of this embodiment will be described.

For example, when the line is switched from the line 10-1 to the line 10-2, the switching control unit 2-1 generates a single control signal according to a command signal output from the central processing unit 1, and the single control signal is used. The line switching unit 4-1 changes from the line 10-1 to the line 1
Switch to 0-2.

Similarly, when the line is switched from the line 1n-1 to the line 1n-2, the switching control unit 2-n controls the line switching unit 4-n by the command signal from the central processing unit 1 and the line 1n.
Switching from -1 to line 1n-2 is performed.

Next, especially when the lines are collectively switched,
The collective line switching command signal output from the central processing unit 1 causes the collective switching control unit 3 to generate a collective control signal, and all the line switching units 4-1 and 4-2 to 4-n collectively generate a collective control signal. For example, the line is switched from the line 10-1, 11-1 to 1n-1 to the line 10-2, 11-2 to 1n-2.

[0012]

As described above, according to the present invention, a plurality of line switching units each switching a plurality of lines, and a line switching control signal are sent in a one-to-one correspondence with each of the plurality of line switching units. Manages a plurality of switching control units, a collective switching control unit that simultaneously transmits a collective line switching control signal that causes the plurality of line switching units to perform a collective line switching of a plurality of lines, and a switching control unit and a collective switching control unit By having a central processing unit, line switching can be performed all at once, so there is no time difference in the operation of each line switching unit from the conventional one, and
This has the effect of shortening the line switching time.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Central Processing Unit 2-1, 2-2 to 2-n Switching Control Unit 3 Collective Switching Control Unit 4-1, 4-2 to 4-n Line Switching Unit 10-1, 10-2 to 1n-1, 1n -2 line

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhisa Igarashi 1-1, Shinurashima-cho, Kanagawa-ku, Yokohama, Kanagawa Prefecture NEC Robot Engineering Co., Ltd.

Claims (1)

[Claims] 1. A plurality of line switching units, each of which switches a plurality of lines, and a plurality of switching control units each of which outputs a line switching control signal in a one-to-one correspondence with each of the plurality of line switching units; And a central processing unit that manages the switching control unit and the collective switching control unit, which collectively sends a collective line switching control signal that causes the circuit switching unit to collectively switch the plurality of lines. A line switching system characterized by having.