JPH05313214A - Optical matrix switch unit - Google Patents

Abstract

PURPOSE:To enable the execution of the control of an optical matrix switch with a logic interface. CONSTITUTION:Pads 14 to 21 of a control interface board 30 are connected by bumps to electrodes 6 to 13 of the optical matrix switch 1 and a control circuit 40 of the optical matrix switch 1 is packaged to the control interface board 30, by which the optical matrix switch 1 and the control circuit 40 are integrated and the optical matrix switch 1 is controlled by the interface of the control circuit 40 having the logic input interface. As a result, the adverse influence on other circuits is eliminated and the control is facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical matrix switch unit, and more particularly to an optical matrix switch unit having a logic interface in a control system.

[0002]

2. Description of the Related Art Conventionally, this type of optical matrix switch unit requires a control voltage of several tens of volts, and the optical matrix switch and the control circuit are separately mounted on a substrate.

[0003]

In this conventional optical matrix switch unit, since the crosspoint control circuit is mounted on the substrate separately from the optical matrix switch, a large voltage pattern is mounted on the substrate on which the optical matrix switch is mounted. However, there is a problem in that when a circuit runs as many as the number of cross points and an attempt is made to form a mixed circuit with another logic circuit or the like, a leak voltage may be generated and the other circuit may malfunction or be destroyed.

[0004]

An optical matrix switch unit according to the present invention comprises an optical matrix switch having n cross points and a control for applying a voltage capable of individually controlling each cross point for switching an optical path. A circuit, and the optical matrix switch and the control circuit have an integrated structure.

Each of the cross points has an electrode to which the voltage is applied from the control circuit, and bumps can be connected to each of the electrodes on one side thereof and a pad aligned with each of the electrodes on the optical matrix switch. A control interface board having a pattern capable of mounting the control circuit by pulling out a signal line through a through hole on the surface opposite to the pad, and mounting the control interface board on the electrode arrangement surface of the optical matrix switch. The control circuit may be mounted on the control interface board after bump-connecting the electrodes to the pads.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of an embodiment of the optical matrix switch unit of the present invention, and illustrates a case where the number of cross points is n = 4. The optical matrix switch unit of the present embodiment includes an optical matrix switch 1 and an interface 30.
And a control circuit 40.

The optical matrix switch 1 controls each cross point 2, 3, 4, 5 by a voltage to switch the optical path. Electrodes 6, 7, 8, 9, 10, 11, 12, 13 are arranged at the cross points 2, 3, 4, 5, respectively, and the electrodes 6, 7, 8, 9, 8 and 10, 10, respectively.
The cross points 2, 3, 4, 5 can be controlled by applying a voltage between the electrodes 11 and between the electrodes 12 and 13.
The control circuit 40 has a logical interface at its input and an output interface for outputting a voltage capable of controlling each cross point 2, 3, 4, 5 separately. The control interface board 30 has the electrodes 6, 7, 8, 9, 10, 11, 12, 1 of the optical matrix switch 1 on one side.
Pads 14, 15, 16, 17, aligned with
18, 19, 20, 21 having pads 14, 15, 1
Through holes 22, 23, 24, 25, 26, 27, 28, 2 on the surface opposite to 6, 17, 18, 19, 20, 21
The signal line is led out via 9. By mounting the control circuit 40, the electrodes 6, 7, 8, 9 of the optical matrix switch 1
10, 11, 12, 13 and control interface board 3
0 pads 14, 15, 16, 17, 18, 19, 2
The optical matrix switch 1 and the control circuit 40 can be integrated by bump-connecting 0 and 21, and the optical matrix switch 1 can be controlled by the logic input interface of the control circuit 40.

FIG. 2 is an assembled side view of the optical matrix switch unit shown in FIG. Optical matrix switch 1
Electrodes 8, 9, 1 arranged at each cross point 3, 4 of
2, 13 and each pad 1 of the control interface board 30
6, 17, 28 and 29 are bump-connected. As a result, the control circuit 4 mounted on the control interface board 30
0 is integrated with the optical matrix switch 1 through the through holes 24, 25, 26 and 27.

[0009]

As described above, according to the present invention, by integrating the optical matrix switch with the control circuit, the control interface of the optical matrix switch becomes a logical interface, so that the other circuits are not adversely affected. This has the effect of simplifying control.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of an optical matrix switch unit of the present invention.

2 is an assembled side view of the optical matrix switch unit in FIG.

[Explanation of symbols]

 1 Optical Matrix Switch 2, ~ 5 Cross Point 6, ~ 13 Electrode 14, ~ 21 Pad 22, ~ 29 Through Hole 30 Control Interface Board 40 Control Circuit

Claims (2)

[Claims] 1. An optical matrix switch having n cross points, and a control circuit for applying a voltage capable of individually controlling each cross point for switching an optical path, the optical matrix switch and the control circuit. An optical matrix switch unit characterized by the integrated structure of and. 2. Each of the cross points has an electrode to which the voltage is applied from the control circuit, a pad that can be bump-connected to each of the electrodes on one side and is aligned with each of the electrodes on the optical matrix switch. A control interface board having a pattern capable of mounting the control circuit by pulling out a signal line through a through hole on the surface opposite to the pad, and mounting the control interface board on the electrode arrangement surface of the optical matrix switch. 2. The optical matrix switch unit according to claim 1, wherein the control circuit is mounted on the control interface board after the electrodes and the pads are bump-connected.