JP2990964B2 - Patch panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an input / output terminal connection switching device, and more particularly to a patch panel for controlling connection of a plurality of input / output terminals.

[0002]

2. Description of the Related Art In a conventional patch panel, an input terminal and an output terminal are connected using a cable, a pin jack, a connector, or the like.

[0003]

In this conventional patch panel, the input terminal and the output terminal are connected by cables, pin jacks, connectors and the like, so that the system is not aesthetically superior. Further, in order to check the connection status between the input terminal and the output terminal, it is necessary to trace the cable, so that there is a problem that it is difficult to check the connection instantaneously. The present invention has been made to solve such a problem, and an object of the present invention is to provide a patch panel that allows the user to easily check the connection status of the patch panel visually.

[0004]

According to a patch panel of the present invention, an input terminal selection switch and an output terminal selection switch for setting connection between an input terminal and an output terminal in a patch panel for controlling connection of a plurality of input / output terminals. And input terminal selection switch and output terminal selection switch
A control unit that receives each output of the input as an input and outputs a control signal for connection of the input / output terminal, a switching unit that outputs an input signal to an arbitrary output terminal according to a control signal output from the control unit, and the input terminal A display unit is provided which receives each output of the selection switch and the output terminal selection switch as an input and digitally displays a connection state.

[0005]

According to the present invention, the connection of the input / output terminals is switched by the operation switch, and the input signal of each output terminal is digitally displayed.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic external view of a front panel according to the present invention in order to facilitate understanding of the present invention.
And will be described. In FIG. 1, 1-1, 1-2.
.. 1-4 indicate input terminal selection switches;
-2 ... 2-4 are output terminal selection switches, 3-1 and 3
-2 ... 3-4 indicates a display unit. The numbers surrounded by double corners indicate the case where there are four input / output terminals. When an arbitrary output terminal selection switch 2 is pressed while pressing the input terminal selection switch 1, the selected input terminal and output terminal are connected, and the input terminal number connected on the display unit 3 is digitally displayed.

[0007] The present invention is implemented as follows. FIG. 2 is a block diagram showing one embodiment of the present invention.
In FIG. 2, reference numerals 1 and 2 denote an input terminal selection switch and an output terminal selection switch for setting connection between an input terminal and an output terminal, and reference numeral 3 designates each output of the input terminal selection switch 1 and the output terminal selection switch 2 as an input. A display unit for displaying a connection state, a control unit for outputting a control signal C for connection of input / output terminals, and a control unit for outputting an input signal to an arbitrary output terminal in accordance with the control signal output from the control unit. It is a switching unit. A indicates a status signal, B indicates a latch signal, D indicates an input signal, and E indicates a display signal.

Next, the operation of the embodiment shown in FIG. 2 will be described. First, when the input terminal selection switch 1 is pressed, a status signal A indicating the corresponding input terminal is output. When the output terminal selection switch 2 is pressed, a latch signal B indicating the corresponding output terminal is output. Next, the display unit 3 inputs and displays the status signal A only for the system to which the latch signal B has been output. The control unit 4 inputs the status signal A only to the system to which the latch signal B has been output, and outputs the control signal C for connection switching. The switching unit 5 switches the connection between the input terminal and the output terminal according to the control signal C output from the control unit 4.

FIG. 3 is a detailed circuit diagram showing a configuration example of the input terminal selection switch 1 in FIG. In FIG. 3, reference numerals 11, 12,... 14 denote input terminal selection switches corresponding to the input terminal selection switch 1 in FIG.
.. 18 are input terminal selection switches 11, 12,.
..Inverter circuits having each output of 14 as an input, 25,
26 and 32 are AND circuits, and 33 is this AND circuit 2
An OR circuit having the outputs of 5, 27, 29 and 31 as inputs,
An OR circuit 34 receives the outputs of the AND circuits 26, 28, 30, and 32 as inputs. A ₁ and A ₂ are OR circuits 3
3 and status signals output from 34. When the input terminal selection switches 11 to 14 are pressed, the status signals A ₁ and A ₂ are output corresponding to the pressed switches. Table 1 shows a truth table of the status signals A ₁ and A _2.
Shown in

[0010]

[Table 1]

FIG. 4 is a detailed circuit diagram showing a configuration example of the output terminal selection switch 2 in FIG. In FIG. 4, 21, 22,... 24 are output terminal selection switches corresponding to the output terminal selection switch 2 in FIG.
.. 38 are output terminal selection switches 21, 22,.
.. Inverter circuit that receives each output of 24 as an input.
B ₁ , B ₂ ... B ₄ are inverter circuits 35 and 36.
., 38 are latch signals respectively output.
Then, when the output terminal selection switches 21 to 24 are pressed, the latch signals B _{1 to} B ₄ are output corresponding to the pressed switches. Table 2 shows a truth table of the latch signals B _{1 to} B ₄ .

[0012]

[Table 2]

FIG. 5 is a layout diagram of the light emitting elements of the display unit 3 in FIG. Light-emitting elements 41 to 47 are arranged as shown in the figure to digitally display the input terminal connected to the output terminal. FIG. 6 is a detailed circuit diagram showing a configuration example of the display unit 3 in FIG. 8, reference numerals 51 and 52 denote inverter circuits for inputting status signals A ₁ and A ₂ , respectively, 53 denotes an AND circuit for inputting the status signal A ₁ and the output of the inverter circuit 52, and 54 denotes a status signal A.
AND circuit which receives the output of the ₂ and the inverter circuit 51, AND circuit 55 which receives the status signals A ₁ and A _2, the AND circuit which receives the output of the status signal A ₂ and the inverter circuit 51 is 56, 57 Is an OR circuit that inputs the status signals A ₁ and A ₂ , 58 is an OR circuit that receives the status signal A ₁ and the output of the inverter circuit 52, and 59 is an OR circuit that receives the outputs of the AND circuits 53 and 54. , 60, 61, 62 and 63 receive the display signals E ₁ , E ₂ , E ₃ , E ₄ , E ₅ , E ₆ and E ₇ respectively, and latch signals B ₁ , B ₂ , B ₃ and B _4. Are supplied, and 64, 65, 66, and 67 are display units that receive the respective outputs of the latch circuits 60, 61, 62, and 63 as inputs.

The status signals A ₁ and A ₂ are output from the input terminal selection switches, and the latch signals B _{1 to} B ₄ are output from the output terminal selection switches. Display signal E ₁
The truth table of ~E ₇ shown in Table 3. Latch circuits 60 to 64
When the latch signals B _{1 to} B ₄ are input, the display signals E _{1 to} E
₇ is output to the displays 64 to 67, respectively. The displays 64 to 67 are connected so that the display signals E _{1 to} E ₇ are supplied to the light emitting elements 41 to 47 shown in FIG. 5, respectively.

[0015]

[Table 3]

FIG. 7 is a detailed circuit diagram showing a configuration example of the control unit 4 in FIG. In FIG. 7, 71 and 7
2 is an inverter circuit which receives the status signals A ₁ and A ₂ as inputs, 73 is an AND circuit which receives each output of the inverter circuits 71 and 72 as inputs, and 74 is a status signal A ₂
AND circuit which receives the output of the inverter circuit 71 as an input,
AND circuit 75 which receives the output of the status signal A ₁ and the inverter circuit 72, AND circuit which receives the status signals A ₁ and A ₂ are 76, 77, 78, 79,
Reference numeral 80 denotes the reference control signals F ₁ , F ₂ , F ₃ , F ₄ and the latch signal B, which are the respective outputs of the AND circuits 73, 74, 75, 76.
₁ , B ₂ , B ₃ , B ₄
This is from the latch circuit 77,78,79,80 control signals _{C 1 ~C 4, C 5 ~C} 8, C 9 ~C 12, C 13 ~C 16 are output. Here, the control signal C ₁ -C ₁₆ Figure 2
Corresponds to the control signal C, which is the output of the control unit 4 in FIG.
The status signals A ₁ and A ₂ are output from the input terminal selection switches, and the latch signals B _{1 to} B ₄ are output from the output terminal selection switches. Table 4 shows a truth table of the reference control signals F _{1 to} F ₄ . Latch circuits 77 to 80 outputs the latch signal B ₁ .about.B ₄ is input a reference control signal F ₁ to F _4, respectively.

[0017]

[Table 4]

FIG. 8 is a detailed circuit diagram showing a configuration example of the switching section 5 in FIG. In FIG. 8, 81, 85,
Reference numerals 89 and 93 designate input signals D ₁ as inputs, and relay switches 82, 86, 90 and 94 controlled by control signals C ₁ , C ₅ , C ₉ and C ₁₃ respectively receive input signals D ₂ and control signals Relay switches 83, 87, 9 respectively controlled by C ₂ , C ₆ , C ₁₀ , C ₁₄
Reference numerals 1 and 95 designate input signals D ₃ as inputs and control signals C
_3, C _7, C _11, relay switches controlled respectively by C _15, 84,88,92,96 each controlled by an input respectively an input signal D ₄ control signals _{C 4, C 8, C 12} , C 16 a relay switch that is, the output terminal 97 each output a display signal E ₁ of the relay switch 81 to 84, the output of the relay switch 85 to 88 to the output terminal 98 as a display signal E _2, relay switch 89-9
Each output of 2 to the output terminal 99 as a display signal E _3, the output of the relay switch 93 to 96 is configured to be supplied to the output terminal 100 as the display signal E _4. Here, the input signals D _{1 to} D ₄ and the display signal E ₁
To E ₄ are corresponding to the input signal D and the display signal E in FIG. Then, the relay switches 81 to 96
The control signal C ₁ If -C ₁₆ is input becomes ON, the input signal D ₁ to D ₄ each display signals E ₁ to E ₄ to the output terminal 97 to 100 by a relay switch which becomes the ON
Is sent as

[0019]

As described above, according to the present invention, the connection of the input / output terminals is switched by the operation switch, and the input signals of the respective output terminals are digitally displayed. Has the effect that it can be easily confirmed.

[Brief description of the drawings]

FIG. 1 is a schematic external view of a front panel of a patch panel according to the present invention.

FIG. 2 is a block diagram showing one embodiment of the present invention.

FIG. 3 is a detailed circuit diagram illustrating a configuration example of an input terminal selection switch in FIG. 2;

FIG. 4 is a detailed circuit diagram showing a configuration example of an output terminal selection switch in FIG. 2;

FIG. 5 is a layout diagram of light emitting elements of a display unit in FIG. 2;

FIG. 6 is a detailed circuit diagram illustrating a configuration example of a display unit in FIG. 2;

FIG. 7 is a detailed circuit diagram illustrating a configuration example of a control unit in FIG. 2;

FIG. 8 is a detailed circuit diagram illustrating a configuration example of a switching unit in FIG. 2;

[Explanation of symbols]

 1 input terminal selection switch 2 output terminal selection switch 3 display section 4 control section 5 switching section

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H04Q 3/52-3/52 101 H03K 17/00-17/70

Claims (1)

(57) [Claims] 1. A patch panel for controlling connection of a plurality of input / output terminals, an input terminal selection switch and an output terminal selection switch for setting connection between an input terminal and an output terminal, and the input terminal selection switch and the output.
A control unit that receives each output of the terminal selection switch as an input and outputs a control signal for connection of the input / output terminal, and a switching unit that outputs an input signal to any output terminal according to a control signal output from the control unit; A patch panel comprising: a display unit that receives each output of the input terminal selection switch and the output terminal selection switch as an input and digitally displays a connection state.