JPS6015359Y2 - signal connection device - Google Patents

Description

[Detailed description of the invention] This invention is used, for example, to implement electronic computers, etc.
The present invention relates to a signal connection device that configures signal lines electrically connected in series via all of a large number of printed circuit boards.

In electronic computers, there are various control methods for connecting a central processing unit (hereinafter abbreviated as CPU) and multiple input/output devices (hereinafter abbreviated as I10), but in the case of the LOOK-IN method, the following is shown in Figure 1. Input/output control devices (hereinafter abbreviated as C0NT) 31, 32, 33 .corresponding to each l102.
...... (any C0NT is indicated by 3) is connected in parallel to the data and address lines 41, REQ line, and CMD5 in among the pass lines 4 coming out from the CPU 1, and also to the GND lines 311 and 312. ,313・
.

That is, when any l 102 wants to start communicating with CPU I, the C0NT3 for that I 102 sends a request signal to the REQ line, and the CPU responds by sending an AKIT command to the CMD line for searching,
When T3 responds, the l102 and CP
A combination with U l is made.

Also, at this time, the GND lines 311, 312, 313.
...For example, if C0NT32 is outputting the request signal 42, the GND line 313 is at H.
level and becomes invalid after C0NT33.

When implementing such a device, C0NT31°32.
33. The general structure is that each of these devices has a separate printed circuit board, a plurality of connectors are arranged on the motherboard, and the terminal portions of each printed circuit board are inserted respectively.

Further, as mentioned above, it is necessary to connect these printed circuit boards in series through the GND line, but this is accomplished by drawing out the signal lines to the motherboard and connecting them.

Generally, in electronic computers, a large number of connectors for input/output control device printed circuit boards are provided on the motherboard in advance in anticipation of connecting a large number of input/output devices, but when actually used, all The input/output control device is not connected to the connector.

Therefore, in that case, in order to connect the terminals of the connector in which the printed circuit board of the input/output control device is inserted in series with the GND line, the terminals of the connector in which the printed circuit board is not inserted must be crossed and connected. There must be.

Conventionally, the second method of connecting such a GND line was
There was one shown in Figures 4 to 4.

In Figure 2, there is a lead in advance between the input pin 61 (connected to the GND signal input terminal of the printed circuit board) exposed from the motherboard 5 and the output pin 62 (connected to the GND signal output terminal of the printed circuit board). The lead wires 7 are connected by wires 7, and after the printed circuit board 8 is inserted into a connector (not shown), it is necessary to cut the lead wires 7 at the insertion portion.

3 and 4 show the case where the input pin 31 and the output pin 62 are open, contrary to FIG. 2, and after the printed circuit board 8 is inserted, the uninserted part is As shown in the figure, short-circuit with a short circuit 9 or the like, or as shown in FIG. pin 6
It is necessary to connect the leader lines 10 up to 1.

In this way, with conventional signal connection devices, if you want to use the disconnected part again as uninserted in a method where the wires are already connected, or if the wires are not connected from the beginning, you can use a short bar, etc. It requires a large amount of wiring tools, and when using leader wires, special wiring tools (soldering iron, wire wrapper, etc.) are required, so the wiring work is complicated and the wiring cannot be changed easily. there were.

The purpose of this invention is to eliminate the above-mentioned drawbacks of conventional devices.The first signal line connects in series the input/output pins of each connector corresponding to the serial input/output terminals of each printed circuit board, and A second signal line having a connection pin corresponding to the input/output pin of the motherboard is provided on the motherboard, and a connection plug is provided to connect a specific input/output pin and the connection pin of the second signal line. This allows any connection to be made by simply replacing the plug.

An embodiment of this invention will be described below with reference to the drawings.

Figure 5 is a perspective view of the same, Figure 6 is a diagram showing details of the wiring,
In the figure, the same reference numerals as in FIGS. 2 to 4 indicate the same parts, and as shown in FIG. 12 are arranged so as to protrude to the surface of the motherboard 5, and printed circuit boards 8 are inserted into some of each connector 11.

As shown in FIG. 6, the output pin 62 of the connection pins 12 of each connector 11 and the input pin 61 of the adjacent connector are connected by the first signal line 13, and the input/output pin 61 of each connector 11 is connected to the input pin 61 of the adjacent connector. Connecting pins 151 adjacent to each other by placing one connecting pin 141, 142 laterally from .62.
and 152, and the connecting pins 151, 1 of all connectors 11
52 through the second signal line 16.

FIG. 7 is a diagram showing an example of the printed circuit board 8 of the C0NT3, in which the GND input terminal 81 is connected to the input pin 61 terminal of the connector 11, and the GND output terminal 82 is connected to the output pin 62 terminal of the connector 11. It is inserted like this, c
The GND signal (L level) sent from pu 1 is transmitted to the input A of the gate circuit 85 via the wiring 84 on the board, and if there is no request signal 83 at the input B, the GND signal is transmitted to the wiring 86, the terminal 82, and the output pin 62. , are transmitted to adjacent printed circuit boards 11 sequentially via the first signal line 13, but if there is a part where no printed circuit board is inserted, it is necessary to jump over that part and connect to the next printed circuit board. As explained above.

In addition, pins 141, 142゜151.15 of connector 11
The terminal 87 of the printed circuit board 8 connected to the terminal 2 is not used.

In this invention, a connection plug 17 shown in FIG. 8 is used to make this connection.

The connection plug 17 has socket portions 171 and 172 that are connected by lead wires 174 and a socket portion 173 that is not electrically connected, and as shown in FIG.
1 to 173 are arranged at the same spacing as the pin spacing so as to be connected to the pins 61, 151, 141 or 62, 152, 142, respectively.

FIG. 10 shows an example of wiring using this connection plug.

In this example, the number of board insertion slots is seven (A to G), and the board is inserted only in slots A & G, and the connection plug 17 is inserted between pins 62 and 152 of slot A and the pin of slot G. 61 and 151, respectively, and thereby the GND output terminal of the board in slot A and the GND input terminal of the board in slot G are connected via the second signal line 16.

Note that if the socket spacing of the connection plug 17 is made equal to the spacing of the input/output pins 61 and 62 of the same connector as shown in FIG.
It is also possible to connect the input/output hinges 61 and 62 of -F with the connection plug 17.

Although this method is disadvantageous in that the number of connection plugs 17 is greater than when using the second signal line 16, it is advantageous over the conventional method in that soldering and special tools are not required.

In the above embodiment, a case has been described in which input/output control devices of electronic computers are connected in series, but it goes without saying that this invention can be used in any device that uses printed circuit boards connected in series.

As described above, according to this invention, when connecting a large number of printed circuit boards in series, the connections can be made by simply connecting a small number of connection plugs, making it extremely easy to change the wiring connections without the need for special tools. There is.

[Brief explanation of the drawing]

Figure 1 is a block wiring diagram showing the connection between the central processing unit and input/output control unit of an electronic computer, Figures 2, 3, and 4 are schematic configuration diagrams showing the conventional wiring method. FIG. 6 is a perspective view showing the motherboard portion of an embodiment of the invention; FIG. 6 is a connection diagram showing details of the wiring of the connection pins on the motherboard shown in FIG. 5; FIG. 7 is a partial view of the wiring on the printed circuit board; FIG. 8 is a perspective view showing one embodiment of the connection plug used in the signal connection device of this invention, FIG. 9 is a diagram for explaining the relationship between the dimensions of the connection plug shown in FIG. 8 and the spacing between the connection pins, FIG. 10 is a diagram showing an example of wiring using the signal connection device of this invention. In the figure, 5 is the motherboard, 61 and 62 are input pins and output pins, 8 is a printed circuit board, 11 is a connector, 13 is a first signal line, 151 and 152 are connection pins, 16 is a second signal line, 17 is a connection plug. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a signal connection device that constitutes a signal line electrically connected in series via all of a plurality of printed circuit boards each inserted into a corresponding connector provided on a motherboard, the serial input terminal of each printed circuit board and Input pins and output pins provided on the motherboard are connected to the terminals of the connectors respectively connected to the series output terminals; first signal lines connecting the output pins of each of the connectors to the input pins of the adjacent connectors; A group of connection pins provided on the motherboard corresponding to the input pins and output pins, a second signal line connecting all the connection pins of this connection pin group, and the input pin or the output pin and the corresponding connection pin. A signal connection device characterized by comprising a connection plug for connecting between the input and output pins or between the input and output pins of the same connector.