JPH0329281A - Transfer device - Google Patents

Abstract

PURPOSE:To suppress lengthening of a roadway so as to miniaturize the title transfer device by providing two groups of terminals along the roadway direc tion and also providing a terminal in the direction right to the roadway. CONSTITUTION:Two groups of terminals 33, 34 are disposed at an equal interval along a roadway comprising a signal lines 10 to 20 connecting with an internal DTE of a data terminal device and signal lines 21 to 30 connecting with a contact of a connector connected with the data terminal device or a data line end terminal device, and also a terminal 55 is disposed at a predetermined interval in the direction right to the roadway. Such a connection/transfer as connection of the data terminal device with the data line end terminal device or the other terminal device, or connection between the data terminal devices is performed depending on the connection between terminals 33, 34 or terminals 33, 35 with use of a transfer strap 36. Of the three groups of terminals, two groups are disposed along the roadway, so that it is possible to suppress lengthening of the roadway along the roadway direction so as to miniaturize the size of the device.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a switching device for connecting data terminal devices to each other or to a data line termination device.

(Prior art) Data terminal equipment (DTE) and data line termination equipment (DC)
E) Connection conditions between each signal line may differ depending on whether data terminal devices are connected to each other or data terminal devices are connected to each other. In this case, any connection can be handled by using cables with different connection relationships, for example.

FIG. 3 is a diagram showing an example of such a case.

In the figure, 1 indicates a data terminal device, and 2 indicates a data line terminal device.

When connecting the data terminal equipment M1 and the data line termination device 2, they are connected to each other by a cable 3 called a straight cable having the connection relationship shown in FIG.

On the other hand, when connecting data terminal devices 1 to each other,
They are interconnected by a cable 4 called a cross cable having the connection relationship shown in FIG.

This makes it possible to deal with any type of connection.

However, in this case, since two types of cables are required, there are problems in terms of cost and the like.

Therefore, it has been conventional practice to use a switching device as shown in FIG.

In the same figure, there are two cases in which a data terminal device 1 and a data line termination device 2 are connected, and a case in which a data terminal device ii! In either case, the straight cable 3 is used to connect the data terminal equipment 1 with the same function as the straight cable 3 (referred to as DCE mode) and the cross cable 4.
The switching device 5 is equipped with a switching device 5 that can realize a function equivalent to (referred to as DTE mode).

FIG. 7 and FIG. 8 are diagrams showing the structure of such a switching device 5.

As shown in these figures, in this switching device 5, a terminal 6 connected to the inside of the data terminal device, a terminal 7 corresponding to the DCE mode, and a terminal 8 corresponding to the DTE mode are arranged at a predetermined interval along the line direction. It is located in

Then, this data terminal device 1 is connected to a data line terminal device 2.
7, the terminals 6 and 7 are connected by a switching strap 9, as shown in FIG.

On the other hand, when connecting the data terminal device 1 to another data terminal device 1, the terminals 7 and 8 are connected by a switching strap 9, as shown in FIG.

This makes it possible to handle any type of connection using a Class 18 cable.

However, in this case, since the terminals 6, 7, and 8 are arranged along the line direction, the switching device 5 becomes longer in the line direction, resulting in an increase in the size of the entire device.

(Problems to be Solved by the Invention) In this way, in the conventional switching device, since the three terminals are arranged along the line direction, the device becomes longer in the line direction, making the entire device larger. there were.

The present invention has been made based on the above circumstances, and an object of the present invention is to provide a switching device that can suppress elongation in the line direction and downsize the entire device.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a first
a second terminal connected to each signal line corresponding to the connection condition of the data line terminating device, and each signal corresponding to the connection condition of another data terminal device having different connection conditions from the data line terminating device. a third terminal connected to the line;
By connecting the first terminal and the second terminal or the first terminal and the third terminal with a switching strap, the data terminal device can be connected to the data line terminating device and the other data terminal. In a switching device for switching and connecting to a terminal device, the first terminal and either the second or third terminal are arranged at a predetermined interval along the line direction, and the remaining terminals are The terminals are arranged at predetermined intervals in a direction intersecting the line direction from the terminals arranged along the line direction.

(Function) In the present invention, the first terminal and either the second or third terminal are arranged at a predetermined interval along the line direction, and the remaining terminals are arranged at a predetermined interval along the line direction. Since the terminals are arranged at predetermined intervals in a direction intersecting the line direction, it is possible to suppress elongation in the line direction and downsize the entire device.

(Example> Hereinafter, details of embodiments of the present invention will be explained based on the drawings.

1 and 2 are diagrams showing the configuration of a switching device according to an embodiment of the present invention, and are based on the CGI TT (International Telegraph and Telephone Consultative Committee) V series recommendations V. 24/V. This was applied to 28.

In the figure, 10 to 20 indicate signal lines connected to the inside of the data terminal device, and 21 to 3o indicate signal lines connected to each contact of a connector connected to the data terminal device or data line termination device. .

The signal line 10 provides a timing signal for providing transmit signal element timing to a data terminal device, the signal line 11 provides a timing signal to provide a receive signal element timing to a data terminal device, and the signal line 12 provides a receive signal element timing to a data line termination device. give a timing signal,
Timing signal lines for providing transmission signal element timing to the data line termination device flow through the signal lines 13, respectively.

Further, the signal line 14 has a signal indicating whether or not the data line termination device is in a state where it can transmit data, the signal line 15 has a signal that controls the transmission function of the data line termination device, and the signal line 16 has a signal from the line. A signal indicating whether the received signal is within a predetermined range, and a transmission data signal from the data terminal device flow through the signal line 17, respectively.

The signal line 18 is a data signal sent from the other party, the signal line 19 is a signal that controls switching to or from the line of the data line terminating device, and the signal line 20 is the data line terminating device operating. A signal is sent to indicate whether or not it is possible.

Note that 31 is a ground with a reference potential of ±0■, and 32 is a resistor for terminating the signal line.

Here, each terminal 33 connected to each signal line 10 to 20 and each terminal 34 connected to each signal line 21 to 30 and corresponding to DCE mode are arranged at a predetermined interval along the track direction. . Furthermore, terminals 35 connected to each of the signal lines 21 to 30 and corresponding to the DTE mode are arranged at predetermined intervals from each terminal 33, 34 in a direction intersecting the line direction.

When connecting this data terminal device to a data line termination device, as shown in FIG.
3 and the terminal 34 are connected by a switching strap 36.

In this case, all the switching straps 36 are lined up toward the track direction.

On the other hand, when connecting a data terminal device to another data terminal device, as shown in FIG.
4 and the terminal 35 are connected by a switching strap 36.

In this case, all the switching straps 36 are lined up in a direction intersecting the track direction.

Therefore, in the switching device of this embodiment, it is possible to suppress the increase in length in the line direction and to downsize the entire device.

That is, in conventional switching devices, the terminals connected to the inside of the data terminal device, the terminals corresponding to the DCE mode, and the terminals corresponding to the DTE mode were arranged along the line direction. The disadvantage was that the overall size of the equipment became larger.

Therefore, as in the switching device of this embodiment, the terminals connected to the inside of the data terminal device and the terminals corresponding to the DCE mode are arranged along the line direction, and the terminals corresponding to the DTE mode are arranged in the direction crossing the line direction. If arranged, the distance between the terminal corresponding to the DCE mode and the terminal corresponding to the DTE mode can be reduced in the line direction compared to the conventional case.

[Effects of the Invention] As explained above, according to the present invention, the first terminal and the second terminal
Or one of the third terminals is arranged at a predetermined interval along the line direction, and the remaining terminals are arranged at a predetermined interval from the terminal arranged along the line direction in a direction crossing the line direction. Since the wires are arranged with the same length, it is possible to suppress the lengthening in the direction of the line and downsize the entire device.

[Brief explanation of drawings]

FIGS. 1 and 2 are diagrams showing the configuration of a switching device according to an embodiment of the present invention, FIG. 3 is a diagram showing an example of switching using conventional cables with different connection relationships, and FIGS. Figure 5 is a diagram showing the connection relationship of each cable in that case, Figure 6 is a diagram showing an example using a conventional switching device, and Figures 7 and 8 are diagrams showing the configuration of the switching device in that case. be. 10-30...Signal line, 31...Ground, 32.
...Resistance, 33, 3435...Terminal, 36...Switching strap. Chong Chong ■ Enemy Drive ε C Waterfall's Ilsan Ken DT [Excess Connector DCE Execute J Connector Lid Figure 4 - r4-c > Ditto C&O Snowy Mountain Old Figure 5 Figure 6 -505

Claims (1)

[Claims] a first terminal connected to each signal line of the data terminal device;
A second terminal connected to each signal line corresponding to the connection condition of the data line terminating device, and a second terminal connected to each signal line corresponding to the connection condition of another data terminal device having different connection conditions from the data line terminating device. and a third terminal, and by connecting the first terminal and the second terminal or the first terminal and the third terminal with a switching strap, the data terminal device can be operated. In the switching device that switches and connects the data line terminating device and the other data terminal device, the first terminal and either the second or third terminal are connected at a predetermined position along the line direction. A switching device characterized in that the terminals are arranged at intervals, and the remaining terminals are arranged at predetermined intervals in a direction intersecting the line direction from the terminals arranged along the line direction.