JPH0251881A - Dte/dce switching connecting structure - Google Patents

Abstract

PURPOSE:To make operation and control easy and improve reliability by installing the first and the second connectors at the body side of a unit which respectively connect as prescribed with an internal circuit on a wiring board at the side of the unit and providing a switching connector which fits and connects to a cable connector which connects to a data terminal equipment(DTE) and a data circuit terminating equipment(DCE). CONSTITUTION:The first and the second connectors 21 and 22 at the body side of a unit which respectively connect as prescribed with an internal circuit are adjacently installed on a printed wiring board 2 at the body side of the unit, and when a table connector 3 is connected to DTC, a switching connector 1 is set in a prescribed direction to fit and connect a connector 13 for connecting the body to the first connector 21, and when the cable connector 3 is connected to DCE, the switching connector 1 is rotated in a 180-degree arc to the fitting- and-connecting direction with the first connector 21 to fit and connect to the second connector 22. Thereby, it is possible to simplify switching operation and decrease the number of parts and the number of contacts to improve the reliability and make the cable control easy.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a DTE/DCE switching connection structure.

[Conventional technology]

The conventional DTE/DCE switching connection structure is DTE (d
ata terminal equipment+ent, data terminal equipment)/D CE (date circuit
it terminating equipment.

The mainstream structure is to switch the connection of each interface signal with the data line termination device (data line termination equipment) using various mechanical switches and relays, and this was also achieved by switching the cable connections from the DTE/DCE itself.

[Problem to be solved by the invention]

The above-mentioned bending TE/DCE switching connection structure uses switches and relays to switch each interface signal and replaces the cable connections, so using a switch requires time and effort to operate the switch, and the number of parts increases. There is a disadvantage that the number of contacts increases, and in the case of relays, the number of parts and contacts increases, reducing reliability.

In addition, when changing the cable connections, the cables themselves have to be special and management becomes complicated, which is a drawback.

It is an object of the present invention to provide a DTE/DCE switching connection structure that is easy to operate and manage and has improved reliability.

[Means to solve the problem]

The DTE/DCE switching connection structure of the present invention includes a printed circuit board, a cable mating connector provided on the front side of the printed circuit board and matingly connected to a cable connector connected to the DTE or DCE, and a cable mating connector provided on the back side of the printed circuit board. a switching connector provided with a main unit connecting connector having a plurality of pins connected to each pin of the cable mating connector in correspondence with each other; a first main body side connector that is matingly connected to the cable mating connector when the cable connector is connected to the DTE, and a first main body side connector of the device main body side wiring board adjacent to the first main body side connector. is provided and makes a predetermined connection with the internal circuit, and when the cable connector is connected to the DCE, the cable mating connector is rotated by 180 degrees with respect to the mating connection direction with the first main body side connector. and a second main body side connector which is connected by hand.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIGS. 1(a) to 1(c) are a plan view and a partially exploded side view showing an embodiment of the present invention, respectively.

The switching connector 1 includes a printed circuit board 11, a cable mating connector 12 provided on the front side of the printed circuit board 11 and matingly connected to a cable connector 3 connected to the DTE or DCE, and a cable mating connector 12 provided on the back side of the printed circuit board 11. provided, each pin 12 of the cable mating connector 12
A plurality of pins 1 corresponding to P and connected by wiring 14
It is equipped with a main body connection connector 13 having 3P.

On the other hand, first and second main body side connectors 21 and 22 are provided adjacent to each other on the printed wiring board 2 on the device main body side to make a predetermined connection with the internal circuit, and the cable connector 3 is connected to the DTE. When the cable connector 3 is connected to the DCE, connect the switching connector 1 in a predetermined direction and connect the main body connecting connector 13 to the first main body side connector 21, and when the cable connector 3 is connected to the DCE, the switching connector 1 is rotated 180 degrees with respect to the direction of mating connection with the first main body side connector 21 and is mated and connected with the second main body side connector 22.

Therefore, to switch between DTE mode and DCE mode, either connect the switching connector l to the first main body side connector 21, or rotate it 180 degrees and connect it to the second main body side connector 2.
This can be done by a simple operation such as making a tight connection to 2, and it is possible to reduce the number of parts and the number of contacts. Also, there is no need to change the cable connections.

〔Effect of the invention〕

As explained above, the present invention provides first and second main body side connectors that make predetermined connections with the internal circuits on the wiring board of the device main body side, respectively, and provides switching for mating connection with the cable connector connected to the DTE/DCB. Switching operations can be easily performed by rotating the connectors by 180° and connecting them to the first or second main body connector depending on whether the mode is DTE mode or DCE mode. In addition, reliability can be improved by reducing the number of parts and contacts, and cable management is also facilitated.

[Brief explanation of the drawing]

FIGS. 1(a) to 1(C) are a plan view and a partially exploded side view showing the actual layer side of the present invention, respectively. DESCRIPTION OF SYMBOLS 1...Switching connector, 2...Device main body side printed wiring board, 3...Cable connector, 11...Printed circuit board, 12...Cable mating connector, 12P
...Pin, 13...Connector for connecting the main body, 13P.
...Pin, 14... Wiring, 21.22... Main unit side connector.

Claims (1)

[Claims] a printed circuit board, a cable mating connector provided on the front side of the printed circuit board to be mated and connected to a cable connector connected to DTE or DCE, and each pin of the cable mating connector provided on the back side of the printed circuit board, respectively. A switching connector including a main unit connecting connector having a plurality of correspondingly connected pins, and a switching connector provided on the wiring board on the device main body side to make a predetermined connection with the internal circuit,
a first mating connection with the cable mating connector when the cable connector is connected to the DTE;
and the first connector of the device main body side wiring board.
The cable connector is provided adjacent to the main body side connector and makes a predetermined connection with the internal circuit, and the cable connector is provided adjacent to the main body side connector of the DCE.
When the cable mating connector is connected to the first body side connector, the cable mating connector is
A DTE/DCE switching connection structure characterized by having a second main body side connector which is rotated by 80 degrees for mating connection.