JP5823193B2 - Conversion adapter - Google Patents

Description

  The present invention relates to a conversion adapter for connecting connectors together.

  A PC (Personal Computer) and its peripheral devices are connected by interfaces of various standards. For example, RS-232C is known as a serial interface standard. The shape of the connector in RS-232C includes, for example, a D-sub 9 pin and a D-sub 25 pin. Some PC peripheral devices (for example, a modem) have a connector (for example, RJ45) having a different standard from the above connector.

  In order to connect connectors of different standards, it is necessary to use a conversion adapter for absorbing connector shape differences. For example, a conversion adapter is known that has a switch mechanism such as a rotary switch or a dip switch, and can arbitrarily change the connection relationship of wirings that connect connector terminals. The arrangement of terminals (contact pins) in the connector may differ depending on the product or manufacturer. However, according to the above configuration, the terminals can be connected to each other by a single conversion adapter according to the difference between such products and manufacturers. Relationships can be changed flexibly.

JP 2007-115237 A

  Since the above conversion adapter has a switch mechanism such as a rotary switch or a dip switch, it may be difficult to reduce the size. In addition, since it is necessary to individually set switches for a plurality of terminals, the switching operation may be complicated.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a conversion adapter that can be reduced in size and that can easily change wiring.

The present invention includes a first insertion portion in which a plurality of first terminals are arranged and a first connector is inserted, a second insertion portion in which a plurality of second terminals are arranged and a second connector is inserted, and the first A wiring switching part formed between the first insertion part and the second insertion part so as to be detachable, and formed with wirings for connecting the corresponding terminals of the plurality of first terminals and the plurality of second terminals; The wiring switching unit includes two or more wirings that connect the plurality of first terminals and the plurality of second terminals in different correspondence relationships, and the wiring switching unit includes the two or more wirings. The conversion adapter is characterized in that the wiring used can be switched .

  In the above configuration, the wiring switching unit is formed with two or more wirings that connect the plurality of first terminals and the plurality of second terminals in different correspondence relations, and when the wiring switching unit is inserted By changing the direction of the wiring, it is possible to switch the wiring to be used among the two or more wirings.

In the above configuration, the wiring switching portion has a substantially prismatic shape having a plurality of side surfaces and two bottom surfaces, and the terminal portion of the first wiring among the two or more wirings is the plurality of side surfaces. Of the two or more kinds of wirings, the terminal part of the second wiring is formed on each of the two opposing faces, and is different from the face on which the terminal part of the first wiring is formed. It can be set as the structure currently formed.

  In the above configuration, at least one of the two bottom surfaces has a display indicating a correspondence relationship between which of the two or more types of wiring is used with respect to an orientation when the wiring switching unit is inserted. It can be set as the structure provided.

  In the above configuration, a plurality of the wiring switching units having different wiring patterns are provided, and one of the plurality of wiring switching units is selected and inserted between the first insertion unit and the second insertion unit. Thus, the connection relationship between the plurality of first terminals and the plurality of second terminals can be switched.

  The said structure WHEREIN: The said 1st insertion part and the said 2nd insertion part are set as the structure from which the shape of the connector inserted is the same, and the arrangement | positioning of the terminal in the said some 1st terminal and the said some 2nd terminal differs. be able to.

  The said structure WHEREIN: The said 1st insertion part and the said 2nd insertion part can be set as the structure from which the shape of the connector inserted differs.

  In the above configuration, the standard of the first connector may be RS-232, and the standard of the second connector may be RJ45.

  ADVANTAGE OF THE INVENTION According to this invention, the conversion adapter which can be reduced in size and can change wiring easily can be provided.

FIG. 1 is a block diagram showing the configuration of the entire system. FIG. 2 is an external view of the conversion adapter. FIG. 3 is a schematic cross-sectional view showing the shape of the connector portion in the conversion adapter. FIG. 4 is a schematic diagram showing the configuration of the wiring switching rod. FIG. 5 is a schematic diagram showing a connection form of wiring. FIG. 6 is a table showing the connection relationship between the terminals.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram illustrating the configuration of the entire system including the conversion adapter according to the first embodiment. A PC 10 that is an example of an information processing apparatus and a modem 20 that is an example of a peripheral device are connected via a first cable 30 and a second cable 40. One end of the first cable 30 is connected to the PC 10, and one end of the second cable 40 is connected to the modem 20. The interface standard of the first cable 30 is RS-232C, and the interface standard of the second cable 40 is RJ45, both of which have different connector shapes. For this reason, the 1st cable 30 and the 2nd cable 40 are mutually connected by the conversion adapter 50 for absorbing the shape difference of a connector. In the following description, the connector portion of the first cable 30 is referred to as a first connector 32, and the connector portion of the second cable 40 is referred to as a second connector 42.

  2 is an external perspective view of the conversion adapter 50 shown in FIG. 1, and FIG. 3 is a schematic cross-sectional view showing the connector shape of the conversion adapter 50. As shown in FIG. 2, the conversion adapter 50 includes a first insertion part 52 into which the first connector 32 is inserted (connected) and a second insertion part 54 into which the second connector 42 is inserted (connected). The first insertion part 52 and the second insertion part 54 each have a plurality of terminals, and corresponding terminals of the first insertion part 52 and the second insertion part 54 are electrically connected inside the conversion adapter 50. ing.

  As shown in FIG. 3A, the connector shape of the first insertion portion 52 is a D-sub 9-pin female type, and nine signal terminals (hereinafter referred to as first terminals A1 to A9). Have. The connector shape of the first connector 32 is a D-sub 9-pin male type, and contact pins (not shown) provided on the surface are inserted into holes provided with the first terminals A1 to A9. By this, it contacts with 1st terminal A1-A9.

  As shown in FIG. 3B, the connector shape of the second insertion portion 54 is an RJ45 female type, and has eight signal terminals (hereinafter referred to as second terminals B1 to B8). The connector shape of the second connector 42 is an RJ45 male type, and the housing portion of the second connector 42 is inserted into the second insertion portion 54 so that the terminals of the second connector 42 are second. Contact with terminals B1 to B8.

  Returning to FIG. 2 again, an insertion hole 56 for inserting the wiring switching rod 60 is formed on the side surface of the conversion adapter 50 (between the first insertion portion 52 and the second insertion portion 54). The wiring switching rod 60 is an example of a wiring switching unit in which wirings for connecting corresponding terminals of the first terminals A1 to A9 of the first insertion unit 52 and the second terminals B1 to B8 of the second insertion unit 54 are formed. It is. The wiring switching rod 60 is formed to be detachable from the insertion hole 56 of the conversion adapter 50.

  FIG. 4 is a schematic diagram illustrating the configuration of the wiring switching rod 60. FIG. 4A shows straight wiring that connects the same signal names, and is used when connecting a PC and peripheral devices. FIG. 4B shows a cross wiring that is connected by exchanging signal names, and is used when connecting PCs. As shown in FIGS. 4A and 4B, the wiring switching rod 60 has a substantially rectangular parallelepiped (square prism) shape including four side surfaces 61 to 64 and two bottom surfaces 66 and 67.

  In FIG. 4A, on the first side surface 61 of the wiring switching rod 60, there are nine signal lines (hereinafter referred to as “first”) connected to the first terminals A1 to A9 of the first connector 32 of D-sub 9-pin. Signal lines A1 to A9). Eight signal lines (hereinafter referred to as second signal lines B1 to B8) connected to the second terminals B1 to B8 of the second connector 42 of the RJ45 are provided on the second side face 62 opposite to the first side face 61. Is connected. The first signal lines A1 to A9 and the second signal lines B1 to B8 are electrically connected to internal wirings formed on the wiring switching rod 60, respectively. In FIG. 4A, two internal wirings (C1 and C2) through which the transmission signal TxD and the reception signal RxD are transmitted are representatively illustrated among the plurality of internal wirings. The signal line is electrically connected to one of the opposite signal lines via an internal wiring (not shown).

  Here, the arrangement of terminals in the first connector 32 of the D-sub 9-pin and the second connector 42 of the RJ45 may be different for each manufacturer or device specification. Therefore, it is desirable that the correspondence relationship between the first signal lines A1 to A9 and the second signal lines B1 to B8 can be appropriately changed according to the above specifications. The conversion adapter 50 according to the first embodiment may change the connection relationship between the first signal lines A1 to A9 and the second signal lines B1 to B8 depending on the direction when the wiring switching rod 60 is inserted into the insertion hole 56. It can be configured. Hereinafter, this point will be described in detail.

  FIG. 4B shows a state in which the insertion direction of the wiring switching rod 60 in FIG. In FIG. 4B, on the third side surface 63 of the wiring switching rod 60, nine first signal lines A1 to A9 connected to the first terminals A1 to A9 of the first connector 32 of D-sub 9-pin. Is connected. Eight second signal lines B1 to B8 connected to the second terminals B1 to B8 of the second connector 42 of the RJ45 are connected to the fourth side face 64 facing the third side face 63.

  FIG. 5 is a schematic cross-sectional view showing a connection form between the internal wiring and the signal line. The first signal line A extends substantially parallel to the surface of the first side surface 61, and is connected to the terminal portion 70 of the internal wiring C at the end of the first side surface 61. The second signal line B extends substantially in parallel with the surface of the second side surface 62, and is connected to the terminal portion 72 of the internal wiring C at the end of the second side surface 62. The corresponding signal lines of the first signal lines A1 to A9 and the second signal lines B1 to B8 are electrically connected via the internal wiring C of the wiring switching rod 60, respectively. Note that the connection form shown in FIG. 5 is an example, and the contact part between the internal wiring and the signal line can adopt any form as long as it can be electrically connected.

  Although not shown in FIG. 5, the wiring switching rod 60 has an internal wiring C connecting the first side surface 61 and the second side surface 62, as well as a third side surface 63 located between the side surfaces and facing each other. An internal wiring D that connects the first side surface 64 and the fourth side surface 64 is formed. That is, the wiring switching rod 60 has two wiring patterns. Which of the above-mentioned side surfaces (first side surface 61 and second side surface 62 and third side surface 63 and fourth side surface 64) is connected to the signal line depends on the direction of insertion of the wiring switching rod 60 Determined by.

  In FIG. 4A, the first signal lines A1 to A9 and the second signal lines B1 to B8 are connected by an internal wiring C that connects the first side surface 61 and the second side surface 62. In FIG. 4B, the first signal lines A1 to A9 and the second signal lines B1 to B8 are connected by an internal wiring D that connects the third side surface 63 and the fourth side surface 64. The internal wiring C in FIG. 4 (a) is a straight wiring that connects the same signal names, and the internal wiring D in FIG. 4 (b) is a cross wiring that replaces and connects the signal names. The wiring patterns are different from each other.

  An instruction mark 80 corresponding to the two wiring patterns is formed on the bottom surface 66 of the wiring switching rod 60. When inserting the wiring switching rod 60 into the insertion hole 56, the wiring switching rod 60 can be inserted in the correct orientation by checking the direction of the instruction mark 80. 4A and 4B, the direction of the instruction mark 80 is different.

  FIG. 6 is a table showing the correspondence between signal lines in two wiring patterns. FIG. 6A shows a straight wiring, and FIG. 6B shows a cross wiring. 6A and 6B, in the first connector 32 (D-sub 9-pin), the terminal number of the RxD (diagnosis data) signal is A2, and the terminal number of the TxD (transmission data) signal is A3. ing. Similarly, the DTR (data terminal ready) signal is A4, the DSR (data set ready) signal is A6, the RTS (transmission request) signal is A7, the CTS (transmittable) signal is A8, and the GND (ground) is A5. ing. Terminals with terminal numbers A1 and A9 are not used.

  In the straight wiring of FIG. 6A, the RxD terminal (terminal number A2) of the first connector 32 is the terminal number B6 of the second connector 42, and the TxD terminal (terminal number A3) of the first connector 32 is the second connector 42. Terminal number B3. Similarly, the DTR terminal (terminal number A4) on the first side is connected to B2 on the second side, the DSR terminal (terminal number A6) on the first side is connected to B7 on the second side, and the RTS terminal (terminal terminal) is connected to the first side. The number A7) is connected to the second side B1, and the first side CTS terminal (terminal number A8) is connected to the second side B8. Further, the SG (Signal Ground) terminal (terminal numbers B4 and B5) on the second side is commonly connected to the GND (terminal number A5) on the first side.

  6B, the RxD terminal (terminal number A2) of the first connector 32 is the terminal number B3 of the second connector 42, and the TxD terminal (terminal number A3) of the first connector 32 is the second connector 42. Terminal number B6. Similarly, the DTR terminal (terminal number A4) on the first side is connected to B7 on the second side, the DSR terminal (terminal number A6) on the first side is connected to B2 on the second side, and the RTS terminal (terminal terminal) is connected to the first side. The number A7) is connected to the second side B8, and the first side CTS terminal (terminal number A8) is connected to the second side 8. As described above, in the cross wiring of FIG. 6B, the connection relationship between the two signal lines paired other than the ground line is opposite to that of the straight wiring of FIG. 6A. The SG terminal (terminal numbers B4 and B5) on the second side is commonly connected to the GND (terminal number A5) on the first side, as in FIG.

  According to the conversion adapter 50 according to the first embodiment, the two wiring patterns can be easily switched only by changing the direction when the wiring switching rod 60 is inserted. Further, since the wiring switching rod 60 does not have a switch mechanism such as a dip switch or a rotary switch, it can be easily reduced in size. That is, according to the conversion adapter 50 according to the first embodiment, it is possible to realize a conversion adapter that can be reduced in size and that can be easily switched.

  In the first embodiment, the example in which the shape of the wiring switching rod 60 is a substantially rectangular parallelepiped (square prism) has been described. However, the shape of the wiring switching rod 60 is not limited thereto. For example, the shape of the wiring switching rod 60 may be a substantially prismatic shape having three or more side surfaces and two bottom surfaces. At this time, a terminal portion of one of the plurality of wiring patterns is formed on two opposing surfaces of the plurality of side surfaces, and the other internal portion of the plurality of wiring patterns is formed on the other two opposing surfaces. A terminal portion of the wiring may be formed. Further, the terminal portion of the internal wiring may be formed not on the two opposing surfaces but on two surfaces having other relationships (for example, adjacent).

  In the first embodiment, an example in which only one wiring switching rod 60 is used has been described. However, a plurality of wiring switching rods having the same configuration and different wiring patterns are used, and the type of wiring switching rod inserted into the insertion hole 56 is changed. Thus, the wiring pattern may be switched. In this case, the wiring switching rod does not necessarily have a plurality of wiring patterns. However, by using a plurality of wiring switching rods having a plurality of wiring patterns as in the first embodiment, more wiring patterns can be obtained. It becomes possible to respond. On the contrary, when the number of wiring switching rods is one as in the first embodiment, there is an advantage that the number of parts can be reduced.

  In Example 1, although the example in which the connector shape of the 1st connector 32 and the 2nd connector 42 differs was demonstrated, the shape of both connectors may be the same. Even if the shape of the connector is the same, it is meaningful to switch the wiring pattern by the conversion adapter when the arrangement of the signal terminals differs depending on the specifications of the device. In the first embodiment, the standard of the first connector 32 is RS-232C and the standard of the second connector 42 is RJ-45. However, the usable connector standards are not limited to these.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to such specific embodiments, and various modifications and changes can be made within the scope of the gist of the present invention described in the claims. It can be changed.

10 PC
20 modem 30 first cable 32 first connector 40 second cable 42 second connector 50 conversion adapter 52 first insertion portion 54 second insertion portion 56 insertion hole 60 wiring switching rod 61 first side surface 62 second side surface 63 third side surface 64 4th side surface 66, 67 Bottom surface 70, 72 Terminal part 80 Instruction mark A1-A9 1st terminal (1st signal line)
B1 to B8 second terminal (second signal line)
C, D Internal wiring

Claims (8)

A first insertion portion in which a plurality of first terminals are arranged and a first connector is inserted;
A second insertion part in which a plurality of second terminals are arranged and a second connector is inserted;
Wiring switching in which wiring is formed between the first insertion portion and the second insertion portion so as to be insertable / removable and connects corresponding terminals of the plurality of first terminals and the plurality of second terminals. comprises a part, the,
In the wiring switching unit, two or more wirings for connecting the plurality of first terminals and the plurality of second terminals in different correspondence relations are formed,
A conversion adapter, wherein a wiring to be used among the two or more wirings can be switched . A first insertion portion in which a plurality of first terminals are arranged and a first connector is inserted;
A second insertion part in which a plurality of second terminals are arranged and a second connector is inserted;
Wiring switching in which wiring is formed between the first insertion portion and the second insertion portion so as to be insertable / removable and connects corresponding terminals of the plurality of first terminals and the plurality of second terminals. And comprising
In the wiring switching unit, two or more wirings for connecting the plurality of first terminals and the plurality of second terminals in different correspondence relations are formed,
A conversion adapter , wherein a wiring to be used can be switched among the two or more wirings by changing a direction when the wiring switching unit is inserted. The wiring switching unit has a substantially prismatic shape having a plurality of side surfaces and two bottom surfaces,
Of the two or more wirings, a terminal portion of the first wiring is formed on each of two opposing surfaces of the plurality of side surfaces, and among the two or more wirings, the terminal portion of the second wiring is 3. The conversion adapter according to claim 1, wherein the conversion adapter is formed on each of two opposite faces different from the face on which the terminal portion of the first wiring is formed.   At least one of the two bottom surfaces is provided with a display indicating a correspondence relationship of which of the two or more types of wiring is used with respect to the direction when the wiring switching unit is inserted. The conversion adapter according to claim 3. Provided with a plurality of wiring switching units having different wiring patterns,
Connection between the plurality of first terminals and the plurality of second terminals by selecting and inserting one of the plurality of wiring switching units between the first insertion unit and the second insertion unit. The conversion adapter according to claim 1, wherein the relationship is switchable.   The first insertion part and the second insertion part have the same shape of a connector to be inserted, and the arrangement of terminals in the plurality of first terminals and the plurality of second terminals is different. The conversion adapter according to any one of 1 to 5.   The conversion adapter according to any one of claims 1 to 5, wherein the first insertion portion and the second insertion portion have different shapes of connectors to be inserted.   The conversion adapter according to claim 7, wherein the standard of the first connector is RS-232, and the standard of the second connector is RJ45.

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