JPH1124999A - Pc card, connector and connection structure of pc card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent data from being leaked out illegally with simple configuration by providing a connector with a switch that responds to a specific structure, connecting normally internal distribution when a PC card is interfitted into a connector having a specific structure and disconnecting the specific internal distribution when it is interfitted into a connector that does not have a specific structure. SOLUTION: A PC card 10 is provided with connector guides 11 and 12 which conform PCMCIA. The guide 12 has a prescribed projected shape and is provided with a switch 13 that is turned ON when it is not in a depressed state and is turned OFF when it is depressed. In the card 10, when the switch 13 is ON, internal distribution is normally connected and it is in 100% usable state. When it is OFF, specific internal distribution is disconnected, and its use is in a limited state, for instance, in an unusable state. Thus, data that are stored in the card 10 are prevented from being leaked out.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a PC card, a connector, and a connection structure for a PC card.

[0002]

2. Description of the Related Art A PC card adopting a shape and a pin arrangement compliant with PCMCIA can be connected to any system having a connector also compliant with PCMCIA. FIG. 14 is a diagram showing a configuration of the PC card 1 conforming to PCMCIA. As shown in the figure, P ends are provided at both ends on the side provided with the socket for inserting the pins on the connector side.
It has predetermined connector guides 2 and 3 for preventing the C card 1 from being inserted upside down.

FIG. 15 is a diagram showing a configuration of a system-side connector 4 for connecting the PC card 1 shown in FIG.
FIG. 15A is a view of the relationship between the PC card 1 and the connector 4 as viewed from above, and FIG.
FIG. 3 is a diagram viewed from the direction of the arrow shown in FIG. As illustrated, the connector 4 includes guides 5 and 6 that engage with connector guides 2 and 3 provided in the PC card 1. By inserting the PC card 1 into the connector 4 along the guides 5 and 6, the card can be prevented from being inserted upside down, and the power pins, ground pins, pins, and the like can be accurately connected. The pin group 7 of the connector 4 is connected to a bus inside the system.

[0004]

A PC card conforming to PCMCIA can be conveniently used in a plurality of systems having connectors also conforming to PCMCIA. For example, a memory card has an advantage that data can be exchanged between the respective systems in the same manner as a floppy disk. However, the above P
A PC card conforming to CMCIA also has a disadvantage that data in the system and data in the PC card are liable to be illegally taken out using the PC card as a medium. Therefore, in order to prevent unauthorized data leakage,
It has been proposed that a touch key is provided on a card body, and only when a predetermined ID number or code is input by operating the key, reading and writing of information in an IC chip is permitted to maintain confidentiality ( JP-A-2-253389
Reference, FIG. 1). However, in the case of the card, it is necessary to provide a special touch key on the card body or to provide an arithmetic unit for comparing ID numbers and codes inputted by key operation, which complicates the structure of the card and increases the cost. Leads to.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a PC card, a connector, and a connection structure of a PC card having a function of preventing illegal outflow of data with a simpler configuration.

[0006]

A first PC card according to the present invention is a PC card which is connected to a system by being fitted to a connector. A switch responsive to a specific structure provided, the switch connects the internal wiring normally when the PC card is fitted to the connector having the specific structure, and the PC card When fitted to a connector having no specific structure, a specific internal wiring is cut off.

A second PC card according to the present invention is the first PC card, characterized in that the switch having a predetermined projection is provided on a side surface of a connector guide so as to be able to protrude and retract.

A third PC card according to the present invention is the first PC card, wherein a part of a member forming a connector guide is a movable member for switching the switch.

A first connector of the present invention is a connector that is fitted to a PC card and connects the PC card to a system. When the PC card is fitted to the connector, the first connector is attached to the PC card. A switch responsive to a specific structure provided, wherein the switch is provided on a side into which the PC card is inserted so that the PC card can be used when the PC card having the specific structure is fitted. A connection state between a pin and a pin provided to face the pin is switched.

A second connector according to the present invention is the first connector, characterized in that the switch having a predetermined projection is provided in a state in which the switch can be inserted into and retracted from a guide into which a PC card is inserted.

A third connector according to the present invention is the first connector, wherein a part of a guide that engages with a connector guide provided in the PC card is provided as the switch.

The connection structure of the first PC card of the present invention is as follows.
A PC card connection structure comprising a combination of a PC card and a connector that fits into the PC card and connects the PC card to a system, wherein a specific structure is specified in advance for one of the PC card and the connector. A switch responsive to the specific structure is provided on the other side, and the switch normally connects the internal wiring when the specific structure is detected when fitting the PC card to the connector. When the specific structure is not detected, a specific internal wiring is cut.

The connection structure of the second PC card of the present invention is as follows.
The connection structure of the first PC card, wherein the PC card includes the switch having a predetermined protrusion shape so as to be able to protrude and retract from a side surface of a connector guide, and the connector has the specific structure: It is characterized by comprising a cutout portion that engages with a switch provided in the PC card.

The connection structure of the third PC card of the present invention is as follows.
The connection structure for the first PC card, wherein the PC card includes a part of a member forming a connector guide as the switch, and the connector has the specific structure as a switch on the PC card. A switch switching unit is provided at a position of the guide that engages with the connector guide.

The connection structure of the fourth PC card of the present invention is as follows.
The connection structure of the first PC card, wherein the connector has the same shape as the guide at a position of one guide engaging with the connector guide of the PC card, and further includes the predetermined projection. The PC card is characterized in that, as the specific structure, the connector guide is provided with a cutout portion that engages with a projection provided on a switch included in the connector.

The connection structure of the fifth PC card of the present invention is as follows.
The connection structure of the first PC card, wherein the PC card has only one connector guide as the specific structure, and the connector is a guide that engages with a connector guide of the PC card. The switch is provided at a position of the guide of the PC card on which the connector guide is not provided.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A PC card according to the present invention is a card for storing or holding data, such as a memory card, which needs to be protected from illegal outflow, and is connected to a system having a corresponding specific connector. Only in this case, the internal wiring is normally connected and switched to a 100% usable state. Here, 100% available
For example, in the case of a memory card, this means that the entire memory area can be accessed only when connected to a system having a specific connector corresponding to the card. Alternatively, when connected to a system having a specific connector corresponding to the PC card, an area of + α (extended memory) compared to a case where the system is connected to another system
Means to allow access to On the other hand, when the PC card of the present invention is connected to another system having a connector other than the specific connector,
By cutting a specific internal wiring, access to the PC card from the system side is completely prohibited or the accessible range is restricted. In the connector having a preferable configuration, a card such as a modem card which does not need to be restricted in particular for the purpose of preventing unauthorized leakage of data (hereinafter, referred to as a PC card not subject to data protection) is provided on the system side. When connected to the connector, it can be normally used. Hereinafter, the PC card of the present invention having the above features and the first to fourth embodiments of the connector corresponding to the PC card will be sequentially described with reference to the accompanying drawings.

(1) First Embodiment FIG. 1 is a diagram showing a PC card 10 according to a first embodiment. The PC card 10 includes connector guides 11 and 12 compliant with PCMCIA. Connector guide 1
2 is a switch 13 having a predetermined protrusion shape, which is ON when not pressed and OFF when pressed.
Is provided. When the switch 13 is ON, the internal wiring of the PC card 10 is normally connected and 100% usable, and when the switch 13 is OFF, a specific internal wiring is disconnected and the use of the PC card 10 is stopped. It becomes a restricted state, for example, an unusable state. The configuration of the switch 13 will be described later.

FIG. 2 is a view showing a state where the PC card 10 is inserted into a connector 20 corresponding to the PC card 10. The connector 20 includes a guide 21 that engages with the connector guide 12 of the PC card 10. The guide 21 has a concave portion 22 cut out along the protrusion shape of the switch 13 provided on the PC card 10. When the PC card 10 is inserted into the connector 20, the switch 1
Reference numeral 3 keeps the ON state by the concave portion 22 provided in the guide 21. In this case, the system using the connector 20 can use 100% of the PC card 10. When a PC card not subject to data protection is inserted into the connector 20, the system can be used 100% regardless of the type of the card.

Normal PCMCIA used in other systems
The connector guide conforming to the standard does not have the concave portion 22 as the guide 21 of the connector 20 does. Therefore, when the PC card 10 is inserted into a connector of another system, the switch 13 is depressed, and the state is switched to the switch OFF state. When the switch 13 is turned off, the use of the PC card 10 is restricted.

FIGS. 3A and 3B show the PC card 1.
FIG. 4 is a diagram illustrating a configuration of a switch 13 of “0”; Switch 13
Are urged in the direction of arrow a by a spring 14, and normally connect all the input / output lines and pins inside the circuit as shown in FIG. On the other hand, as shown in FIG.
Is pressed in the direction of arrow b, all connections between the input / output lines and the pins inside the circuit are released. Switch 1
2 is not limited to the configuration shown in FIG.
In order to invalidate a specific function when 3 is pressed, only a connection between a specific input / output line and a pin in the circuit may be cut off.

As described above, the PC card 10 according to the first embodiment is 100% used only when the PC card 10 is inserted into a dedicated system having the connector 20 corresponding to the card by the function of the switch 13. And become unusable when connected to a connector on another system. Thereby, it is possible to prevent the data stored in the PC card 10 from being illegally leaked. In addition, when a PC card that is not subject to data protection is inserted into a system having this connector 20, the PC card can be used as normal as it is inserted into another system, so that flexible versatility is ensured. be able to.

(2) Second Embodiment FIG. 4 is a diagram showing a configuration of a PC card 30 according to a second embodiment. The PC card 30 is provided with connector guides 31 and 32 conforming to PCMCIA.
The connector guide 32 is provided with a notch 33 having a predetermined shape. The PC card 30 is wired so as to operate normally only when the sockets 34 and 35 are short-circuited.

FIG. 5 shows a connector 40 provided on the system side.
FIG. 4 is a diagram showing a state in which a PC card 30 is inserted into the PC. The connector 40 includes a switch 41 that engages with the connector guide 32 of the PC card 30. Switch 41
Has a shape in which a protrusion 42 having a shape matching the cutout 33 of the PC card 30 is added to a guide provided according to PCMCIA. The switch 41 is ON in the state shown in the figure, and is turned ON when pressed rightward in the drawing.
Switch to F.

The connector 40 is provided with a notch 33
When C card 30 is inserted, switch 41 is ON
Remains. When switch 41 is ON, connector 4
0 connects the pins 34 and 35 of the PC card 30.
As a result, the PC card 30 operates normally, and the system can use the PC card 30 at 100%.

When a PC card not subject to data protection is inserted into the connector 40, the switch 41 is turned off. When switch 41 is OFF, connector 4
0 connects the PC card side pins and the system side pins. As a result, the PC card not subject to data protection operates normally, and the system can use 100% of the PC card not subject to data protection.

When the PC card 30 is inserted into a connector provided in another system, the sockets 34 and 3
No 5 is shorted and the card does not work properly. This prevents the data in the PC card 30 from being illegally leaked.

FIGS. 6A and 6B show the connector 40.
3 is a diagram showing a configuration of a switch 41 of FIG. Switch 41
Is urged in the direction of arrow a by a spring 43, and normally connects the pins 44 and 45 as shown in FIG. On the other hand, when the switch 41 is pressed in the direction of the arrow b as shown in FIG.
The corresponding pins 46 and 47 on the host side are connected.

The PC card 30 operates normally only when two or more sets of predetermined sockets are short-circuited, or when at least one set of predetermined sockets is connected to cross the pins on the host side. It may be configured as follows.
In this case, the configuration of the switch 41 of the connector 40 is a PC
What is necessary is just to change based on the connection conditions for the card 30 to operate normally.

As described above, in the PC card 30 according to the second embodiment, predetermined input / output lines are connected only when the PC card 30 is inserted into a dedicated system having a connector 40 corresponding to the card. 100% available and unusable when plugged into a connector on another system. Thereby, it is possible to prevent the data stored in the PC card 30 from being illegally leaked. In addition, when a PC card that is not subject to data protection is inserted into a system having the connector 40, the PC card can be used as usual when it is inserted into another system, so that flexible versatility is ensured. Can be.

(3) Third Embodiment FIG. 7 is a diagram showing a configuration of a PC card 50 according to a third embodiment. The PC card 50 includes a connector guide 51 conforming to PCMCIA. On the other hand, the connector guide 51
For the side facing the side where
A connector guide to be provided according to A is not provided. Alternatively, the corresponding connector guide is closed (see a range 52 surrounded by a dotted line).

FIG. 8 is a diagram showing a configuration of the connector 60 corresponding to the PC card 50. The connector 60 includes a connector guide 61 that engages with the connector guide 51 of the PC card 50. On the side facing the side where the guide 61 is provided, a switch 62 having the same shape as the guide to be provided in accordance with PCMCIA is provided. When a PC card that is not targeted for data protection is inserted into the connector 60, the switch 62 is not depressed and is kept in the OFF state. As described above, the PC card 50 does not include one of the connector guides to be provided on both sides of the card in accordance with PCMCIA. For this reason, when the PC card 50 is inserted into the connector 60, the switch 62 is depressed and switched to ON. When the switch 62 is ON, all of the pins on the PC card side and the pins on the host side are connected. On the other hand, when the switch 62 is OFF, the connection between the PC card-side pin and the host-side pin is completely disconnected. When the switch 62 is OFF, the connection between the specific pins may be cut to invalidate the specific function. Since the PC card 50 does not have a connector guide to be provided in accordance with PCMCIA, it cannot be connected to another system. That is, the PC card 50 can be used only by the present system, and the data of the present system can be read only by the PC card 50.

FIGS. 9A and 9B show the connector 60.
3 is a diagram showing a configuration of a switch 62 of FIG. As shown in (a), when the switch 62 is not pressed, the spring 64
The internal switch elements are urged in the direction of arrow a by the action of (1), and the pins on the PC card side and the pins on the system side are all disconnected. As shown in (b), when the switch 62 is pressed in the direction of arrow b, the member 63
Slides rightward (in the direction of arrow c), and the pins on the PC card side and the pins on the system side are connected. Note that the configuration of the switch 62 is not limited to the configuration shown in FIG. 9, and when the switch 62 is not pressed,
The connection between specific pins may be cut to disable a specific function.

Next, a connector 70 which is a modification of the connector 60 will be described. (A) and (b) of FIG.
FIG. 3 is a diagram showing a configuration of a switch 71 provided in a connector 70. The switch 71 has the same size as a guide provided in conformity with PCMCIA, and has a slanted front end portion that contacts the PC card 50. As shown in (a), the switch 71 is normally urged in the direction of arrow a by the action of the spring 72 and is in the OFF state. (B)
As shown in FIG. 7, when the PC card 50 is inserted, the switch 71 is slid to the left (in the direction of the arrow b) in the drawing to be turned ON.

As described above, the PC card 50
Can be used only in a system including the connector 60 or 70 corresponding to the card 50. Thereby, it is possible to prevent the data stored in the PC card 50 from being illegally leaked.

(4) Fourth Embodiment FIG. 11 is a diagram showing a configuration of a PC card 80 according to a fourth embodiment. The PC card 80 includes connector guides 81 and 82 conforming to PCMCIA. The PC card 80 uses any one of the members 83, 84, and 85 indicated by oblique lines as a switch. When the switch is pressed, the extended memory can be used in addition to the normal usable area. When is not pressed, only a normal usable area can be used. The configuration of the switches inside the PC card 80 will be described later.

FIG. 12 is a diagram showing the configuration of the connectors 90, 94 and 98 corresponding to the PC card 80. (A)
FIG. 7 is a diagram showing a connector 90 used when the member 83 of the PC card 80 is set to a switch. (B)
FIG. 5 is a view of the connector 90 as viewed from the direction of the arrow shown in FIG. The connector 90 includes guides 91 and 92 conforming to PCMCIA, and a member 93 that pushes down a switch 83 when the PC card 80 is inserted.
(C) is a diagram showing a connector 94 used when the member 84 of the PC card 80 is set to a switch.
The connector 94 has a guide 95 conforming to PCMCIA.
And 96, and a member 87 for pushing down the switch 84 when the PC card 80 is inserted. (D) is P
FIG. 8 is a diagram showing a connector 98 used when a member 85 of the C card 80 is set to a switch. Connector 98
Includes guides 99 and 100 that conform to the PCMCIA, and a member 101 that pushes down the switch 85 when the PC card 80 is inserted.

FIG. 13 is a diagram showing the configuration of the PC card 80 when the member 83 is set to a switch. When the member (switch) 83 is not depressed, the switch is urged by a spring 87 in the direction of arrow a as shown in (a), and the line to the extended memory is disconnected. As shown in (b), when the member 83 is pressed in the direction of the arrow b, the member 86 slides to the left in the figure, the switch is turned on, the line to the extension memory is connected, and the extension is performed. Use of memory becomes possible.

As described above, the PC card 80
Are connectors (90, 9) corresponding to the PC card 80.
4 or 98), the extended memory is made usable only when it is connected. Thereby, it is possible to prevent the data written in the extended memory of the PC card 80 from being illegally leaked.

[0040]

According to the first PC card of the present invention, the internal wiring is normally connected only when the PC card is connected to a predetermined connector provided in a specific system. The card can be used 100%. Further, when the PC card is connected to a connector provided in a system other than the specific system, that is, a connector other than the predetermined connector, a specific internal wiring is cut off, and, for example, becomes unusable. Its use is restricted. Thereby, it is possible to prevent data from being illegally leaked from the specific system.

The second PC card of the present invention can be used only when it is connected to a system having a connector which can be fitted without pressing down a switch having a predetermined projection shape.
If the internal wiring is connected properly and the PC card
% Can be used. In a system provided with another connector, a specific internal wiring is cut, so that its use is restricted, for example, it becomes unusable. This allows P
It is possible to prevent specific data written in the C card from being illegally leaked.

The third PC card of the present invention can be used only when it is inserted into a specific connector having a structure for pressing a switch provided on a part of the connector guide. Thereby, it is possible to prevent the data in the PC card from being illegally leaked.

In the first connector of the present invention, a PC card which normally operates only when a predetermined pin is connected,
Alternatively, a pin provided on the PC card side may be used when a specific PC card that normally operates only when predetermined pins are crossed and connected is connected, and when a PC card not covered by data protection is connected. Then, the connection state with the pin provided opposite to the pin is switched, and both PC cards operate normally. As a result, it is possible to use a specific PC card that cannot be normally used in another system while securing the use of a PC card that is not targeted for data protection. The specific PC card cannot be used in a system having a connector other than the connector. This allows
It is possible to prevent unauthorized leakage of data.

According to the second connector of the present invention, a switch having a predetermined projection shape is provided on a side surface of the connector guide, a specific PC card which can be used when the switch is not pressed, and a data protection. Excluded PC
Cards can be used. The specific PC card cannot be used in a system having a connector other than the connector. As a result, unauthorized outflow of data can be prevented.

The third connector of the present invention is a specific PC card having no connector guide on the side having a switch,
In addition, a PC card that is not subject to data protection can be used. The specific PC card cannot be used in a system having a connector other than the connector. As a result, unauthorized outflow of data can be prevented.

In the first PC card connection structure of the present invention, only when the PC card used in the connection structure is connected to a system having a corresponding connector, the PC card is provided on one of the PC card and the connector. By the operation of the switch, the internal wiring is normally connected, and the PC card can be used 100%. By using this connection structure, it is possible to prevent data in a specific PC card from being illegally leaked to the outside.

According to the second connection structure of the PC card of the present invention, only when the PC card provided with the switch having the predetermined projection shape provided on the side surface of the connector guide is fitted into the connector provided with the predetermined notch. , 100% usable. By using this connection structure,
It is possible to prevent data in a specific PC card from being illegally leaked to the outside.

In the third connection structure for a PC card according to the present invention, a PC having a part of a connector guide as a switch is provided.
Only when the card is fitted in the connector where the corresponding guide is plugged, 100% use is possible. By using this connection structure, a specific PC
It is possible to prevent data in the card from being illegally leaked to the outside.

In the fourth PC card connection structure of the present invention, 100% of PC cards used in the connection structure can be used only in a system having a corresponding connector. By using this connection structure, it is possible to prevent data in a specific PC card from being illegally leaked to the outside.

In the fifth connection structure for PC cards of the present invention, 100% of the PC cards used in the connection structure can be used only in a system having a corresponding connector. By using this connection structure, it is possible to prevent data in a specific PC card from being illegally leaked to the outside.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a PC card according to a first embodiment;

FIG. 2 is a diagram showing a state where a PC card is inserted into a connector provided on a system side.

FIGS. 3A and 3B are diagrams illustrating a configuration of a switch of a PC card. FIG.

FIG. 4 is a diagram illustrating a configuration of a PC card according to a second embodiment;

FIG. 5 is a diagram showing a state where a PC card is inserted into a connector provided on the system side.

FIGS. 6A and 6B are diagrams illustrating a configuration of a switch of a connector.

FIG. 7 is a diagram illustrating a configuration of a PC card according to a third embodiment;

FIG. 8 is a diagram showing a state in which a PC card is connected to a connector provided in the system.

FIG. 9 is a diagram showing a configuration of a switch of a connector.

FIG. 10 is a diagram illustrating a configuration of a switch included in a connector.

FIG. 11 is a diagram illustrating a configuration of a PC card according to a fourth embodiment;

FIG. 12 is a diagram showing a configuration of a connector corresponding to a PC card.

FIG. 13 shows a state where a predetermined member is set to a switch.
It is a figure showing composition of a C card.

FIG. 14 is a diagram showing a configuration of a PC card conforming to PCMCIA.

FIG. 15 is a diagram showing a configuration of a system-side connector for connecting the PC card shown in FIG. 14;

[Explanation of symbols]

1,10,30 PC card, 2,3,11,12,3
1,32,51 Connector guide, 4,20,40,6
0, 70, 90, 94, 98 connectors, 5, 6, 2
1,61 guide, 13,41,62,83,84,8
5 switches, 23 convex parts, 33 notch parts, 93, 9
7,101 members

Claims (11)

[Claims] 1. A PC card to be connected to a system by fitting to a connector, comprising: a switch responsive to a specific structure provided on the connector when the PC card is fitted to the connector; When the PC card is fitted to the connector having the specific structure, the internal wiring is normally connected, and when the PC card is fitted to the connector having no specific structure. , A specific internal wiring is cut off. 2. The PC card according to claim 1, wherein the switch having a predetermined protrusion shape is provided on a side surface of the connector guide so as to be retractable.
C card. 3. The PC card according to claim 1, wherein a part of a member forming the connector guide is a movable member that switches the switch. 4. A connector which is fitted to a PC card and connects the PC card to a system, wherein the PC card is fitted to the connector when the PC card is fitted to the connector.
A switch responsive to a specific structure provided on the card side, wherein the switch is configured to enable the PC card to be used when the PC card having the specific structure is fitted. A connector for switching a connection state between a pin to be inserted and a pin provided to face the pin. 5. The connector according to claim 4, wherein the switch having a predetermined protrusion shape is provided in a state in which the switch can protrude and retract from a guide into which a PC card is inserted. 6. The connector according to claim 4, wherein a part of a guide that engages with a connector guide of the PC card is the switch. 7. A connection structure for a PC card comprising a combination of a PC card and a connector that fits into the PC card and connects the PC card to a system, wherein the PC card and the connector are connected to each other. One has a specific structure in advance, and the other has a switch responsive to the specific structure. When the specific structure is detected when fitting the PC card to the connector, the internal wiring is provided. A connection structure of a PC card, wherein the connection is normally performed, and when the specific structure is not detected, a specific internal wiring is cut. 8. The connection structure for a PC card according to claim 7, wherein the PC card includes the switch having a predetermined protrusion shape so as to be able to protrude and retract from a side surface of a connector guide. A connection structure for a PC card, wherein the specific structure includes a cutout portion that engages with a switch included in the PC card. 9. The connection structure for a PC card according to claim 7, wherein the PC card includes a part of a member forming a connector guide as the switch, and the connector has the specific structure: A connection structure for a PC card, comprising a switch switching section at a position of a guide that engages with a connector guide provided as a switch on the PC card. 10. The PC card connection structure according to claim 7, wherein the connector has the same shape as the guide at a position of one of the guides that engages with the connector guide of the PC card, and further includes a predetermined shape. The PC card according to claim 1, further comprising: a notch provided on the connector guide, wherein the notch engages with the protrusion of the switch provided on the connector. Connection structure. 11. The connection structure for a PC card according to claim 7, wherein the PC card has only one connector guide as the specific structure, and the connector engages with a connector guide of the PC card. A connection guide for the PC card, wherein the switch is provided at a position of the guide on the side of the PC card on which the connector guide is not provided.