JPH0592835U - Connector device - Google Patents

Abstract

(57) [Abstract] [Purpose] A daisy chain connection is made possible by using a connector device in which a male connector and two female connectors are connected in parallel to a device having only one female connector. [Structure] Two female connectors 3 are arranged on the left and right, and a male connector 2 is arranged on the backside of the female connector at a site located in the middle of the female connector and with the male connector 2 on the back.
Connect the three connectors in parallel with cable 4. The three connectors thus configured are arranged in the case 1.
A daisy chain connection is made by connecting the male connector to the connector of the device and connecting the other devices to the two female connectors.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector for daisy chain connection.

[0002]

[Prior Art]

 Recently, the connection between information devices based on the SCSI standard, which enables high-speed data transfer, is increasing. This standard allows up to 8 devices to be used in a daisy chain connection. FIG. 3 is a connection diagram of a daisy chain connection between conventional devices. Devices, such as a display device, a floppy desk device, and a host computer, are daisy-chained using a male connector 21 and a cable 22. For example, if the first device is a host computer, the connector 20 with terminal resistance is connected to one female connector 23 of the two female connectors 23 mounted on the host computer. A terminating resistor is provided inside the connector 20 with a terminating resistor, and the signal line terminals are terminated to 5V and 0V through the terminating resistor. The other female connector 23 is connected to one female connector 23 of the next device using a male connector 21 and a cable 22, and then the other female connector 23 likewise has a male connector 21 and A cable 22 is used to sequentially connect the devices in a daisy chain. The other female connector 23 of the last device is connected to a connector 20 with a terminating resistor having a built-in terminal resistor to terminate the device. A driver / receiver 25 is an interface between the female connector 23 and the device. Although not shown, some devices have only one female connector 23. In this case, a terminating resistor circuit is provided inside the device, and a dip switch provided inside the device is set to terminate the termination. Terminate resistance. If two devices have only one female connector 23 and other devices have two female connectors 23, use a device having only one female connector 23 for daisy chain connection. It can be placed at both ends and connected to each device. However, when the number of devices having only one female connector 23 is three or more, there is a problem that the daisy chain connection cannot be performed.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above conventional problems, and a daisy chain is achieved by using a connector device in which a male connector and two female connectors are connected in parallel to a device having only one female connector. The purpose is to enable connection.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the present invention, two female connectors are arranged on the left and right sides, and a male connector is arranged on the back of the female connector in the middle of the two female connectors. Connect each connector in parallel with a cable.

[0005]

[Action]

 According to the above configuration, the two female connectors are arranged on the left and right sides, and the male connector is arranged on the back surface of the female connector at a position located in the middle of the female connector, Connect the three connectors in parallel with a cable. A daisy chain connection is made by connecting the male connector to the device connector and connecting the other devices to the two female connectors.

[0006]

【Example】

 Embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an external view showing an embodiment of the connector device of the present invention. (A) is a top view, (b) is a side view, and FIG. 2 is a connection diagram of a connector device of the present invention. In the figure, 1 is a case, which is made of metal or resin. A male connector 2 is arranged on one side surface of the case 1. A female connector 3 is provided with two female connectors 3 on the other side surface of the case 1. Reference numeral 4 denotes a cable, which connects the male connector 2 and the two female connectors 3 in parallel. In FIG. 2, reference numeral 10 denotes a connector device, which is composed of the male connector 2 and the two female connectors 3 as described above. Reference numeral 5 denotes a device, which is a host computer, a display device, a floppy desk device or the like. A female connector 7 is provided in the device A, and a male connector 8 is connected to the female connector 7. The male connector 8 and the male connector 9 are connected by a cable 6. Next, the male connector 9 and the female connector 3 of the connector device 10 are connected. Then, the male connector device 2 of the connector device 10 and the female connector 7 of the device B are connected. On the other hand, the male connector 9 is connected to the female connector 3 of the connector device 10, and the female connector 7 of the device C is connected to the male connector 8 connected via the cable 6. Thus, by using the connector device 10 for the device B having only one connector, the three devices 5 can be connected in a daisy chain. Up to eight devices 5 can be connected in a daisy chain, but if three or more devices 5 have only one connector, only devices 5 will have one connector. A daisy-chain connection can be made by using the connector device 10 for the device 5 having the connectors placed at both ends and having only one connector placed between them.

[0007]

[Effect of the device]

 As described above, in the present invention, even if there are three or more devices having only one female connector, the effect of making a daisy chain connection is great by using the connector device.

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of a connector device of the present invention, (a) is a top view and (b) is a side view.

FIG. 2 is a connection diagram of the connector device of the present invention.

FIG. 3 is a connection diagram of a daisy chain connection between conventional devices.

[Explanation of symbols]

 1 Case 2 Male Connector 3 Female Connector 4 Cable 5 Device 6 Cable 7 Female Connector 8 Male Connector 9 Male Connector 10 Connector Device 20 Connector with Termination Resistor 21 Male Connector 22 Cable 23 Female Connector 25 Driver / Receiver

Claims (2)

[Scope of utility model registration request] 1. Two female connectors are arranged on the left and right,
A connector device, characterized in that a male connector is disposed on the back face in the middle of the two female connectors and the respective connectors are connected in parallel by a cable. 2. The three connectors are housed in a metal or resin rectangular case, the two female connectors are attached to one side surface of the rectangular case, and the male connector is attached to the rectangular case. The connector device according to claim 1, which is attached to the other side surface of the case.