JPH024080A - Interface connector - Google Patents

Abstract

PURPOSE:To prevent a cable in the middle of communicating from being mistakenly removed by connecting a signal detecting circuit through a high impedance to a line and, when the line is in the middle of communication, driving an LED driver part and lighting up an LED display part. CONSTITUTION:A signal detecting circuit 2 is connected through high impedance circuits 1 and 1 provided to an interface connector 8 to a carrier detection signal line (CD) 5 and a transmission request signal line (RS) 6. When both or either of the CD signal line 5 and RS signal line is turned on at present, the signal detecting circuit 2 executes a detection, an OR is obtained, and it is inputted to an LED driver part 3. The LED driver part 3 amplifies an input signal, and an LED display part 4 is lighted up. Thus, at the time of switching the cable, the cable of the line in the middle of communication can be prevented from being removed by mistake.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an interface connector, particularly J, TS
The present invention relates to an interface connector that can automatically recognize the usage status of an interface line defined in C-6361.

[Conventional technology]

Conventionally, this type of interface connector has an outer frame and a locking mechanism for physically connecting and fixing the connectors, and a physical connector for connecting the signal wires in the cable connected to the connector.
A contact for electrically connecting to a signal line in another cable (made of metal such as copper, with one end of the signal line connected by soldering, etc.), for holding the contact within the outer frame. It was composed of a framework.

[Problem to be solved by the invention]

The conventional interface connector described above only connects an external cable and does not have a function to display the usage status of the line. Therefore, when replacing the external cable while the line switching device is in operation, you may accidentally connect the line that is currently communicating. There is a risk of disconnecting the cable.

[Means to solve the problem]

The interface connector of the present invention includes a high impedance circuit for preventing an adverse effect on the line when detecting the presence or absence of a signal on the line, and a high impedance circuit for detecting the presence or absence of a signal on the line. a signal detection circuit for detecting the presence or absence of a signal; an LED display section; and an LED driver section for receiving an output signal from the signal detection circuit, driving the LED display section, and displaying the presence or absence of a signal on the line. Be equipped.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

The high impedance circuit 1 separates the signal detection circuit 2 from the carrier detection signal a (hereinafter referred to as the CD signal line) 5 and the transmission request signal line (hereinafter referred to as the R3 signal line) 6, and prevents the signal line from being affected. This is a circuit to prevent this. Other signal lines 7 are CD signal lines 5. out of the signal lines required to configure one line. All signal lines except R3 signal a6.

Now, if the CD signal line 5 or the R3 signal line 6 or both signal lines 5 and 6 are turned on, the R3 signal and the CD signal are detected in the signal detection circuit 2 via the high impedance circuit 1, and the The logical sum is calculated and outputted to the LED driver section 3.

The LED driver section 3 amplifies the signal from the signal detection circuit 2 and lights up the LED display section 4.

The power supply section 9 is common to the power supply section of the device in which the interface connector 8 is mounted, and supplies power to each of the above-mentioned blocks (excluding the LED display section 4).

2 is a perspective view of the embodiment of FIG. 1; FIG. High impedance circuit 1. Signal detection circuit 2. LED driver section 3.
Each block of the LED display section 4 is integrated with a cable connection section 10 to constitute an interface connector 8.

〔Effect of the invention〕

As explained above, the present invention provides a high impedance circuit, a signal detection circuit, an LED driver section, and an LED display section in the interface connector of the external cable connection section of the line switching device, and achieves the interface specified in JIS-C-6361. By automatically recognizing the usage status of the line using the CD signal and R8 signal, you can prevent accidents such as when replacing the external cable while the line switching device is in operation, such as accidentally disconnecting the cable of the line during communication. It has the effect of preventing

[Brief explanation of the drawing]

1 and 2 are a block diagram and a perspective view of an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... High impedance circuit, 2... Signal detection circuit, 3... LED driver section, 4... LED display section, 5... CD signal line, 6... R5 signal line, 7...・・・
Other signal lines, 8...interface connector, 9
...Power supply section, 10...Cable connection section.

Claims (1)

[Claims] A high impedance circuit for preventing an adverse effect on the line when detecting the presence or absence of a signal on the line, and a signal detection circuit that detects the presence or absence of a signal on the line via this high impedance circuit. , an LED display section,
An interface connector comprising an LED driver section for receiving an output signal from the signal detection circuit to drive the LED display section and displaying the presence or absence of a signal on the line.