CN202841423U - Portable signal tester for digital distribution frame connector - Google Patents

Abstract

The utility model provides a portable digital distribution frame connector signal tester. The shell of the signal tester is equipped with a conductor contact, the conductor contact is equipped with an inner core conductor, the bottom of the shell has a threaded locking interface, the top of the shell is equipped with a light-emitting diode, the end of the light-emitting diode A is welded on the shell, and the light-emitting diode B The terminal pins are connected with the inner core conductor. The tester does not need to be connected to complex test instruments, and can directly connect the interface of the 2M unbalanced connector with the detected port to determine the presence or absence of the signal and the on-off status of the channel. It is small in size and easy to carry, and the test speed is fast and accurate. The rate is high.

Description

Portable digital patch panel connector signal tester

technical field

The utility model relates to the field of digital communication, in particular to a portable digital distribution frame connector signal tester.

Background technique

DDF (Digital Distribution Frame) is a wiring connection device between digital multiplexing equipment, between digital multiplexing equipment and switching equipment or non-phone services. It can make the digital stream connection of digital communication equipment into a whole, and the input and output of signals from the rate of 2Mb/s-155Mb/s can be terminated on the DDF frame, which is a belt for wiring, line adjustment, transfer, and capacity expansion. Comes with great flexibility and convenience. At present, the unbalanced 75 ohm 2M interface (coaxial connector) is the most used on DDF. It is mainly used to connect with 2M cables to form 2M channels. Because it is a physical connection composed of hardware, during routine maintenance, technicians often encounter signal interruption faults caused by unreliable connections when troubleshooting channel faults. The 2M connector cannot display the channel status. This kind of fault usually needs to be identified with the help of a 2M test instrument. When testing the instrument, first set the online or disconnected status, and then check the alarm information after the loopback test to comprehensively judge whether it is a physical connection interruption. , the operation is complicated, and the fault judgment is not intuitive. In daily work, many channel faults are caused by 2M cable disconnection or interface receiving and receiving. It is very troublesome to use a professional 2M transmission analyzer to judge these small faults, and the general handheld is also large in size and inconvenient to carry.

Contents of the invention

The purpose of the utility model is to provide a portable digital distribution frame joint signal tester which is welded with a light-emitting diode and a 2M unbalanced joint and is easy to carry.

To achieve the above object, the technical solution of the utility model is:

A portable digital distribution frame joint signal tester, including a shell, an inner core conductor, a conductor contact piece and a light-emitting diode. The shell of the signal tester is equipped with a conductor contact piece, and the conductor contact piece is equipped with an inner core conductor. The bottom of the shell There is a threaded locking interface, a light emitting diode is installed on the top of the shell, the end pin of the light emitting diode A is welded on the shell, and the end pin of the light emitting diode B is connected with the inner core conductor.

The positive effect of the utility model is: the tester does not need to be connected with complex test instruments, and can judge the presence or absence of signals and the on-off state of the channel by directly connecting the interface of the 2M unbalanced joint with the detected port, and is small in size Easy to carry, fast testing speed and high accuracy.

Description of drawings

Figure 1. Schematic diagram of the structure of the portable digital distribution frame joint signal tester.

Detailed ways

Below in conjunction with accompanying drawing 1 further illustrate the specific embodiment of the present utility model.

Referring to Figure 1, when the threaded locking interface 6 at the bottom of the tester housing 3 is docked with the connector on the digital distribution frame or equipment, the conductor contact piece 5 will be inserted into the core wire connection hole of the docked connector, at this time when an electrical signal passes through When the joint is connected, it will be connected with the inner core conductor 4 in the conductor contact piece 5 and the light emitting diode B end pin 2 connected with the inner core conductor 4, the light emitting diode 7 and the light emitting diode A end pin 1 welded on the shell 3 form a Closed circuit, light-emitting diode 7 will shine. If there is no electric signal to pass through, the circuit formed by the above-mentioned parts is disconnected, and now the light-emitting diode 7 is not bright. Therefore, it can be judged whether the signal channel is unblocked or interrupted by whether the light emitting diode 7 emits light.

Claims (1)

1. A portable digital distribution frame joint signal tester, including a shell (3), an inner core conductor (4), a conductor contact (5) and a light-emitting diode (7), characterized in that: the shell (3) is equipped with The conductor contact (5), the conductor contact (5) is equipped with an inner core conductor (4), the bottom of the shell (3) has a threaded locking interface (6), and the top of the shell (3) is equipped with a light emitting diode (7), The terminal pin (2) of the light emitting diode is welded on the shell (3), and the terminal pin (1) of the light emitting diode is connected with the inner core conductor (4).

Images