Communication-coaxial-cable rapid detector
A coaxial cable and detector technology, applied in the direction of instruments, measuring electronics, measuring devices, etc., can solve problems such as the trouble of changing coaxial connectors, the complexity of line selection, and the reduction of work efficiency, so as to improve work efficiency and make accurate judgments High efficiency, small size, easy to carry
Inactive Publication Date: 2015-12-30
STATE GRID CORP OF CHINA +1
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Problems solved by technology
Coaxial cables are generally used in pairs in the actual use of communication, one for reception (Rx), one for transmission (Tx), and the appearance of the two cables is the same, which allows the peer to identify which one is Rx and which one is Tx causing great difficulty
The method often used in actual testing is to randomly connect two cables fixed on the DDF digital distribution frame to the device to see if the communication is normal. If it is normal, it means that the selection is correct. However, abnormal communication is often caused by other problems, which greatly complicates the line selection problem, and it is troublesome to replace the coaxial connector, which greatly reduces the work efficiency.
Method used
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Embodiment 1
[0020] Such as figure 1 The schematic diagram of the principle structure of the present invention is shown, the indicator light adopts a pair of anti-parallel red LED lights, and the current limiting resistor is connected in series, and the indicator light is on when the signal level is higher or lower than the potential of the shielding layer by about 1.9V or more.
[0021] Such as figure 2 The schematic diagram of the cross-sectional structure of the communication coaxial cable fast detector shown, including: 1 coaxial interface; ; Insulation plugging 7; Hollow tube 8; It is that one end of the housing 6 is provided with a coaxial interface 1 without a locking structure; the other end of the housing 6 is provided with a pair of reverse-parallel LED lamps 3; the housing 6 and a pair of reverse-parallel LED lamps 3 There is also an insulating protective tube 4 between them; the inside of the housing 6 is provided with a current-limiting resistor 2; the coaxial interface 1 i...
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The invention discloses a communication-coaxial-cable rapid detector. The structure is characterized in that one end of a shell is provided with a coaxial interface of a no-locking structure; an external portion of the other end of the shell is provided with a pair of anti-parallel LED lamps; an internal portion of the shell is provided with a current-limiting resistor; one end of the coaxial interface, which is in a hollow tube and is close to the shell, is provided with an insulation plug; a concentric position of the insulation plug and the coaxial interface is provided with a needle-like cylinder; one end of the needle-like cylinder is successively connected in series with the current-limiting resistor and one end of the pair of anti-parallel LED lamps through a transmission lead; the hollow tube is connected to the other end of the pair of anti-parallel LED lamps through the transmission lead. The detector can be used repeatedly and any power supply facilities and an auxiliary tool are not needed. Construction of the detector is simple, carrying is convenient, practicability is high, usage is fast, an effect is obvious and cost is low. The detector is good for popularization and application in a communication field.
Description
technical field [0001] The patent of the present invention relates to a test instrument, in particular to a fast detector for communication coaxial cables suitable for communication coaxial cable service terminals, relay protection multiplexing terminals, and automation service terminals. The detector belongs to the technical field of instruments and meters. Background technique [0002] With the development of communication technology, coaxial cables are more and more used in the communication field. Coaxial cables are generally used in pairs in the actual use of communication, one for reception (Rx), one for transmission (Tx), and the appearance of the two cables is the same, which allows the peer to identify which one is Rx and which one is Tx caused great difficulty. The method often used in actual testing is to randomly connect two cables fixed on the DDF digital distribution frame to the device to see if the communication is normal. If it is normal, it means that the...
Claims
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Inventor 秦铭爽于惠赵晓云洪秀斌官鑫段宏霖张健李宁贾旭张德福
Owner STATE GRID CORP OF CHINA