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2m loopback checker

A checker and loopback technology, used in transmission monitoring/testing/fault measurement systems, etc., can solve problems such as manual measurement of 2M cables, and achieve the effect of reducing time and experience and improving work efficiency

Active Publication Date: 2017-08-04
SHANGQIU POWER SUPPLY CO OF STATE GRID HANAN ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the staff need to manually measure whether the 2M cable meets the requirements of use during the construction process, and then provide a 2M loopback checker, which saves a lot of time and experience for the staff

Method used

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  • 2m loopback checker

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Embodiment Construction

[0009] like figure 1 As shown, a 2M loopback checker is composed of resistors R1-R4, switches S1-S9, SPDT switch S10, diodes D1-D8, power supply BAT and buzzer BUZ, the positive pole of the power supply is connected to the switch S1, the switch S1 is connected in series with the fixed end of the SPDT switch S10, one of the moving ends of the SPDT switch S10 is respectively connected to the resistors R1-R4, the positive terminals of the diodes D5-D8 are connected in series with the resistors R1-R4 respectively, and the negative terminals Connect the positive ends of the diodes D1-D4 and the switches S6-S9 respectively; the negative ends of the diodes D1-D4 are connected in series with the switches S2-S5 to one end of the buzzer BUZ, and the other end of the buzzer BUZ is connected to The other moving end of the SPDT switch S10; the switches S6-S9 are all connected to the negative pole of the battery.

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Abstract

The invention provides a 2M loopback detector, which is composed of resistors R1 to R4, switches S1 to S9, a single pole double throw switch S10, diodes D1 to D8, a power supply BAT and a buzzer BUZ, wherein the power supply BAT is connected with a fixed end of the single pole double throw switch via the switch S1; one moving end of the single pole double throw switch S10 is serially connected with resistors R1 to R4; the resistors R1 to R4 and diodes D5 to D8 are serially connected with switches S6 to S9 and then connected with the negative electrode of the power supply BAT; and the diodes D5 to D8 are also serially connected with the diodes D1 to D4 and switches S2 to S5 and then connected with the other moving end of the single pole double throw switch S10 via the buzzer BUZ. Whether a 2M cable meets use requirements can be simply and accurately tested, time and experience of a worker can be reduced while a large number of 2M cables are detected, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a detection device for 2M cables, in particular to a 2M loopback checker. Background technique [0002] In the power system, optical transceivers are mostly connected to access equipment through E1, and the rate of the standard E1 interface is 2048kbit / s, commonly known as 2M port. Most of the optical transceivers used in the substation have outgoing lines of 16-63 E1 interfaces, and 2M cables are connected to the E1 interfaces through radio frequency connectors. 2M cables are widely used in optical communication, program-controlled switching, PCM access equipment and even power protection devices. [0003] The daily maintenance work of the transmission system often requires us to locate various faults and eliminate them in time. The key to fault location is to accurately locate the fault point and then eliminate the fault. For the cause of 2M channel failure, sometimes the observation and analysis method cannot solve the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/07
Inventor 石军曹海军竟勇程梦玲徐国强张雁波孟祥楠王先杰刘伟
Owner SHANGQIU POWER SUPPLY CO OF STATE GRID HANAN ELECTRIC POWER CO
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