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A realization method and device for ring current and magnetic ring signal

A realization method, ring current technology, applied in the field of communication, can solve the problem of high cost and achieve the effect of cost saving

Inactive Publication Date: 2012-01-25
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] It can be seen that the above-mentioned scheme for generating the ringing current signal and the magnetic ringing signal is realized by using two ringing current modules, and the cost is relatively high.

Method used

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  • A realization method and device for ring current and magnetic ring signal
  • A realization method and device for ring current and magnetic ring signal
  • A realization method and device for ring current and magnetic ring signal

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Experimental program
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Embodiment Construction

[0029] The embodiment of the present invention provides a method for realizing ringing current and magnetic ringing signal, which specifically includes: superimposing an output signal of the ringing current module on the input -48V, generating a ringing current signal RING, and generating a ringing current signal RING at the output of the ringing current module. The output terminal of the current signal is connected in parallel with a capacitor with a withstand voltage greater than or equal to 250V, and then a capacitor with the same withstand voltage greater than or equal to 250V is connected in series to the ground, and the two capacitors are connected in parallel to generate a two-wire-to-ground balanced SRING-, SRING+ magnetic bell Signal. in,

[0030] The method for generating the ringing current signal: superimpose the first output end of the ringing current module on the DC-48V input end, connect the other input end of the ringing current module to the ground terminal ...

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Abstract

The invention relates to a method and a device for realizing ringing current and magnetic fluid signals. The method comprises the following specific steps: a first output end of a ringing current module is overlapped to a direct current negative input end and another input end of the ringing current module is connected with a grounding terminal; a magnetic fluid signal output wire is connected with a second output end of the ringing current module to output magnetic fluid signals; a first capacitance is parallelly connected with the second output end of the ringing current module and the magnetic fluid signal output wire as a negative output end of the magnetic fluid signals; a second capacitance is serially connected with the grounding terminal as a positive end of the magnetic fluid signals. Therefore, the method and the device of the invention can be realized by utilizing the ringing current module to generate the ringing current and the magnetic fluid signals, thus greatly saving the cost.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for realizing a ringing current and a magnetic ringing signal. Background technique [0002] The ringing current signal and the magnetic ringing signal are two kinds of signals provided by the common electric user's phone and the magnetic user's phone of the terminal in the exchange respectively, and the two kinds of signals are all realized by the ringing current module in different ways, as follows: [0003] The generation circuit of the ring current signal is as figure 1 Shown: Connect one end of the ring current module input terminal to the -48V power supply, and the other end to the analog ground, and at the same time, use another output signal from the output terminal of the ring current module as a bias signal to superimpose on the -48V input terminal to generate a 25HZ AC The ring current signal RING of 75V is used to send ringing to the subscr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M19/02H04M19/06
Inventor 孟子琳
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD