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Remote dispatching desk access method based on PCM (pulse code modulation)

An access method and dispatching platform technology, applied in the field of communication, can solve problems such as transmission distance limitations, achieve the effect of increasing transmission distance and improving long-distance dispatching capabilities

Inactive Publication Date: 2011-05-11
BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

figure 1 It is a commonly used remote dispatcher connection diagram, figure 1 Among them, the commonly used remote dispatching console is connected to the switch through the U interface, and the switches are generally connected through ISDN, so the transmission distance is limited

Method used

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  • Remote dispatching desk access method based on PCM (pulse code modulation)
  • Remote dispatching desk access method based on PCM (pulse code modulation)
  • Remote dispatching desk access method based on PCM (pulse code modulation)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] figure 2 It is a schematic diagram of remote dispatcher access based on PCM. figure 2 Among them, the PCM-based remote dispatcher access method provided by the present invention includes the following steps:

[0022] Step 1: Add a first PCM transmission device and a second PCM transmission device on both sides of the first switch and the second switch respectively.

[0023] Step 2: Connect two B channels and one D channel on the U interface of the first switch to the corresponding time slot of the E1 interface of the first PCM transmission device.

[0024] Step 3: Connect 2 B channels and 1 D channel on the U interface of the second switch to the corresponding time slot of the E1 interface of the second PCM transmission device.

[0025] Step 4: Connect the first PCM transmission device and the second PCM transmission device through the E1 line.

[0026] Wherein, the 2 B channels and 1 D channel on the U interface of the first switch are connected to the correspondi...

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PUM

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Abstract

The invention discloses a long-distance dispatching desk access method based on PCM (pulse code modulation) in the technical filed of communication. The method comprises the following steps: adding a first PCM transmission device and a second PCM transmission device respectively at two sides of a first switcher and a second switcher; connecting two B passages and a D passage on the U interface of the first switcher to a time slot corresponding to the E1 interface of the first PCM transmission device; connecting two B passages and a D passage on the U interface of the second switcher to a time slot corresponding to the E1 interface of the second PCM transmission device; and connecting the first PCM transmission device and the second PCM transmission device through an E1 circuit. In the invention, the switcher is connected through the E1 circuit instead of an ISDN (integrated services digital network) circuit, the transmission distance is increased, and the long-distance dispatching capability of the long-distance dispatching desk is improved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a method for accessing a PCM-based remote dispatcher. Background technique [0002] A remote dispatcher is a dispatcher that is deployed in a remote location but belongs to the local dispatcher. figure 1 It is a commonly used remote dispatcher connection diagram, figure 1 Among them, the commonly used remote dispatching console is connected to the switch through the U interface, and the switches are generally connected through ISDN, so the transmission distance is limited. [0003] PCM (Pulse Code Modulation) technology is a technology that transforms a time-continuous, value-continuous analog signal into a time-discrete, value-discrete digital signal and then transmits it in the channel. Pulse code modulation is a process of sampling the analog signal first, and then quantizing and encoding the sample amplitude. In my country, PCM adopts the E1 standard, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28
Inventor 冯岩
Owner BEIJING JIAXUN FEIHONG ELECTRIC CO LTD
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