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Communication system

A communication system and communication equipment technology, which is applied in the field of network communication, can solve the problem that the communication system cannot take into account the safety issues of TNV-1/TNV-3 circuits with power feeding and equipment safety, and achieve the effect of improving communication capabilities and reducing costs

Inactive Publication Date: 2010-01-20
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a communication system to solve the safety problem that the existing communication system cannot take into account the use of TNV-1 / TNV-3 circuits and equipment with power feeding

Method used

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Examples

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Effect test

no. 1 example

[0048]Among them, the information processing device 301 is a communication network voltage circuit, with a telephone interface 402 and an RS232 interface 403 at the same time, the telephone interface is directly connected with the working circuit information processing device inside the equipment, so that the telephone interface is TNV-1 / TNV-3 circuit, therefore, the device can be connected to an external telephone through this telephone interface, and feed power to the telephone; the RS232 interface is coupled to the working circuit inside the device through the optical coupling device 404, so that the device can realize serial communication with the outside world through the RS232 interface, and at the same time It is guaranteed that the interface is a SELV circuit, which ensures the safety of users. For example, it can communicate with the computer 42 through the serial port, and the computer 42 can complete the parameter configuration of the device and the like.

no. 2 example

[0050] Among them, the information processing device 301 is a communication network voltage circuit, with a telephone interface 402 and a network interface 503 at the same time, the telephone interface is directly connected to the working circuit inside the equipment, so that the telephone interface is a TNV-1 / TNV-3 circuit, so , the device can be connected to an external telephone through this telephone interface, and feed power to the telephone; the network interface 503 is coupled to the working circuit inside the device through the isolation transformer 504, so that the device can access the LAN 52 through the network interface 503, and at the same time ensure that the interface It is a SELV circuit, which ensures the safety of users.

[0051] In the above-mentioned first and second embodiments, since the working circuit information processing device inside the device is a TNV-1 / TNV-3 circuit, the parts that the device and the user may come into contact with, such as the sc...

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Abstract

A communication system consists of communication device including information processing unit, voltage circuit interface of communication network, safe and ultra - low voltage circuit interface and insulation coupling unit; as well as telephone terminal device and data terminal device. It features that voltage circuit interface of communication network is directly coupled with information processing unit and safety as well as ultra - low voltage circuit interface is coupled with information processing unit through insulation coupling unit.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a communication system. Background technique [0002] With the development of communication technology, microelectronics technology and computer technology are widely used in communication equipment, and all kinds of advanced communication equipment have higher and higher requirements for overvoltage and overcurrent and their protection measures. Since the hazards caused by lightning, strong electricity, static electricity and instantaneous overvoltage caused by operation often occur on communication and data lines, appropriate protective measures must be taken to avoid damage to communication equipment and transmission lines due to overvoltage and overcurrent. hazards to those involved. [0003] At present, the switches with power feeding function realize the safety of the equipment itself and the users through a series of grounding protection and overvoltage prot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M19/00G06F1/26
Inventor 曾德新
Owner HUAWEI TECH CO LTD
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