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Programmable telecommunication network interface

A telecommunications network and interface technology, applied in electrical components, data exchange through path configuration, digital transmission systems, etc., can solve the problems of low reliability, easy to be interfered, and long design cycle, so as to reduce power consumption and improve the system. Reliability, the effect of reducing the physical size

Inactive Publication Date: 2006-11-22
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of interface has disadvantages such as large volume, high power consumption, susceptibility to interference, low reliability, and inability to edit and update interface logic functions at any time.
At the same time, the traditional telecommunication network interface has a long design cycle and high cost due to the complex process

Method used

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  • Programmable telecommunication network interface
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  • Programmable telecommunication network interface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: as figure 1 As shown, the working principle and implementation plan of the present invention are: use MAXPLUSII software of ALTERA Company to compile the description file to form a download configuration file. Then download the download file to the ACEX1K30 device through the download cable, or use the programmer to burn the configuration chip.

[0027] The programmable telecommunication network interface includes decoding 1, digital phase-locked loop 2, frame synchronization state machine 3, write time slot selector 4, read time slot selector 8, serial / parallel conversion 5, parallel / serial conversion 6, framing Device 7, code 9 parts, it is characterized in that mainly by digital phase-locked loop 2, frame synchronization state machine 3, write time slot selector 4, read time slot selector 8, framer 7 parts form, line code input signal line It is respectively connected with decoding 1 and digital phase-locked loop 2, digital phase-locked loop 2 is respe...

Embodiment 2

[0033] Embodiment 2: as figure 1 , figure 2 , image 3 , Figure 4 As shown, the programmable telecommunication network interface can be combined with the Ethernet interface to complete the protocol conversion work. The programmable telecommunication network interface writes the received data into the buffer cache, and the Ethernet interface reads the data from the buffer and packs it out. Or the Ethernet interface writes the received data into the buffer cache, and the programmable telecommunication network interface reads the data from the buffer and outputs it in frames. Others are the same as in Example 1.

Embodiment 3

[0034] Embodiment 3: as figure 1 , figure 2 , image 3 , Figure 4 As shown, the programmable telecommunication network interface is combined with the programmable logic device containing the embedded central microprocessor, and downloaded to a chip to realize the system on chip (SOC). The programmable telecommunication network interface exchanges data with the embedded central microprocessor through the data line, and other

[0035] Example 1 is the same.

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PUM

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Abstract

Programmable telecommunication network interface (E1 interface) is mainly composed of decoding (1), digital phase-locked loop (2), frame synchronization state machine (3), write time slot selector (4), read time slot selector (8), Serial / parallel conversion (5), parallel / serial conversion (6), framer (7) and encoding (9) components are organically composed, and can complete the sending and receiving of data conforming to the E1 frame format. The working principle is that when sending data, the ordinary binary data is processed by E1 frame formatting to form E1 frame data, and the E1 frame data is encoded by HDB3 and output from the line end; when receiving data, bit synchronization and synchronization are performed according to the line signal received by the line end. HDB3 decoding, the decoded E1 frame recovers the normal binary data of the original sender through frame synchronization and deframe. The invention has the advantages of small size, low power consumption, high reliability, programmable update, etc., and has broad application prospects in embedded systems, switches, interface protocol converters and other systems.

Description

technical field [0001] The invention belongs to communication interface technology, especially a programmable telecommunication network interface, which is suitable for interface conversion of access equipment, switching equipment and routing equipment of the telecommunication network. Background technique [0002] Before the present invention is made, the traditional telecommunication network interface uses separate interface chips, buffer chips and control chips to be completed on a printed circuit board (PCB) through complex wiring. This kind of interface has disadvantages such as large volume, high power consumption, susceptibility to interference, low reliability, and inability to edit and update interface logic functions at any time. At the same time, the traditional telecommunication network interface has a long design cycle and high cost due to the complex process. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L29/02H04L7/033
Inventor 傅伟煌孟利民张江鑫徐林静
Owner ZHEJIANG UNIV OF TECH