CN201608727U

CN201608727U - Converging type conversion device capable of dynamically distributing E1 ways for 16-way network bridge business

Info

Publication number: CN201608727U
Application number: CN2010201390539U
Authority: CN
Inventors: 王华卿; 关颖倩; 鄢然; 纪雪岚
Original assignee: NANJING PUTIAN NETWORK CO Ltd; Nanjing Putian Telecommunications Co Ltd
Current assignee: NANJING PUTIAN NETWORK CO Ltd; Nanjing Putian Telecommunications Co Ltd
Priority date: 2010-03-23
Filing date: 2010-03-23
Publication date: 2010-10-13
Anticipated expiration: 2020-03-23

Abstract

The utility model relates to a converging type conversion device capable of dynamically distributing E1 ways for 16-way network bridge business. The converging type conversion device structurally comprises a 16E1 EOP converging network bridge chip, a DDR SDRAM memory, an ARM microprocessor module, an Ethernet exchange chip, an Ethernet PHY chip, an E1 circuit interface chip, an FPGA chip, a 16E1 interface circuit and a clock. The converging type conversion device has the advantages that the converging type protocol conversion device with a Tag VLAN function and an inverse multiplexing function realizes converging from 16-way E1 signals to an Ethernet interface at most and resolves the problem of extension of Ethernet IP data. E1 ways are isolated completely and support point-to-point and point-to-multipoint networking application. The 16 Ethernet signals at different points respectively extend through an E1 network so as to be converged into a 100M Ethernet interface to be connected onto a switchboard, thereby saving using quantity of interfaces of the switchboard and Ethernet wiring, simplifying networking, saving cost, reducing fault points and increasing maintenance efficiency.

Description

Can be to the convergent type conversion equipment of 16 road network bridge service dynamic assignment E1 ways

Technical field

The utility model relates to a kind of can be to the convergent type conversion equipment of 16 road network bridge service dynamic assignment E1 ways.Belong to communication technical field.

Background technology

Traditional protocol converter only provides single E1 business, the perhaps conversion between multichannel E1 and the Ethernet data, the bandwidth that can only change E1 is transmitted Ethernet data, for the extension of Ethernet IP data, needs supporting transducer of a plurality of uses or corresponding data insertion equipment.The installation and maintenance of equipment is all very complicated like this.

Summary of the invention

The utility model proposes a kind of can be to the convergent type conversion equipment of 16 road network bridge service dynamic assignment E1 ways.Its purpose purport overcomes the existing above-mentioned defective of prior art, realizes that maximum 16 road E1 signals to the converging of Ethernet interface, have solved the extension problem of Ethernet IP data effectively

Technical solution of the present utility model: corresponding the joining of input/output end port that it is characterized in that the first output/input port with the DDR SDRAM of 16E1EOP convergent type bridge chip, second output/the input port of 16E1EOP convergent type bridge chip is by first input/output end port corresponding join of MII interface with Ethernet switching chip, the 3rd output/input port of 16E1EOP convergent type bridge chip and corresponding the joining of first input/output end port of ARM microprocessor module, the 4th output/input port of 16E1EOP convergent type bridge chip and corresponding the joining of first input/output end port of E1 line interface chip, corresponding the joining of second input/output end port of second input/output end port of Ethernet switching chip and ARM microprocessor module, corresponding the joining of the first output/input port of the 3rd input/output end port of ARM microprocessor module and FPGA module, corresponding the joining of second input/output end port of the second output/input port of FPGA module and E1 line interface chip, corresponding the joining of input/output end port of the 3rd output/input port of FPGA module and Panel light alarm module, corresponding the joining of output/input port of the 3rd input/output end port of E1 line interface chip and 16E1 interface circuit, corresponding the joining of output/input port of the 3rd input/output end port of Ethernet switching chip and FE interface module, corresponding the joining of the first output/input port of the 4th input/output end port of Ethernet switching chip and Ethernet PHY chip, corresponding the joining of input/output end port of the second output/input port of Ethernet PHY chip and FX interface module, the input port of the output port of clock and 16E1EOP convergent type bridge chip joins.

Advantage of the present utility model: have the convergent type protocol converter of Tag functionality of vlan and inverse multiplexing function, can realize that maximum 16 road E1 signals to the converging of Ethernet interface, have solved the extension problem of Ethernet IP data effectively.Isolate fully between the E1, the safety guarantee of private network is provided, and the E1 mapping flexibly, support point-to-point, point-to-multipoint networking to use.Far-end can cooperate the use of multiple remote equipment, the ethernet signal of 16 differences can be extended by the E1 network respectively, converging at local terminal is a linear speed 100M Ethernet interface, be connected on the switch, not only saved the usage quantity of exchange interface, also can save the Ethernet wiring, simplified networking for the user, thereby for cost is saved in networking, and the raising maintenance efficiency that reduces the fault point.

Description of drawings

Accompanying drawing 1 is can be to the convergent type conversion equipment system schematic of 16 road network bridge service dynamic assignment E1 ways.

Embodiment

Contrast accompanying drawing 1, its structure is corresponding the joining of input/output end port of the first output/input port with the DDR SDRAM of 16E1EOP (E1OVER PDH) convergent type bridge chip, second output/the input port of 16E1EOP (E1OVERPDH) convergent type bridge chip is by first input/output end port corresponding join of M II interface with Ethernet switching chip, the 3rd output/input port of 16E1EOP (E1OVER PDH) convergent type bridge chip and corresponding the joining of first input/output end port of ARM microprocessor module, the 4th output/input port of 16E1EOP (E1OVER PDH) convergent type bridge chip and corresponding the joining of first input/output end port of E1 line interface chip, corresponding the joining of second input/output end port of second input/output end port of Ethernet switching chip and ARM microprocessor module, corresponding the joining of the first output/input port of the 3rd input/output end port of ARM microprocessor module and FPGA module, corresponding the joining of second input/output end port of the second output/input port of fpga chip and E1 line interface chip, corresponding the joining of input/output end port of the 3rd output/input port of fpga chip and Panel light alarm module, corresponding the joining of output/input port of the 3rd input/output end port of E1 line interface chip and 16E1 interface circuit, corresponding the joining of output/input port of the 3rd input/output end port of Ethernet switching chip and FE module, corresponding the joining of the first output/input port of the 4th input/output end port of Ethernet switching chip and Ethernet PHY chip, corresponding the joining of input/output end port of the second output/input port of Ethernet PHY chip and FX, the input port of the output port of clock module and 16E1EOP (E1OVER PDH) convergent type bridge chip joins.

Provide 1 light, 2 electricity 3 Ethernet interfaces, possess the Ethernet function of exchange, supporting rate control (10M/100M); Support the Ethernet oversized frame, maximum frame length can reach 1522Bytes; Support the cascade of ethernet port, be easy to the capacity of activating business; Flow Control control: pause frames under the full-duplex mode and the back pressure under the semiduplex mode; Support 802.1Q and Q in Q function, support 4096*4096VLAN at most, carry out service distributing, can carry out unified planning, save the cost of user side switch the VLAN ID of whole private network according to VLAN Tag; Qin Q function realizes two-layer VLAN label, the inner VLAN that uses of maskable user, and the VLAN that adapts to backbone network divides; Support the interpolation of double T AG, remove and transparent transmission; 16 road E1 are provided at most, support the automatic identification of E1 chain line preface; Support GFP-F, two kinds of data encapsulation forms of HDLC; Support E1 single channel pattern and E1 multiplexer mode; Support Virtual Concatenation (VCAT) and link capacity to adjust standard (LCAS), meet G.7042 standard of ITU-T, VCAT﹠amp; LCAS to the mapping of E1 meet ITU-T G.7043, standard G.8040, support+/-the E1 circuit delay of 256ms is poor; Support 1～16 road VCG to divide configuration, every road VCG specifies E1 to form by 1～16 tunnel user, with VCG is the point-to-point transparent independent bearing Ethernet data 1.16E1EOP of link unit (E1OVER PDH) convergent type bridge chip: mainly by the E1/T1/J1 module, the Virtual Concatenation module, the GFP-F/HDLC module, ethernet module, buffer memory control module and processor interface module are formed.

The E1 module is finished framing, is separated frame, the circuit codec functions; The Virtual Concatenation module is responsible for a plurality of E1 passages and is merged into a passage; The GFP-F/HDLC module is finished the adaption function of ethernet frame to data flow; Ethernet module is finished the transmission and the reception of Ethernet data; The buffer memory control module is responsible for coordinating the read-write operation of each module to external cache.

2. Ethernet switching chip: the function of mainly finishing is the processing of Ethernet data.

3. Ethernet PHY chip: in the effect on this plate is to handle the Ethernet data that transmits on the optical interface FX.

4.E1 line interface chip: mainly realize the conversion of NRZ sign indicating number to the HDB3 sign indicating number, suppress the shake of E1 circuit simultaneously, drift makes it satisfy the transmission requirement of E1 circuit.

5.FPGA: use the EP1C3 of ALTRA company, mainly realize, alarm and the control of the state of lighting a lamp etc. switch.

6.ARM microprocessor module is finished 16E1EOP (E1OVER PDH) convergent type bridge chip, E1 line interface chip, the State Control of FPGA and Ethernet switching chip.

7.FE: be the RJ45 interface, provide the Ethernet electrical interface of 10/100M.

8.FX: be the SFP interface, provide the Ethernet optical interface of 10/100M.

9.DDR: be the Double Data Rate synchronous DRAM, be responsible for coordinating each module the data buffering of the read-write operation of external cache is deposited.

Claims

1. can be to the convergent type conversion equipment of 16 road network bridge service dynamic assignment E1 ways, corresponding the joining of input/output end port that it is characterized in that the first output/input port with the DDR SDRAM of 16E1 EOP convergent type bridge chip, second output/the input port of 16E1 EOP convergent type bridge chip is by first input/output end port corresponding join of MII interface with Ethernet switching chip, the 3rd output/input port of 16E1 EOP convergent type bridge chip and corresponding the joining of first input/output end port of ARM microprocessor module, the 4th output/input port of 16E1 EOP convergent type bridge chip and corresponding the joining of first input/output end port of E1 line interface chip, corresponding the joining of second input/output end port of second input/output end port of Ethernet switching chip and ARM microprocessor module, corresponding the joining of the first output/input port of the 3rd input/output end port of ARM microprocessor module and FPGA module, corresponding the joining of second input/output end port of the second output/input port of FPGA module and E1 line interface chip, corresponding the joining of input/output end port of the 3rd output/input port of FPGA module and Panel light alarm module, corresponding the joining of output/input port of the 3rd input/output end port of E1 line interface chip and 16E1 interface circuit, corresponding the joining of output/input port of the 3rd input/output end port of Ethernet switching chip and FE interface module, corresponding the joining of the first output/input port of the 4th input/output end port of Ethernet switching chip and Ethernet PHY chip, corresponding the joining of input/output end port of the second output/input port of Ethernet PHY chip and FX interface module, the input port of the output port of clock and 16E1 EOP convergent type bridge chip joins.