CN2891550Y - Optical exchanger for 650nm plastic optical fiber transmission system - Google Patents
Optical exchanger for 650nm plastic optical fiber transmission system Download PDFInfo
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- CN2891550Y CN2891550Y CNU2005201398417U CN200520139841U CN2891550Y CN 2891550 Y CN2891550 Y CN 2891550Y CN U2005201398417 U CNU2005201398417 U CN U2005201398417U CN 200520139841 U CN200520139841 U CN 200520139841U CN 2891550 Y CN2891550 Y CN 2891550Y
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Abstract
Disclosed is an optical switch for 650mn plastics optical fiber transmission system relating to network equipment, in particular to a user terminal equipment of the optical network. The utility model comprises two main control panels with the core of switching chip KS8999, the two main control panels are composed of a 16 path commutation system by parallel connection of medium stand-alone interface MII. Every KS8999 chip processes eight physical layer transceivers, every KS8999 chip is provided with controlling and servicing function block: flowing control, VLAN, priority processing, MAC searching engine with 1K space, queuing priority management, buffer area management, eight access controllers, eight physical layer transceiver, E2PROM/processing connector, LED operational state showing, MII/SNI special external connector and MAC connector. The 1550nm, 1310nm, 850nm conventional silica fiber signals are separately changed into 650nm plastics optical fiber signal respectively and enter the user terminals.
Description
Technical field
The utility model relates to a kind of network equipment, especially a kind of subscriber terminal equipment of optical-fiber network, " last kilometer " subscriber terminal equipment that just is commonly called as usually.
Background technology
The silica fiber network information on the existing backbone must be through light/electricity, electricity/light conversion when access user terminal, and this changing turns over journey and not only influence transmission speed, and causes signal attenuation, information distortion, is subject to external interference, and the information that also is prone to is stolen.
In order to change the above-mentioned defective in the existing information transmission, a kind of all-optical network just under study for action, all-optical network becomes the first-selection of (ultrahigh speed) broadband network at a high speed of future generation with its good transparency, wavelength routing characteristic, compatibility and extensibility.After converting existing 1550nm, 1310nm, 850nm silica fiber signal to 650nm plastic fiber signal respectively, the exchange that must carry out ethernet frame connects transmission, just can enter user terminal then.
The utility model content
The utility model purpose is exactly a kind of optical switch that existing 1550nm, 1310nm, 850nm silica fiber signal can be converted to the 650nm plastic fiber transmission system of 650nm plastic fiber signal respectively of design.
The utility model comprises that two is the master control borad of core with exchange chip KS8999, and two master control borads are by the medium independent interface MII switching system that constitutes 16 tunnel in parallel; Be integrated with eight physical layer transceivers on every chip block KS8999, every chip block KS8999 has following control and service functional block respectively: the MAC in flow control, VLAN, priority treatment, 1K space searches engine, queue priority's management, buffer queue management, 8 access controllers, 8 physical layer transceivers, E2PROM/ processor interface, the demonstration of LED operating state, MII/SNI special external interface, MAC interface.
Switch is a nucleus equipment of forming network system.The utility model be one have simplification, at a low price, the trade-to product of high-performance and the intensive characteristics of high port.
The utility model is to transmit by the relative decision information simply of the MAC Address in each Frame to realize exchanges data.Have 16 ports of supporting the dynamic virtual net, can determine their subordinate automatically by Intellective Management Software.Port is by determine the subordinate of virtual net by MAC Address, logical address or the protocol type of network data frame.When a network node had just connected networking, switch ports themselves was also unallocated, so switch dynamically puts this port under certain virtual net by the MAC Address that reads network node.In case after the webmaster personnel configured like this, user's computer can change switch ports themselves neatly, and can not change the dependency of this user's virtual net, and if undefined MAC Address appears in the network, then can report to the webmaster personnel.
Its operation principle is as follows:
The local area network (LAN) that the utility model is formed is positioned at the second layer of OSI Reference Model, i.e. data link layer, and the message form of processing is the Frame that is positioned at the second layer.The course of work of the present utility model mainly comprises the stages such as address learning, filtration and forwarding data, elimination loop.
(1) study of mac address table: the utility model can be recognized the MAC Address of equipment that is connected with each port at work, and sets up the mapping relations of MAC Address and corresponding port, it is kept in the mac address table of switch then.All be connected with at each port under the situation of equipment, in the mac address table of anxiety, have 16 mapping relations.
What the utility model adopted is straight-through pass-through mode, just begins to transmit Frame when allowing the destination address of switch in being checked through Frame.The address of target device (MAC Address) takies 6 bytes in Frame, promptly only need receive preceding 6 bytes just can begin to transmit Frame, thereby before transmitting Frame, do not do wrong verification, but carry out verification at destination device, if what receive is wrong frame, then can abandon this frame, and require to retransmit.
When switch receives a Frame, its meeting query aim port in mac address table, if found this port (be actually found target device MAC Address corresponding port number), just Frame is forwarded to this port, otherwise this Frame can be flooded to other all of the port except that the source port that sends this Frame.
A mac address table is arranged in the utility model, and it has two major functions, and the one, follow the tracks of the equipment that is connected on the switch, the corresponding relation between apparatus for establishing and the switch; The 2nd, after receiving a Frame, can determine by mac address table which port Frame is forwarded to.For the switch that newly is linked in the network, its mac address table is empty, should fill mac address table by learning functionality.
When guaranteeing that the equipment that each port connects has all sent Frame at least one time, mac address table has promptly been set up fully.
(2) data forwarding and filtration:
Include the MAC Address of source device and the MAC Address of target device in the Frame, the mac address table that the switch utilization has been set up is found target device fast, by corresponding port data forwarding is gone out then.Is example to send data form computer 1 to computer 2:
A) switch receives the Frame that computer 1 sends over from port one;
B) switch obtains the address information Address1 of this Frame;
C) switch finds to have had the address information of Addess1 in mac address table, and sets up mapping relations with this MAC Address;
D) switch directly is transmitted to port 2 with this Frame, and guarantees that these data do not send to other port;
Thereby point-to-point communication between the realization computer.
(3) the utlity model has the mechanism of eliminating the loop: prevented to occur from the problem that the data that certain port sends are got back to source port or other port again through Network Transmission.Be the consideration of system safety, switch is arranged to have the system of redundant link.
The utility model can provide the multiple network interconnecting function.The exchange function provides bigger bandwidth for each working node, and the transparency of agreement makes switch be directly installed in the multiprotocol network under the simple situation of software arrangements.The utility model directly uses 650nm plastic fiber, matching used optical repeater, optical-electrical converter, light photoconverter and light network interface card with it, and needn't make high-rise HardwareUpgring.The utility model provides 16 100M ports, use 650nm plastic fiber (POF) as transmission medium, can be the office automation of office of army, research institute, military universities and colleges etc., provide services on the Internet for the exchanges data of naval vessels, for the transfer of data between air force's airborne equipment etc., more can be local government department, medium-sized and small enterprises, education sector etc., provide remote Fast Ethernet to connect.
The utility model comprises power supply circuits, a main control chip KS8999_208, filter circuit, the 25MHz crystal oscillating circuit, eight retable material fiber optic interface circuits, power supply circuits comprise that the 220V alternating voltage transfers to+the 5V dc voltage circuit, + 5V direct voltage transfers to+the 3.3V dc voltage circuit, + 5V direct voltage transfers to+the 2.0V dc voltage circuit, each retable material fiber optic interface circuits is made up of control chip TODX2402 and auxiliary circuit respectively, filter circuit is connected to+output of 2.0V direct voltage, eight retable material fiber optic interface circuits are connected to the pin 5 of main control chip KS8999_208,6,9,10,19,20,22,23,30,31,33,34,43,44,47,48,54,55,57,58,61,62,64,65,196,197,199,200,203,204,206, on 207, the 25MHz crystal oscillating circuit is connected on the pin 176 and pin 177 of main control chip KS8999_208.
The main control chip of optical switch uses KS8999_208.KS8999_208 is a Micrel company product, and this family device comprises that two kinds of model: KS8999_208 are business level, and the temperature range of its work is 0 ℃～70 ℃, and 208 pins are arranged.
This device is the 10/100M exchanger chip of 9 ports (8+1) transceiver, and 8 ports can be fiber mode or UTP pattern.Have 128k frame interior buffering area, 2.0Gbps inner high speed bandwidth, integrated address searching engine is supported the absolute MAC Address of 1K; Automatic address search, memory and forwarding.Both can be used for the conversion of simple physics layer, can be used as comprehensive storage/transmission bridge circuit again.
Utilize this main control chip can realize single-chip, multiport solution.Its inside has 9 MAC unit, wherein 1～8 can directly connect exchange mouthful, and 9 mouthfuls can meet MII/SNI, links to each other with router or gateway with convenient.If 8 oral sexes are changed planes, then use a slice can reach requirement, combination gets final product if port number, then can use multi-disc more than 8.Switch also can be provided with 16 or 24 or 32 or 48 or 96 ports.
In the utility model ,+5V direct voltage transfers to+the 3.3V dc voltage circuit ,+the 5V direct voltage transfers to+also adopted the MIC29302BT pressurizer respectively in the 2.0V dc voltage circuit.
The amplifying circuit that plastic fiber interface circuit of the present utility model is made up of integrated circuit TODX2402 and transistor is formed, integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection, pin 2 meets main control chip KS8999_208 by electric capacity, pin 3 meets main control chip KS8999_208 by capacitor C, pin 4 connects by resistance, transistor AND gate main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, pin 8 meets main control chip KS8999_208 by capacitor C, and pin 9 meets main control chip KS8999_208 by electric capacity.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is one of circuit theory diagrams of the present utility model;
Fig. 3 is two of circuit theory diagrams of the present utility model;
Fig. 4 is three of circuit theory diagrams of the present utility model;
Fig. 5 is four of circuit theory diagrams of the present utility model;
Fig. 6 is five of circuit theory diagrams of the present utility model;
Fig. 7 is six of circuit theory diagrams of the present utility model;
Fig. 8 is seven of circuit theory diagrams of the present utility model;
Fig. 9 is a display circuit schematic diagram of the present utility model.
Specific embodiment
The utility model is made up of power supply circuits, main control chip KS8999_208, filter circuit, 25MHz crystal oscillating circuit, eight retable material fiber optic interface circuits.
Power supply circuits comprise the 220V alternating voltage transfer to+the 5V dc voltage circuit ,+the 5V direct voltage transfers to+the 3.3V dc voltage circuit ,+the 5V direct voltage transfers to+the 2.0V dc voltage circuit, adopts the MIC29302BT pressurizer respectively in above-mentioned two transforming circuits.
Filter circuit is connected to+output of 2.0V direct voltage, and each retable material fiber optic interface circuits is made up of integrated circuit TODX2402 and auxiliary circuit respectively.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 1 interface circuit, pin 2 passes through capacitor C
1Connect the pin 196 of main control chip KS8999_208, pin 3 passes through capacitor C
2Connect the pin 197 of main control chip KS8999_208, pin 4 passes through resistance R
8, transistor V
1, V
2, resistance R
9, R
10, R
11, R
12, R
13Be connected with the pin 190 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT1, and pin 8 passes through capacitor C
4Connect the pin 200 of main control chip KS8999_208, pin 9 passes through capacitor C
3Connect the pin 199 of main control chip KS8999_208.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 2 interface circuits, pin 2 passes through capacitor C
7Connect the pin 206 of main control chip KS8999_208, pin 3 passes through capacitor C
8Connect the pin 207 of main control chip KS8999_208, pin 4 passes through resistance R
21, transistor V
3, V
4, resistance R
22, R
23, R
24, R
25, R
26Be connected with the pin 191 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT2, and pin 8 passes through capacitor C
6Connect the pin 204 of main control chip KS8999_208, pin 9 passes through capacitor C
5Connect the pin 203 of main control chip KS8999_208.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 3 interface circuits, pin 2 passes through capacitor C
9Connect the pin 5 of main control chip KS8999_208, pin 3 passes through capacitor C
10Connect the pin 6 of main control chip KS8999_208, pin 4 passes through resistance R
34, transistor V
5, V
6, resistance R
35, R
36, R
37, R
38, R
39Be connected with the pin 192 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT3, and pin 8 passes through capacitor C
12Connect the pin 10 of main control chip KS8999_208, pin 9 passes through capacitor C
11Connect the pin 9 of main control chip KS8999_208.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 4 interface circuits, pin 2 passes through capacitor C
15Connect the pin 22 of main control chip KS8999_208, pin 3 passes through capacitor C
6Connect the pin 23 of main control chip KS8999_208, pin 4 passes through resistance R
47, transistor V
7, V
8, resistance R
48, R
49, R
50, R
51, R
52Be connected with the pin 193 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT4, and pin 8 passes through capacitor C
14Connect the pin 20 of main control chip KS8999_208, pin 9 passes through capacitor C
13Connect the pin 19 of main control chip KS8999_208.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 5 interface circuits, pin 2 passes through capacitor C
17Connect the pin 30 of main control chip KS8999_208, pin 3 passes through capacitor C
18Connect the pin 31 of main control chip KS8999_208, pin 4 passes through resistance R
60, transistor V
9, V
10, resistance R
61, R
62, R
63, R
64, R
65Be connected with the pin 68 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT5, and pin 8 passes through capacitor C
20Connect the pin 34 of main control chip KS8999_208, pin 9 passes through capacitor C
19Connect the pin 33 of main control chip KS8999_208.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 6 interface circuits, pin 2 passes through capacitor C
23Connect the pin 47 of main control chip KS8999_208, pin 3 passes through capacitor C
24Connect the pin 48 of main control chip KS8999_208, pin 4 passes through resistance R
73, transistor V
11, V
12, resistance R
74, R
75, R
76, R
77, R
78Be connected with the pin 69 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT6, and pin 8 passes through capacitor C
22Connect the pin 44 of main control chip KS8999_208, pin 9 passes through capacitor C
21Connect the pin 43 of main control chip KS8999_208.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 7 interface circuits, pin 2 passes through capacitor C
25Connect the pin 54 of main control chip KS8999_208, pin 3 passes through capacitor C
26Connect the pin 55 of main control chip KS8999_208, pin 4 passes through resistance R
86, transistor V
13, V
14, resistance R
87, R
88, R
89, R
90, R
91Be connected with the pin 70 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT7, and pin 8 passes through capacitor C
28Connect the pin 58 of main control chip KS8999_208, pin 9 passes through capacitor C
27Connect the pin 57 of main control chip KS899_2089.
Integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection in plastic fiber 8 interface circuits, pin 2 passes through capacitor C
31Connect the pin 64 of main control chip KS8999_208, pin 3 passes through capacitor C
32Connect the pin 65 of main control chip KS8999_208, pin 4 passes through resistance R
99, transistor V
15, V
16, resistance R
100, R
101, R
102, R
103, R
104Be connected with the pin 71 of main control chip KS8999_208, pin 5, pin 7 connect+the 3.3V dc voltage power supply, and pin 6 meets VCCT8, and pin 8 passes through capacitor C
30Connect the pin 62 of main control chip KS8999_208, pin 9 passes through capacitor C
29Connect the pin 61 of main control chip KS8999_208.
Above-mentioned transistor V
1, V
2, V
3, V
4, V
5, V
6, V
7, V
8, V
9, V
10, V
11, V
12, V
13, V
14, V
15, V
16Be 9013SMD (SOT23) transistor.
The 25MHz crystal oscillating circuit is connected on the pin 176 and pin 177 of main control chip KS8999_208.
Connector XP1, XP2 are flat cable socket FC20P, and V1-32 is a green LED, and V33 is a red light emitting diodes.
Claims (5)
1, the optical switch of 650nm plastic fiber transmission system is characterized in that comprising that two is the master control borad of core with exchange chip KS8999, and two master control borads are by the medium independent interface MII switching system that constitutes 16 tunnel in parallel; Be integrated with eight physical layer transceivers on every chip block KS8999, every chip block KS8999 has following control and service functional block respectively: the MAC in flow control, VLAN, priority treatment, 1K space searches engine, queue priority's management, buffer queue management, 8 access controllers, 8 physical layer transceivers, E2PROM/ processor interface, the demonstration of LED operating state, MII/SNI special external interface, MAC interface.
2, optical switch according to the described 650nm plastic fiber of claim 1 transmission system, it is characterized in that optical switch comprises power supply circuits, a main control chip KS8999_208, filter circuit, the 25MHz crystal oscillating circuit, eight retable material fiber optic interface circuits, power supply circuits comprise that the 220V alternating voltage transfers to+the 5V dc voltage circuit, + 5V direct voltage transfers to+the 3.3V dc voltage circuit, + 5V direct voltage transfers to+the 2.0V dc voltage circuit, each retable material fiber optic interface circuits is made up of connector T ODX2402 and auxiliary circuit respectively, filter circuit is connected to+output of 2.0V direct voltage, eight retable material fiber optic interface circuits are connected to the pin 5 of main control chip KS8999_208,6,9,10,19,20,22,23,30,31,33,34,43,44,47,48,54,55,57,58,61,62,64,65,196,197,199,200,203,204,206, on 207, the 25MHz crystal oscillating circuit is connected on the pin 176 and pin 177 of main control chip KS8999_208.
3,, it is characterized in that+the 5V direct voltage transfers to+adopt the MIC29302BT pressurizer in the 3.3V dc voltage circuit according to the optical switch of the described 650nm plastic fiber of claim 2 transmission system.
4,, it is characterized in that+the 5V direct voltage transfers to+adopt the MIC29302BT pressurizer in the 2.0V dc voltage circuit according to the optical switch of the described 650nm plastic fiber of claim 2 transmission system.
5, optical switch according to the described 650nm plastic fiber of claim 2 transmission system, it is characterized in that the amplifying circuit that the plastic fiber interface circuit is made up of integrated circuit TODX2402 and transistor forms, integrated circuit TODX2402 pin 1 and pin 11,12,13,14 ground connection, pin 2 meets main control chip KS8999_208 by electric capacity, pin 3 meets main control chip KS8999_208 by capacitor C, pin 4 passes through resistance, transistor AND gate main control chip KS8999_208 connects, pin 5, pin 7 connects+the 3.3V dc voltage power supply, pin 8 meets main control chip KS8999_208 by capacitor C, and pin 9 meets main control chip KS8999_208 by electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201398417U CN2891550Y (en) | 2005-12-16 | 2005-12-16 | Optical exchanger for 650nm plastic optical fiber transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201398417U CN2891550Y (en) | 2005-12-16 | 2005-12-16 | Optical exchanger for 650nm plastic optical fiber transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2891550Y true CN2891550Y (en) | 2007-04-18 |
Family
ID=38022209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201398417U Expired - Lifetime CN2891550Y (en) | 2005-12-16 | 2005-12-16 | Optical exchanger for 650nm plastic optical fiber transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2891550Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365979C (en) * | 2005-12-16 | 2008-01-30 | 江苏华山光电有限公司 | Optical exchanger for 650nm plastic optical fiber transmission system |
-
2005
- 2005-12-16 CN CNU2005201398417U patent/CN2891550Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365979C (en) * | 2005-12-16 | 2008-01-30 | 江苏华山光电有限公司 | Optical exchanger for 650nm plastic optical fiber transmission system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080130 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |