CN101287047B - Signal transmission method, system, display system and single board for interface indicating lamp - Google Patents
Signal transmission method, system, display system and single board for interface indicating lamp Download PDFInfo
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- CN101287047B CN101287047B CN2008100969490A CN200810096949A CN101287047B CN 101287047 B CN101287047 B CN 101287047B CN 2008100969490 A CN2008100969490 A CN 2008100969490A CN 200810096949 A CN200810096949 A CN 200810096949A CN 101287047 B CN101287047 B CN 101287047B
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Abstract
The invention discloses a method, a system and veneers for signal transmission and a display system of a network interface indicator lamp. The signal transmission method comprises the steps that: collecting signals of the connection state of each veneer; summarizing the signals of the connection state and transmitting the summarized signals to the corresponding network interface of each veneer by a bus. In application of the embodiment of the invention, the remote display of the connection state of the server board is realized by a management channel in an ATCA platform, therefore, users can acquire the connection state of the server board in real time and the usability of the system is increased.
Description
Technical field
The present invention relates to communication technical field, particularly method for transmitting signals, system, network port indicator display system and veneer.
Background technology
ATCA (Advanced Telecommunication Computing Architecture, advanced telecom computer architecture) is as a kind of tele-computer framework of opening, for a kind of good platform has been created in the realization and the standardization of tele-computer.Structural representation in the ATCA platform generally includes server board, SMM (Shelf Management Module, backboard administration module) plate, the straight-through plate of exchange and back card/back board as shown in Figure 1.Usually be inserted with the straight-through plate of a plurality of server board and a pair of exchange on the backboard, each server board links to each other by connector ZONE2 with the straight-through plate of above-mentioned a pair of exchange, convenient among Fig. 1 for example, only show a server board and the straight-through plate of exchange, the straight-through plate of exchange links to each other with back card/back board by connector ZOEN3, comprise on the back card/back board with the ATCA platform in the consistent network interface of server board quantity.The service signal that produces in the South Bridge chip on the server board transfers to the straight-through plate of exchange by connector ZONE2, transfers to corresponding network interface on the back card/back board by the straight-through plate of exchange by connector ZONE3 again.
The inventor finds that in the research process to prior art the straight-through plate of server board in the ATCA platform and exchange exchanges between straight-through plate and the back card/back board by ZONE3 connector transmitting business signal by ZONE2 connector transmitting business signal.And the network interface that server board is gone out by the straight-through plate of exchange is when being connected by netting twine with other network port, because the number of channels in the above-mentioned connector is limited, only can transmitting business signal, and can't transmit LED (the Light Emitting Diode that is used to represent the network interface connection status, light-emitting diode) signal, that is to say, the network interface connection status LED signal of server board can't transfer to the straight-through plate of exchange by the ZONE2 connector, therefore make the user can't by with back card/back board that the straight-through plate of exchange is connected on network interface obtain the connection status of server board, make troubles to user's use.
Summary of the invention
The purpose of the embodiment of the invention is to provide method for transmitting signals, system, network port indicator display system and veneer, so that the connection status of veneer can show the availability of raising system on the network interface of correspondence.
For realizing the purpose of the embodiment of the invention, the embodiment of the invention provides following technical scheme:
A kind of method for transmitting signals comprises:
Server board is gathered the connection status signal of each veneer;
Backboard administration module SMM plate gathers described connection status signal, and the described signal that gathers is transferred to the straight-through plate of exchange;
The straight-through plate of described exchange will describedly gather signal by bus transfer extremely with the corresponding network interface of described each veneer.
A kind of signal transmission system comprises:
Server board is used to gather the connection status signal of each veneer;
Backboard administration module SMM plate is used to gather described connection status signal, and the described signal that gathers is transferred to the straight-through plate of exchange;
The straight-through plate of exchange, be used for described gather signal by bus transfer to the corresponding network interface of described each veneer.
A kind of network port indicator display system, comprise: backboard and back card/back board, the server board and the straight-through plate of exchange that comprise backboard administration module SMM plate on the described backboard and link to each other with described backboard administration module SMM plate by bus, the straight-through plate of described exchange links to each other with described back card/back board, it is characterized in that
Described server board is used to gather the connection status signal and described connection status signal is transferred to backboard administration module SMM plate;
Described backboard administration module SMM plate is used to gather the connection status signal of described server board, and the described signal that gathers is transferred to the straight-through plate of exchange;
Plate is led directly in described exchange, is used for the described signal that gathers is arrived described back card/back board by bus transfer;
Described back card/back board is used for showing according to described each connection status signal controlling network port indicator corresponding with each server board that gathers signal.
Plate is led directly in a kind of exchange, and the straight-through plate of described exchange links to each other with backboard administration module SMM plate by bus, and links to each other with back card/back board, and the straight-through plate of described exchange comprises: receiving element, converting unit and transmission unit,
Described receiving element, be used to receive backboard administration module SMM plate by the IPMB passage send gather after the connection status signal, and with described connection status signal by the A/D bus transfer to described converting unit;
Described converting unit is used for gathering the signal that conversion of signals is an I2C bus transfer form with described;
Described transmission unit is used for by the described signal of I2C bus transfer to back card/back board.
A kind of back card/back board, described back card/back board links to each other with the straight-through plate of exchange, and described back card/back board comprises: resolution unit, control unit and network port indicator unit,
Described resolution unit is used to resolve the signal that gathers that the plate transmission is led directly in exchange;
Described control unit is used for the connection status signal controlling network port indicator unit by each server board of correspondence that parses;
Described network port indicator unit is used for showing according to the control of described connection status signal.
The technical scheme that is provided by the above embodiment of the invention as seen, pass through to gather the connection status signal of each veneer in the embodiment of the invention, gather described connection status signal then, and with described gather signal by bus transfer to the corresponding network interface of described each veneer.Use the embodiment of the invention, realized the long-range demonstration of server board connection status making the user can obtain the connection status of server board in real time, improved the availability of system by the management channels in the ATCA platform.
Description of drawings
Fig. 1 is the structural representation of ACTA platform;
Fig. 2 is the first embodiment flow chart of method for transmitting signals of the present invention;
Fig. 3 is the second embodiment flow chart of method for transmitting signals of the present invention;
Fig. 4 is the first embodiment block diagram of signal transmission system of the present invention;
Fig. 5 is the second embodiment block diagram of signal transmission system of the present invention;
Fig. 6 is the first embodiment block diagram of network port indicator display system of the present invention;
Fig. 7 is the second embodiment block diagram of network port indicator display system of the present invention;
Fig. 8 is the application schematic diagram of network port indicator display system of the present invention;
Fig. 9 is the embodiment block diagram of a kind of veneer of the present invention;
Figure 10 is the embodiment block diagram of the another kind of veneer of the present invention.
Embodiment
The embodiment of the invention provides method for transmitting signals, system, network port indicator display system and veneer, by gathering the connection status signal of each veneer, gathers described connection status signal,
In order to make those skilled in the art person understand the technical scheme that the embodiment of the invention provides better, the technical scheme that the embodiment of the invention provides is described in further detail below in conjunction with the drawings and specific embodiments.
The first embodiment flow process of method for transmitting signals of the present invention is as shown in Figure 2:
Step 201: the connection status signal of gathering each veneer.
Wherein, can obtain the connection status signal of each veneer by inquiry mode, also can receive the connection status signal that each veneer reports by interrupt mode according to Preset Time.
Wherein, the connection status signal comprises and is electrically connected status signal and service connected state signal.
Step 202: gather the connection status signal, and the signal after will gathering by bus transfer to the network interface corresponding with each veneer.
Concrete, the connection status signal after gathering can transmit by A/D bus, I2C bus, resolves the described connection status signal that gathers then, and the connection status signal of described each veneer of correspondence that parses is transferred to corresponding network interface.
The second embodiment flow process of method for transmitting signals of the present invention as shown in Figure 3, this embodiment illustrates the veneer connection status signal of inquiry and is transferred to the detailed process of corresponding network interface:
Step 301: the time interval of inquiry connection status signal on default each veneer.
Step 302: judge whether to arrive the default time interval, if then execution in step 303; Otherwise, return step 302.
Step 303: the connection status signal of inquiring about each veneer.
Wherein, the connection status signal comprises and is electrically connected status signal and service connected state signal, and the display lamp color that is electrically connected the status signal correspondence usually is for green, and the display lamp color of service connected state signal correspondence be a redness.
Step 304: the connection status signal to each veneer of inquiring identifies respectively.
The connection status signal is carried out the header that label manner is similar to message carry out label manner, effect is in order to distinguish the connection status signal of different veneers, to show so that this connection status signal can accurately be controlled the indicator light of this veneer correspondence.
Step 305: gather after the connection status signal after will identifying is packed.
Step 306: the signal of the conversion of signals after will gathering for transmitting by I2C bus transfer form.
The realization principle of I2C bus is when carrying out information interaction between two veneers, and the mirror registers of two veneers adopts the mode of real-time update to guarantee the consistency of register value, wherein preserves the connection status signal value that obtains in real time in the register; Two veneers are mainly finished the function that sends the connection status signal and receive the connection status signal on business, mainly finish the functions such as parallel commentaries on classics serial, transformation from serial to parallel and bus arbitration of connection status signal in the control.
Step 307: resolve this and gather signal, and the connection status signal of each veneer of correspondence that will parse transfers to corresponding network interface.
Step 308: the network port indicator according to each veneer correspondence of connection status signal controlling shows, finishes current flow process.
Corresponding with the embodiment of method for transmitting signals of the present invention, the present invention also provides the embodiment of signal transmission system.
The first embodiment block diagram of signal transmission system of the present invention as shown in Figure 4, this system comprises: collecting unit 410, gather unit 420 and transmission unit 430.
Wherein, collecting unit 410 is used to gather the connection status signal of each veneer; Gather unit 420 and be used to gather described connection status signal; Transmission unit 430 be used for described gather signal by bus transfer to the corresponding network interface of described each veneer.
The second embodiment block diagram of signal transmission system of the present invention as shown in Figure 5, this system comprises: collecting unit 510 is used to gather the connection status signal of each veneer; Gather unit 520 and be used to gather described connection status signal; Transmission unit 530 be used for described gather signal by bus transfer to the corresponding network interface of described each veneer.
Wherein, collecting unit 510 can comprise request signal unit 511, is used for inquiring about according to Preset Time the connection status signal of each veneer; And/or received signal unit 512, be used to receive the connection status signal that each veneer reports;
Wherein, gather unit 520 and comprise id signal unit 521, be used for the connection status signal of each veneer is identified respectively; Packetized signals unit 522 is used for the connection status signal after the described sign is packed.
Wherein, transmission unit 530 comprises format transformation unit 531, is used for the described signal of conversion of signals for transmitting by I2C bus transfer form that gather; Analytic signal unit 532 is used to resolve the signal that gathers through 531 conversions of described format transformation unit; Transmission signals unit 533, the connection status signal that is used for each veneer of correspondence that described analytic signal unit 532 is parsed transfers to corresponding network interface.
Corresponding with the embodiment of method for transmitting signals of the present invention and system, the present invention also provides the embodiment of veneer.
Corresponding with the embodiment of method for transmitting signals of the present invention, system, the present invention also provides the embodiment of network port indicator display system.
The first embodiment block diagram of network port indicator display system of the present invention as shown in Figure 6, this system comprises: backboard 610 and back card/back board 620, be inserted with SMM plate 612 on the described backboard 610, reach the server board 1011 and the straight-through plate 613 of exchange that link to each other respectively by bus and described SMM plate 612, the straight-through plate 613 of described exchange links to each other with described back card/back board 620.Convenient for example, only show a block server plate and the straight-through plate of exchange among Fig. 6, and in the practical application, on backboard, can insert the straight-through plate of polylith server board and exchange.
Wherein, server board 611 is used for the connection status signal of acquisition server plate and described connection status signal is transferred to SMM plate 612.
The straight-through plate 613 of exchange is used for the described signal that gathers is arrived described back card/back board 620 by bus transfer;
Back card/back board 620 is used for showing according to described each connection status signal controlling that gathers signal and each server board 611 corresponding network interface status indicator lamps.
The second embodiment block diagram of network port indicator display system of the present invention as shown in Figure 7, this system comprises: backboard 710 and back card/back board 720, be inserted with SMM plate 712 on the described backboard 710, reach the server board 711 and the straight-through plate 713 of exchange that link to each other respectively by bus and described SMM plate 712, the straight-through plate 713 of described exchange links to each other with described back card/back board 720.
Wherein, server board 711 comprises: collecting unit 7111 and transmission unit 7112.Described collecting unit 7111 is used for (the Peripheral Component InterconnectionExpress by PCIE, the high-speed peripheral component interconnection) bus is gathered the connection status of described server board 711, and passes through the described connection status signal of I2C bus transfer to described transmission unit 7112; Described transmission unit 7112 is used for by IPMB (Intelligent platform managementbus, Intelligent Platform Management Bus) passage described connection status signal being transferred to described SMM plate 712.
Wherein, described SMM plate 712 comprises and gathers unit 7121 and transmission unit 7122.Describedly gather the connection status signal that unit 7121 is used to gather each server board 711 that receives by the IPMB passage; Described transmission unit 7122 is used for the connection status signal after described gathering is led directly to plate 713 by IPMB channel transfer to described exchange.
Wherein, the straight-through plate 713 of exchange comprises receiving element 7131, converting unit 7132 and transmission unit 7133.Described receiving element 7131 be used to receive described SMM plate 712 by the IPMB passage send gather after the connection status signal, and with described connection status signal by A/D (Analog/Digital, analog/digital) bus transfer to described converting unit 7132; Described converting unit 7132 is used for gathering the signal that conversion of signals is an I2C bus transfer form with described; Described transmission unit 7133 is used for by the described signal of I2C bus transfer to described back card/back board 720.
Wherein, back card/back board 720 comprises: resolution unit 721, control unit 722 and the network port indicator unit 723 corresponding respectively with described server board.Described resolution unit 721 is used to resolve the signal that gathers of straight-through plate 713 transmission of described exchange; Described control unit 722 is used for the described network port indicator of connection status signal controlling by each server board 711 of correspondence that parses; Described network port indicator unit 723 is used for showing according to the control of described connection status signal.
The detailed applications schematic diagram that shows in conjunction with a kind of network port indicator of the invention described above embodiment as shown in Figure 8.Therefore be inserted with 12 block server plates on the backboard slot in the network port indicator display system shown in Fig. 8, comprised on back card/back board and 12 block server plates network interface one to one, each network interface place has the indicator light of display server plate connection status.This indicator light can be indicated two kinds of connection status, can be provided with when server board to be electrically connected when finishing, and this indicator light shows green, connects when finishing when server board is professional, and this indicator light shows red.
South Bridge chip on each block server plate is by PCIE bus inquiry network interface chip, obtain the state that is electrically connected and the service connected state of this server board, and report BMC (Base Board Management Controller, single board management controller) module by the I2C bus.Usually in order not take the performance of South Bridge chip, adopt the mode of active inquiry, inquire about reporting at set intervals.The BMC module is transmitted the SMM plate by the IPMB passage with the connection status signal.
The SMM plate collects that each server board reports is electrically connected status signal and service connected state signal, connection status signal to each server board adopts the mode of similar header to identify, and the connection status signal of each server board after will identifying packs and gathers, and the signal after gathering is by the BMC module of IPMB channel transfer to the straight-through plate of exchange.
Signal after the BMC module of the straight-through plate of exchange will gather is transferred to logic chip by the A/D bus mode, conversion of signals after logic chip gathers this is the signal that can utilize the I2C bus to transmit, and and the logic chip of back card/back board between carry out information interaction by the I2C bus form.The realization principle of I2C bus is that the back card/back board logic chip is mirrored to register in the logic chip of the straight-through plate of exchange, the mirror registers of two logic chips adopts the mode of real-time update to guarantee the consistency of register value, wherein preserves the connection status signal value that obtains in real time in the register; Two logic chips adopt two lines to communicate by letter, and mainly finish the function that sends the connection status signal and receive the connection status signal on the business, mainly finish the functions such as parallel commentaries on classics serial, transformation from serial to parallel and bus arbitration of connection status signal in the control.
The signal that gathers that logic chip on the back card/back board will receive is resolved, and according to the connection status signal of each server board of sign acquisition, the indicator light of controlling corresponding network interface according to the indication of connection status signal shows.
Need to prove, in the application scheme that above-mentioned network port indicator shows,, plug netting twine from server board and show to the network port indicator of correspondence and may have certain delay because the software and hardware that relates in the transmission channel of whole connection status signal is more.But from whole structure, network port indicator can correctly convey to the user with the connection status of server board, thereby has improved the availability of system, and above-mentioned delay can improve by software mode.
Corresponding with the embodiment of network port indicator display system of the present invention, the present invention also provides the embodiment of veneer.
The embodiment block diagram of a kind of veneer of the present invention as shown in Figure 9, this veneer is applied to the network port indicator system, mainly as the straight-through plate of exchange, with the transmission of SMM plate gather signal by bus transfer to back card/back board.This veneer comprises: receiving element 910, converting unit 920 and transmission unit 930.
Wherein, receiving element 910 be used to receive the SMM plate by the IPMB passage send gather after the connection status signal, and with described connection status signal by the A/D bus transfer to described converting unit; Converting unit 920 is used for gathering the signal that conversion of signals is an I2C bus transfer form with described; Transmission unit 930 is used for by the described signal of I2C bus transfer to back card/back board.
The embodiment block diagram of the another kind of veneer of the present invention as shown in figure 10, this veneer is applied to the network port indicator system, mainly as back card/back board, show according to described each connection status signal controlling network port indicator corresponding that gathers in the signal with each server board.This veneer comprises: resolution unit 1010, control unit 1020 and network port indicator unit 1030.
Wherein, described resolution unit 1010 is used to resolve the signal that gathers of the straight-through plate transmission of exchange; Control unit 1020 is used for the connection status signal controlling network port indicator by each server board of correspondence that parses; Network port indicator unit 1030 is used for showing according to the control of described connection status signal.
Description by the embodiment of the invention as can be known, the embodiment of the invention has realized the long-range demonstration of server board connection status making the user can obtain the connection status of server board in real time by the management channels in the ATCA platform, has improved the availability of system; And carry out the mutual of connection status signal by the I2C bus form, overcome because connector passage quantity is few the mutual restriction that produces of a plurality of connection status signals.
One of ordinary skill in the art will appreciate that all or part of step that realizes in the foregoing description method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program comprises the steps: to gather the connection status signal of each veneer when carrying out; Gather described connection status signal, and with described gather signal by bus transfer to the corresponding network interface of described each veneer.Described storage medium, as: ROM/RAM, magnetic disc, CD etc.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (16)
1. a method for transmitting signals is characterized in that, comprising:
Server board is gathered the connection status signal of each veneer;
Backboard administration module SMM plate gathers described connection status signal, and the described signal that gathers is transferred to the straight-through plate of exchange;
The straight-through plate of described exchange will describedly gather signal by bus transfer extremely with the corresponding network interface of described each veneer.
2. method according to claim 1 is characterized in that, the connection status signal of described each veneer of collection comprises:
Obtain the connection status signal of each veneer by inquiry mode according to Preset Time; Or receive the connection status signal that each veneer reports by interrupt mode;
Described connection status signal comprises: be electrically connected status signal and service connected state signal.
3. method according to claim 1 is characterized in that, the described connection status signal that gathers comprises:
Connection status signal to each veneer identifies respectively;
Connection status signal after the described sign is packed.
4. method according to claim 1 is characterized in that, the described signal that will gather comprises by bus transfer to the network interface corresponding with each veneer:
With the described signal of conversion of signals that gather for transmitting by I2C bus transfer form;
Resolve the signal that gathers after the described conversion, and the connection status signal of described each veneer of correspondence that parses is transferred to corresponding network interface.
5. method according to claim 1 is characterized in that, described will gather signal by bus transfer to the network interface corresponding with described each veneer, also comprise: the indicator light according to the described network interface of described connection status signal controlling shows.
6. a signal transmission system is characterized in that, comprising:
Server board is used to gather the connection status signal of each veneer;
Backboard administration module SMM plate is used to gather described connection status signal, and the described signal that gathers is transferred to the straight-through plate of exchange;
The straight-through plate of exchange, be used for described gather signal by bus transfer to the corresponding network interface of described each veneer.
7. system according to claim 6 is characterized in that, described server board comprises:
The request signal unit is used for inquiring about according to Preset Time the connection status signal of each veneer; And/or
The received signal unit is used to receive the connection status signal that each veneer reports.
8. system according to claim 6 is characterized in that, described backboard administration module SMM plate comprises:
The id signal unit is used for the connection status signal of each veneer is identified respectively;
The packetized signals unit is used for the connection status signal after the described sign is packed.
9. system according to claim 6 is characterized in that, the straight-through plate of described exchange comprises:
The format transformation unit is used for the described signal of conversion of signals for transmitting by I2C bus transfer form that gather;
The analytic signal unit is used to resolve the signal that gathers through described format transformation cell translation;
The transmission signals unit, the connection status signal that is used for each veneer of correspondence that described analytic signal unit resolves is gone out transfers to corresponding network interface.
10. network port indicator display system, comprise: backboard and back card/back board, the server board and the straight-through plate of exchange that comprise backboard administration module SMM plate on the described backboard and link to each other with described backboard administration module SMM plate by bus, the straight-through plate of described exchange links to each other with described back card/back board, it is characterized in that
Described server board is used to gather the connection status signal and described connection status signal is transferred to backboard administration module SMM plate;
Described backboard administration module SMM plate is used to gather the connection status signal of described server board, and the described signal that gathers is transferred to the straight-through plate of exchange;
Plate is led directly in described exchange, is used for the described signal that gathers is arrived described back card/back board by bus transfer;
Described back card/back board is used for showing according to described each connection status signal controlling network port indicator corresponding with each server board that gathers signal.
11. display system according to claim 10 is characterized in that, described server board comprises: collecting unit and transmission unit,
Described collecting unit is used for gathering by the PCIE bus connection status of described server board, and passes through the described connection status signal of I2C bus transfer to described transmission unit;
Described transmission unit is used for by the IPMB passage described connection status signal being transferred to described backboard administration module SMM plate.
12. display system according to claim 10 is characterized in that, described backboard administration module SMM plate comprises: gather unit and transmission unit,
The described unit that gathers is used to gather the connection status signal of each veneer that receives by the IPMB passage;
Described transmission unit is used for the connection status signal after described gathering is led directly to plate by IPMB channel transfer to described exchange.
13. display system according to claim 10 is characterized in that, the straight-through plate of described exchange comprises: receiving element, converting unit and transmission unit,
Described receiving element, be used to receive described backboard administration module SMM plate by the IPMB passage send gather after the connection status signal, and with described connection status signal by the A/D bus transfer to described converting unit;
Described converting unit is used for gathering the signal that conversion of signals is an I2C bus transfer form with described;
Described transmission unit is used for by gathering signal to described back card/back board after the conversion of the described converting unit of I2C bus transfer.
14. display system according to claim 10 is characterized in that, described back card/back board comprises: resolution unit, control unit and the network port indicator unit corresponding respectively with described server board,
Described resolution unit is used to resolve the signal that gathers that the plate transmission is led directly in described exchange;
Described control unit is used for the described network port indicator of the connection status signal controlling unit by each server board of correspondence that parses;
Described network port indicator unit is used for showing according to the control of described connection status signal.
15. the straight-through plate of exchange is characterized in that the straight-through plate of described exchange links to each other with backboard administration module SMM plate by bus, and links to each other with back card/back board, the straight-through plate of described exchange comprises: receiving element, converting unit and transmission unit,
Described receiving element, be used to receive backboard administration module SMM plate by the IPMB passage send gather after the connection status signal, and with described connection status signal by the A/D bus transfer to described converting unit;
Described converting unit is used for gathering the signal that conversion of signals is an I2C bus transfer form with described;
Described transmission unit is used for by the described signal of I2C bus transfer to back card/back board.
16. a back card/back board is characterized in that, described back card/back board links to each other with the straight-through plate of exchange, and described back card/back board comprises: resolution unit, control unit and network port indicator unit,
Described resolution unit is used to resolve the signal that gathers that the plate transmission is led directly in exchange;
Described control unit is used for the connection status signal controlling network port indicator unit by each server board of correspondence that parses;
Described network port indicator unit is used for showing according to the control of described connection status signal.
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| CN2008100969490A CN101287047B (en) | 2008-05-12 | 2008-05-12 | Signal transmission method, system, display system and single board for interface indicating lamp |
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| CN2008100969490A CN101287047B (en) | 2008-05-12 | 2008-05-12 | Signal transmission method, system, display system and single board for interface indicating lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101442687B (en) * | 2008-12-25 | 2011-06-15 | 北京佳讯飞鸿电气股份有限公司 | Circuit for indicating veneer status |
| CN102573195A (en) * | 2010-12-31 | 2012-07-11 | 北京大唐高鸿数据网络技术有限公司 | Centralized display system of indicator lamps |
| CN107255950B (en) * | 2017-07-14 | 2019-05-14 | 中科院成都信息技术股份有限公司 | A kind of device that network interface delay is connected |
| CN108770120B (en) * | 2018-05-25 | 2021-03-23 | 上海乘讯信息科技有限公司 | Intelligent channel state lamp |
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| US6947410B1 (en) * | 1999-11-16 | 2005-09-20 | Cisco Technology, Inc. | System and method for communicating data packets using a backplane switch |
| CN2671289Y (en) * | 2003-12-02 | 2005-01-12 | 华为技术有限公司 | Mono-plate and double surface inserting plate connected therewith |
| CN1779475A (en) * | 2004-11-22 | 2006-05-31 | 华为技术有限公司 | Connection fault inspection between plates and socket structure forsingle plate and rear plate |
| CN2845326Y (en) * | 2005-11-14 | 2006-12-06 | 华为技术有限公司 | ATCA backboard and exchange monolithic connected therewith and system |
| CN1983987A (en) * | 2006-05-12 | 2007-06-20 | 华为技术有限公司 | Monitor of rear card board in intelligent-platform management interface system |
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| CN101287047A (en) | 2008-10-15 |
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