CN105703943A - Device for switching communication lines - Google Patents
Device for switching communication lines Download PDFInfo
- Publication number
- CN105703943A CN105703943A CN201511032472.6A CN201511032472A CN105703943A CN 105703943 A CN105703943 A CN 105703943A CN 201511032472 A CN201511032472 A CN 201511032472A CN 105703943 A CN105703943 A CN 105703943A
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- China
- Prior art keywords
- card
- communication
- bus
- control
- schema control
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
Abstract
The invention provides a device for switching communication lines. The device includes a front panel, a backboard and a rear panel arranged in sequence; on the front panel, a plurality of communication cards that realize a communication function and mode control cards used for controlling switching between the plurality of communication cards are connected to the backboard; on the rear panel, interface cards used for leading out output signals of the communication cards are connected to the backboard; and a communication control bus is integrated on the backboard and is used for transmitting signals between the communication cards and the mode control cards. The switching device enables the communication cards to be mutually independent and not to influence one another, thus maintenance of a single card when a fault of the single card occurs is realized, and repair of a whole device is not needed, thereby improving work efficiency.
Description
Technical field
The present invention relates to communication technical field, be specifically related to the switching device of a kind of communication line。
Background technology
Flourish recently as communication technology, communication technology has more and more been applied in various field。For every field, communication line unimpeded be stably to ensure that this field can the important leverage of normal operation。
The asynchronous line communication of numerous areas it is frequently necessary to constantly switch between a plurality of communication line; but in existing switching device; the switching output port of a plurality of communication line is all disposed within same pcb board; once there be the switching output port of a wherein communication line to break down; whole switching device be accomplished by shut down and whole reprocess; not only reduce work efficiency, and when a port or a communication line go wrong, the use of complete machine will be affected。
Summary of the invention
The technical problem to be solved in the present invention is: how to provide a kind of communication line switching device being easily maintained。
For realizing above-mentioned goal of the invention, the invention provides the switching device of a kind of communication line, including: front panel, backboard and the rear board set gradually；
Several are realized the communication card of communication function and being used for and control the Schema control card of switching between several communication cards described and be connected to described backboard by described front panel；
Described rear board, is connected to described backboard by the interface card being used for drawing described communication card output signal；
Described backboard is integrated with communications control bus, for transmitting signal between described communication card and described Schema control card。
Preferably, described communications control bus includes: connect the high-speed link transfer bus of described Schema control card and described communication card, for supporting the transmission of high speed signal between described Schema control card and described communication card。
Preferably, described communications control bus includes the synchronised clock bus connecting described Schema control card and described communication card,
Described Schema control card provides synchronizing clock signals, transmits described synchronizing clock signals by described synchronised clock bus to several communication cards described, it is ensured that the synchronicity of several communication card clocks described。
Preferably, described communications control bus includes the System Management Bus connecting described Schema control card and described communication card, for supporting the described Schema control card transmission control signal to described communication card。
Preferably, described System Management Bus includes concurrent management bus, serial management bus,
Wherein,
Described concurrent management bus is connected with described Schema control card by parallel interface, adopts the mode of parallel transmission to export, to described communication card, the described control signal that described Schema control card sends；
Described serial management bus is connected with described Schema control card by serial line interface, adopts the mode of serial transmission to export, to described communication card, the described control signal that described Schema control card sends。
Preferably, described serial management bus is low speed I2C serial management bus。
Preferably, described communications control bus also includes power supply and management bus,
Described power supply and management bus, be connected with described Schema control card and described communication card respectively by the power panel being used for providing electric energy。
Preferably, several are represented the communication card of communication line and being used for by highly dense adapter and control the Schema control card of switching between several communication cards described and be connected with described backboard by described front panel；
The interface card drawing described communication card output interface is connected with described backboard by described rear board by highly dense adapter。
Preferably, the quantity of described Schema control card is two pieces, adopts the mode of the two-node cluster hot backup of main frame-standby host to control the switching of several communication cards described。
Preferably, described backboard is also integrated with active and standby dedicated bus, described active and standby dedicated bus and two pieces of described Schema control cards and is connected, for transmitting the signal between two pieces of described Schema control cards。
The switching device of communication line provided by the invention, the mode that front panel inserts communication card rear board insertion corresponding interface card is adopted to be connected with each communication line, and control the switching between each communication line by communications control bus integrated on backboard, make separate between each communication card being independent of each other, achieve the maintenance of single deck tape-recorder fault single deck tape-recorder to reprocess without complete machine, improve work efficiency。
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit those of ordinary skill in the art be will be clear from understanding。Accompanying drawing is only for illustrating the purpose of preferred implementation, and is not considered as limitation of the present invention。And in whole accompanying drawing, it is denoted by the same reference numerals identical parts。In the accompanying drawings:
Fig. 1 is the switching device cross section structure schematic diagram of communication line provided by the invention；
Fig. 2 is the front-panel structure schematic diagram of switching device provided by the invention；
Fig. 3 is communication card provided by the invention, Schema control card and power card arrangement schematic diagram；
Fig. 4 is the rear panel structure schematic diagram of switching device provided by the invention；
Fig. 5 is daughter card unit structural representation provided by the invention；
Fig. 6 is core bus logical schematic provided by the invention；
Fig. 7 is the active and standby exchange signal instruction schematic diagram of two-mode field card provided by the invention；
Fig. 8 is communication card provided by the invention and Schema control card interaction logic schematic diagram。
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail。Following example are used for illustrating the present invention, but are not limited to the scope of the present invention。
The invention provides the switching device of a kind of communication line, including the front panel set gradually, backboard and rear board；Several are realized the communication card of communication function and being used for and control the Schema control card of switching between several communication cards and be connected to backboard by front panel；Rear board, is connected to backboard by the interface card being used for drawing communication card output signal；Backboard is integrated with communications control bus, for transmitting signal between communication card and Schema control card。
The switching device of communication line provided by the invention, the mode that front panel inserts communication card rear board insertion corresponding interface card is adopted to be connected with each communication line, and control the switching between each communication line by communications control bus integrated on backboard, make separate between each communication card being independent of each other, achieve the maintenance of single deck tape-recorder fault single deck tape-recorder to reprocess without complete machine, improve work efficiency。
The basic structure of the switching device of communication line provided by the invention is illustrated, including the front panel 1 set gradually, backboard 2 and rear board 3 referring to Fig. 1, Fig. 1。As in figure 2 it is shown, front panel 1 is provided with several communication cards 11。Wherein, communication card is to affect the use of complete machine for solving the fault of uniline, and every circuit is designed as separate 16 communication cards 11 being independent of each other, and wherein single communication card 11 can the signal communication of complete independently single line。Additionally, as in figure 2 it is shown, be additionally provided with on front panel 1 for controlling the Schema control card 12 of switching between several communication cards 11, the arrangement mode of communication card 11 and Schema control card 12 is as shown in Figure 3。As shown in Figure 4, rear board 3 be provided with corresponding with communication card 11, for drawing the interface card 31 of communication card 11 output interface。Communication card 11 and Schema control card 12 are connected by front panel 1 with backboard 2, and correspondingly, extraction interface card 31 is connected by rear board 3 with backboard 2。Specifically, Fig. 5 illustrates the connected mode of one of them daughter card unit in device, and front panel 1 can pass through highly dense adapter 4 and communication card 11 or Schema control card 12 is connected with backboard 2；Rear board 3 can pass through highly dense adapter 4 and is connected with backboard 2 by the interface card 31 drawing communication card 11 output interface。The setting of highly dense adapter 3 makes communication card be connected with corresponding interface card, it is achieved that the front and back card plugging structure of whole device。
In order to support that the signal between communication card 11 and Schema control card 12 transmits, being also integrated with communications control bus on backboard 2, the logical schematic of communications control bus is as shown in Figure 6。
Wherein, in order to make backboard support the transmission of high speed signal, communications control bus preferably includes high-speed link transfer bus。As it is shown in figure 5, high-speed link transfer bus connection mode controls card 12 and communication card 11, it is possible to support the transmission of high speed signal between Schema control card and communication card, backboard is made to meet the designing requirement supporting high-speed transfer。
Preferably, for the synchronicity between each board in holding means inside, communications control bus can also include connection mode and control the synchronised clock bus of card 12 and communication card 11。Wherein, synchronizing clock signals and synchronization code stream for controlling communication card 11 internal clocking are driven by Schema control card 12, and transmit synchronizing clock signals by synchronised clock bus to several communication cards 11, ensure the synchronicity of all communication card 11 clocks, add the stability of whole system。
In whole switching device, the manager of system is Schema control plate 12, and Schema control plate 12 is responsible for communication card 11 being operated and safeguarding。Therefore communications control bus also includes the System Management Bus of the support Schema control card transmission control signal to communication card。Wherein, System Management Bus includes concurrent management bus, serial management bus。Concurrent management bus is connected with Schema control card 12 by parallel interface, adopts the mode of parallel transmission to control the control signal of card 12 transmission to communication card 11 output mode；Serial management bus is connected with Schema control card 12 by serial line interface, adopts the mode of serial transmission to control the control signal of card 12 transmission to communication card 11 output mode。Preferably, serial management bus is low speed I2C serial management bus。Low speed I2C serial management bus is the very important bus that other board (communication card 11) is operated safeguarding by Schema control card 12, especially for the board that serial communication can not arrive, low speed I2C serial management bus is uniquely to manage bus。Low speed I2C serial management bus is optimized by the design of system, and reduces Single Point of Faliure and the use of unstable device as far as possible。
In addition, in order to give the electric energy providing signal transmission necessary, communications control bus also includes power supply and management bus, as it is shown in figure 5, the power panel 13 (having shown that in Fig. 1) being used for providing electric energy is connected by power supply and management bus respectively with Schema control card and communication card。Preferably, the quantity of power panel 13 is two pieces, and one piece is main board, and another money is standby plate, the arranging of active and standby two block power supply plates can be effectively prevented from the generation of the situation causing device to operate because of power panel fault, and the good operation for device provides sound assurance。
Except the mode that the design adopting two block power supply plates is active and standby, it is preferable that the quantity of Schema control card 12 is also two pieces, and the communication card unification on main panel 1 is controlled by two Schema control cards。Correspondingly, backboard is also integrated with active and standby dedicated bus, active and standby dedicated bus and two pieces of Schema control cards and is connected, for transmitting the signal between two pieces of Schema control cards。Preferably, in order to the simplified mode controls the output signal of card, two pieces of Schema control cards adopt the mode of " line with " to provide clock signal and control signal。
Similarly, in two pieces of Schema control cards, one of them Schema control card is main control card, and another is standby card。As it is shown in fig. 7, carry out Hot Spare by masterslave switchover signal between main control card and standby card, wherein, masterslave switchover signal can be divided into switching control signal and switch data exchange signal, and the implication that each active and standby control signal specifically represents is referring to table 1。Wherein, the data signal of masterslave switchover adopts a pair FE cause for gossip existing, for the timed backup of data。
Table 1 masterslave switchover signal implication explanation
| SWAP_SELF_FLAG | The activestandby state instruction of this plate |
| SWAP_SELF_IND | The upstate instruction of this plate |
| SWAP_SELF_PD | The state in place instruction of this plate |
| SWAP_SELF_CLK | The clock status instruction of this plate |
| SWAP_SELF_RST | The reset state instruction of this plate |
| SWAP_SELF_CLK_USE | The clock Buffer either on or off signal of this plate |
| SWAP_RST_OPP1_IND | Reset and plate is indicated |
| SWAP_OPP_FLAG | The activestandby state of plate is indicated |
| SWAP_OPP_IND | The upstate of plate is indicated |
| SWAP_OPP_PD | The state in place of plate is indicated |
| SWAP_OPP_CLK | The clock status of plate is indicated |
| SWAP_OPP_RST | The reset state of plate is indicated |
| SWAP_OPP_CLK_USE | Clock Buffer either on or off signal to plate |
| SWAP_RST_OPP0_IND | Reset and plate is indicated |
In prior art, every equipment only one of which controls card, if this control card breaks down, entire machine just cannot use, and has a strong impact on work efficiency。In switching device provided by the invention, Schema control card adopts the mode of the two-node cluster hot backup of main frame-standby host to control several communication cards and switches over, when a Schema control card breaks down wherein, the Schema control card of another normal operating conditions can switch to main control card at once, and holding means runs well。In addition, it is independent between each card of switching device provided by the invention, while the Schema control card of normal operating conditions controls device as main control card, the Schema control card broken down can be dismantled and keeped in repair, well reinstall afterwards in maintenance, revert to two-node cluster hot backup state, do not affect the normal operation of switching device, it is achieved that the seamless link of the maintenance of Schema control card failure and normal operation。Therefore, in switching device provided by the invention, the interaction logic connection diagram of communication card 11 and two pieces of Schema control cards 12 is as shown in Figure 8。Two pieces of Schema control cards 12 control communication card 11 by communications control bus integrated on backboard, it is achieved that freely switching between communication line。
In sum, the switching device of communication line provided by the invention, the mode that front panel inserts communication card rear board insertion corresponding interface card is adopted to be connected with each communication line, and control the switching between each communication line by communications control bus integrated on backboard, make separate between each communication card being independent of each other, achieve the maintenance of single deck tape-recorder fault single deck tape-recorder to reprocess without complete machine, improve work efficiency。
Embodiment of above is merely to illustrate the present invention; and it is not limitation of the present invention; those of ordinary skill about technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes fall within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims。
Claims (10)
1. the switching device of a communication line, it is characterised in that include the front panel, backboard and the rear board that set gradually；
Several are realized the communication card of communication function and being used for and control the Schema control card of switching between several communication cards described and be connected to described backboard by described front panel；
Described rear board, is connected to described backboard by the interface card being used for drawing described communication card output signal；
Described backboard is integrated with communications control bus, for transmitting signal between described communication card and described Schema control card。
2. switching device as claimed in claim 1, it is characterized in that, described communications control bus includes: connect the high-speed link transfer bus of described Schema control card and described communication card, for supporting the transmission of high speed signal between described Schema control card and described communication card。
3. switching device as claimed in claim 1, it is characterised in that described communications control bus includes the synchronised clock bus connecting described Schema control card and described communication card,
Described Schema control card provides synchronizing clock signals, transmits described synchronizing clock signals by described synchronised clock bus to several communication cards described, it is ensured that the synchronicity of several communication card clocks described。
4. switching device as claimed in claim 1, it is characterised in that described communications control bus includes the System Management Bus connecting described Schema control card and described communication card, is used for supporting that described Schema control card sends control signal to described communication card。
5. switching device as claimed in claim 4, it is characterised in that described System Management Bus includes concurrent management bus, serial management bus,
Wherein,
Described concurrent management bus is connected with described Schema control card by parallel interface, adopts the mode of parallel transmission to export, to described communication card, the described control signal that described Schema control card sends；
Described serial management bus is connected with described Schema control card by serial line interface, adopts the mode of serial transmission to export, to described communication card, the described control signal that described Schema control card sends。
6. switching device as claimed in claim 5, it is characterised in that described serial management bus is low speed I2C serial management bus。
7. switching device as claimed in claim 1, it is characterised in that described communications control bus also includes power supply and management bus, and described switching device also includes the power panel for providing electric energy,
Described power supply and management bus, be connected with described Schema control card and described communication card respectively by described power panel。
8. switching device as claimed in claim 1, it is characterised in that
Several are represented the communication card of communication line and being used for by highly dense adapter and control the Schema control card of switching between several communication cards described and be connected with described backboard by described front panel；
The interface card drawing described communication card output interface is connected with described backboard by described rear board by highly dense adapter。
9. the switching device as described in claim 1-8 any one, it is characterised in that the quantity of described Schema control card is two pieces, adopts the mode of the two-node cluster hot backup of main frame-standby host to control the switching of several communication cards described。
10. switching device as claimed in claim 9, it is characterised in that be also integrated with active and standby dedicated bus, described active and standby dedicated bus and two pieces of described Schema control cards in described backboard and be connected, for transmitting the signal between two pieces of described Schema control cards。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032472.6A CN105703943A (en) | 2015-12-31 | 2015-12-31 | Device for switching communication lines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032472.6A CN105703943A (en) | 2015-12-31 | 2015-12-31 | Device for switching communication lines |
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| CN105703943A true CN105703943A (en) | 2016-06-22 |
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| CN201511032472.6A Pending CN105703943A (en) | 2015-12-31 | 2015-12-31 | Device for switching communication lines |
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| CN201846350U (en) * | 2010-11-01 | 2011-05-25 | 山东超越数控电子有限公司 | Multifunctional back plate based on CPCI (Compact Peripheral Component Interconnect) and CPCIE (Compact Peripheral Component Interconnect Express) bus |
| CN102223296A (en) * | 2011-05-30 | 2011-10-19 | 南京贝伦思网络科技有限公司 | Unified computing system |
| CN202711245U (en) * | 2011-08-23 | 2013-01-30 | 北京彩讯科技股份有限公司 | Signal switching device based on peripheral component interconnect express (PCI-E) bus |
| CN203086495U (en) * | 2012-11-28 | 2013-07-24 | 南京丰泰通信技术股份有限公司 | PCM equipment having interface testing function |
| CN104192153A (en) * | 2014-08-01 | 2014-12-10 | 深圳市通业科技发展有限公司 | Rail train controller |
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2015
- 2015-12-31 CN CN201511032472.6A patent/CN105703943A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080250181A1 (en) * | 2005-12-01 | 2008-10-09 | Minqiu Li | Server |
| CN101145836A (en) * | 2006-09-12 | 2008-03-19 | 北京正有网络通信技术股份有限公司 | A multi-service integrated access device |
| CN101751368A (en) * | 2009-12-30 | 2010-06-23 | 中兴通讯股份有限公司 | Single-board communication method, device and system |
| CN201846350U (en) * | 2010-11-01 | 2011-05-25 | 山东超越数控电子有限公司 | Multifunctional back plate based on CPCI (Compact Peripheral Component Interconnect) and CPCIE (Compact Peripheral Component Interconnect Express) bus |
| CN102223296A (en) * | 2011-05-30 | 2011-10-19 | 南京贝伦思网络科技有限公司 | Unified computing system |
| CN202711245U (en) * | 2011-08-23 | 2013-01-30 | 北京彩讯科技股份有限公司 | Signal switching device based on peripheral component interconnect express (PCI-E) bus |
| CN203086495U (en) * | 2012-11-28 | 2013-07-24 | 南京丰泰通信技术股份有限公司 | PCM equipment having interface testing function |
| CN104192153A (en) * | 2014-08-01 | 2014-12-10 | 深圳市通业科技发展有限公司 | Rail train controller |
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Application publication date: 20160622 |