CN1722933A - Backboard wiring method - Google Patents
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- CN1722933A CN1722933A CN 200410104174 CN200410104174A CN1722933A CN 1722933 A CN1722933 A CN 1722933A CN 200410104174 CN200410104174 CN 200410104174 CN 200410104174 A CN200410104174 A CN 200410104174A CN 1722933 A CN1722933 A CN 1722933A
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Abstract
This invention discloses a back board wiring method, which comprises the following steps: a) setting the reasonable allocation of the bonder; b) connecting the signal lines according to the allocation. By said method, it can wire the multiply channel high-velocity signals evenly, and can realize wire without holes, so it increases the quality of transmitting high-velocity signal of the back board, and the decrease the layer number of the back board.
Description
Technical field
The present invention relates to the circuit board wiring technology, outstanding reference and a kind of backboard wiring method.
Background technology
In conventional network equipment (carrying out the equipment of data communication as the router on the IP network, Ethernet switch and gateway etc.), miscellaneous service interface card, control card and the switching card etc. of a network element all need to use backboard to carry out signal and are connected, therefore, the wiring method of backboard PCB directly influences the performance and the cost of backboard, further influences the performance of the whole network equipment.
Existing a kind of backboard wiring method is the example explanation with 8 interface draw-in groove positions and two systems that control the draw-in groove positions as shown in Figure 1.Supposing has 48 links on each interface card, wherein 24 links are connected with the A control board, and other 24 links are connected with the B control board; Each control card has 192 links.The mode of operation of this network equipment generally is divided into load balancing pattern and masterslave switchover pattern.Two control cards are worked simultaneously during the load balancing pattern, and two control cards backup each other during masterslave switchover.Wherein, be the communication link of a control board above, be the link of a communication control panel below, still the wiring from whole back plate is unbalanced, following link has the place of intersection.This wiring method makes the backboard number of plies be difficult to control, also makes the signal quality on top be better than the bottom signal quality, the effect difference of working when causing two control boards to be respectively master control borad.For two control boards, the link-attached of same position is different interface boards in addition, when system works, the software that moves on two control boards had different requirements like this, for the software development of system has increased burden.
Another kind of backboard wiring method as shown in Figure 2, the link of two control board same positions connects identical interface board.Though this implementation method has solved the different needs of problems of software, improved all wiring lines density simultaneously, increased the number of plies of backboard.And the wiring density height at diagonal angle, another diagonal angle does not have line substantially, and such backboard is easy to distortion.
More than backboard wiring method in two examples be widely used in the back board structure of low-density, low rate, so the holding wire in the backboard wiring intersects, the backboard number of plies increases all little to the influence of systematic function.But, along with improving constantly that the network equipment is required, the signal bandwidth of backboard transmission more and more higher (holding wire is up to 6.25G, or 10G for the Serdes (serial parallel conversion) on the present backboard).In order to make backboard have more high bandwidth, just need on backboard, realize the high-density wiring of two-forty holding wire, but along with the increase of HW High Way quantity, the backboard number of plies can increase also, cause the many places HW High Way to intersect and occur a plurality of via holes.And in high speed transmission of signals, via hole is intersected and occurred to HW High Way, and the increase of the number of plies of backboard all can influence the performance of backboard transmission signals.
Summary of the invention
The problem that the present invention solves provides a kind of backboard wiring method, can not adapt to the wiring of high speed signal to solve prior art dorsulum wiring method, and the unbalanced shortcoming that connects up.
For addressing the above problem, the invention provides a kind of backboard wiring method, may further comprise the steps:
A, determine the distribution of connector:
A1, the first control draw-in groove, second control draw-in groove and the interface draw-in groove are set respectively on backboard, the described first control draw-in groove is used to connect first control card and backboard, and the described first control draw-in groove comprises at least two connectors;
The described second control draw-in groove is used to connect second control card and backboard, and the described second control draw-in groove comprises at least two connectors; Described interface draw-in groove is used for connecting interface card and backboard, and described interface draw-in groove comprises at least two connectors;
Described first control draw-in groove and the described second control draw-in groove are positioned in the middle of the backboard, and described interface draw-in groove symmetry is positioned at the first control draw-in groove and the second control draw-in groove both sides;
A2, the connector with the described first control draw-in groove, the connector of the described second control draw-in groove and the connector of described interface draw-in groove are divided into laterally zygomorphic two parts;
A3, determine the described first control draw-in groove, second control draw-in groove and the interface draw-in groove, and the spacing of the connector of the connector of the connector of the described first control draw-in groove, the second control draw-in groove and interface draw-in groove;
A4, each connector of the first control draw-in groove and the second control draw-in groove is divided into the first sub-connector and the second sub-connector, and each connector of interface draw-in groove is divided into the first sub-connector and the second sub-connector;
B, according to the layout of connector, realize the connection of holding wire:
First or the second sub-connector by each first control card connector and each second control card connector realizes that with the first or second sub-connector of the corresponding left and right sides interface card connector holding wire is connected.
The first control card number of connectors described in the steps A 1 is the integral multiple n of interface card quantity; Number of connectors is the integral multiple n of interface card quantity on described second control card; Described interface card number of connectors is the integral multiple m of first control card or the second control card quantity, and n equates with m.
In the described steps A 3, according to the holding wire quantity of each connector carrying, determine distance between the distance between the described interface card connector and the first control card connector, described interface card connector and the described second control card connector or the distance between the described interface card connector.
The holding wire quantity that described connector can carry is more than or equal to the 1/n of the high speed signal quantity between an interface card and control card.
In each interface card connector, increase the sub-connector of control signal in the middle of two parts connector up and down, increase by two sub-connectors of control signal in the middle of two parts connector up and down in the first control card connector and the second control card connector, control signal connects by the sub-connector of described control signal.
Also comprise the one-board power supply connector in described interface card connector and the active and standby connector for substrate, be set to up and down two parts, link to each other with the system stand-by power source with the system main power source respectively.
In the described steps A 4, the first and second sub-connectors are respectively sub-connector and following sub-connector,
The first control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the last sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected in proper order from left to right; With the following sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected of order from right to left;
The second control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the last sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with two control draw-in grooves on the left of the last sub-connector of interface draw-in groove lower middle portion connector to be linked in sequence from left to right; With the following sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the last sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides to be linked in sequence from right to left.
In the described steps A 4, the first and second sub-connectors are respectively sub-connector and following sub-connector,
The first control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the following sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the last sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected in proper order from left to right; With the last sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the last sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected in proper order from right to left;
The second control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the following sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides to be linked in sequence from left to right; With the last sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of two interface draw-in groove lower middle portion connectors of controlling the draw-in groove right sides to be linked in sequence from right to left.
In the described steps A 4, the first and second sub-connectors are respectively left sub-connector and right sub-connector,
The first control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected of order from left to right; With the right sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected of order from right to left;
The second control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides to be linked in sequence from left to right; With the right sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides to be linked in sequence from right to left.
In the described steps A 4, the first and second sub-connectors are respectively left sub-connector and right sub-connector,
The first control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected of order from left to right; With the right sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected of order from right to left;
The second control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides to be linked in sequence from left to right; With the right sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides to be linked in sequence from right to left.
Compared with prior art, the present invention has the following advantages:
Utilize backboard wiring method of the present invention, realize the equilibrium wiring of multipath high-speed signal, solved multipath high-speed signal dense transfers interference problem preferably, and can realize not having via hole and connect up, therefore, improve the quality of backboard transmit high-speed signals, and reduced the number of plies of backboard.Because regularity is stronger, when guaranteeing number of plies optimum, also have the characteristics of easy operating and inspection according to the backboard of the inventive method wiring.
Description of drawings
The basic principle flow chart of Fig. 1 backboard wiring of the present invention;
Fig. 2 is a kind of existing backboard wiring method;
Fig. 3 is another kind of existing backboard wiring method;
A kind of backboard wiring method that Fig. 4 is the present invention under 4 interface cards and two control card situations;
A kind of backboard wiring method that Fig. 5 is the present invention under 4 interface cards and two control card situations;
A kind of backboard wiring method that Fig. 6 is the present invention under 4 interface cards and two control card situations;
A kind of backboard wiring method that Fig. 7 is the present invention under 4 interface cards and two control card situations;
A kind of backboard wiring method that Fig. 8 is the present invention under 8 interface cards and two control card situations;
The another kind of backboard wiring method that Fig. 9 is the present invention under 8 interface cards and two control card situations;
Figure 10 is the connector location mode behind the increase main power supply among the present invention.
Embodiment
Basic principle of the present invention comprises that the distribution of determining connector is connected two steps with the realization holding wire,
Concrete steps such as Fig. 3 comprise:
Step s301 is provided with the first control draw-in groove, second control draw-in groove and the interface draw-in groove respectively on backboard, the described first control draw-in groove is used to connect first control card and backboard, and the described first control draw-in groove comprises at least two connectors;
The described second control draw-in groove is used to connect second control card and backboard, and the described second control draw-in groove comprises at least two connectors; Described interface draw-in groove is used for connecting interface card and backboard, and described interface draw-in groove comprises at least two connectors;
Described first control draw-in groove and the described second control draw-in groove are positioned in the middle of the backboard, and described interface draw-in groove symmetry is positioned at the first control draw-in groove and the second control draw-in groove both sides;
Number of connectors is the integral multiple n of interface draw-in groove quantity in the described first control draw-in groove; Number of connectors is the integral multiple n of interface card quantity on the described second control draw-in groove; Described interface card number of connectors is the integral multiple m of first control card or the second control draw-in groove quantity, and requires n=m.
Step s302 is divided into laterally zygomorphic two parts respectively with connector in the connector in the described first control draw-in groove, the described second control draw-in groove and the connector in the described interface draw-in groove;
Step s303 determines between the described first control draw-in groove, second control draw-in groove and the interface draw-in groove, and the distance between the connector of the connector of the connector of the described first control draw-in groove, the second control draw-in groove and interface draw-in groove; The number of signals that single connector can carry (a) is more than or equal to an interface draw-in groove and the 1/n that controls the number of signals (b) between draw-in groove, i.e. an a*n＞=b.
Step s304 the first control draw-in groove and second each connector of controlling draw-in groove are divided into the first sub-connector and the second sub-connector, and each connector of interface draw-in groove is divided into the first sub-connector and the second sub-connector;
Step s305, the first or second sub-connector of each first control card connector and each second control card connector links to each other with the first or second sub-connector of corresponding left and right sides interface card connector.Above-mentioned connection is meant that link connects, and comprises that data link connects or the control signal link connects, and each link can comprise many signal line.
Below to have 4 interface draw-in grooves and 2 wiring method explanation embodiments of the invention of controlling the backboard of draw-in grooves.
At first, central authorities on backboard are provided with the first control draw-in groove A, the second control draw-in groove B, the described first control draw-in groove A is used to connect first control card and backboard, the described second control draw-in groove B is used to connect second control card, and (the first control draw-in groove A is connected main controller with backboard, the second control draw-in groove B connects the backup control card, and in this example, main controller is in the left side, be equipped with control card on the right side, also can exchange) according to actual conditions.At the first control draw-in groove A and the second control draw-in groove B bilateral symmetry 4 interface draw-in grooves (0-3) are set, wherein interface draw-in groove 0 and 1 is in the first control draw-in groove left side, and interface draw-in groove 2 and 3 is on the second control draw-in groove right side.Number of connectors among the connector among the first control draw-in groove A and the second control draw-in groove B is 1 times of interface card quantity, promptly 4; Connector quantity in each interface draw-in groove is 1 times of control draw-in groove quantity, promptly 2.Connector among the first control draw-in groove A and the second control draw-in groove B is divided into two parts up and down respectively, wherein, and 2 of 2 on top and lower parts; 2 connectors in each interface draw-in groove also are divided into two parts up and down.Above-mentioned connector is mainly used in data link and connects, if control link or control signal are fewer, these signals are realized with unnecessary pin in the connector that connects data link, if control link or control signal are many, can in the middle of the connector of the first/the second control draw-in groove, add two control signal connectors, in the middle of the connector of each interface draw-in groove, add a control signal connector, be exclusively used in the control signal link and connect.
Then, determine the spacing of the connector of described first control card, second control card and interface card.In theory, what high speed data link distributed evacuates more, more little to the quality influence of high speed signal, but because the restriction of backboard size, can not be unrestrictedly to the high speed data link wiring, therefore, need find a suitable value, guarantee in limited space wiring, and do not influence signal quality.The method that adopts in the present embodiment is: the number of signals that single connector can carry (a) is more than or equal to an interface draw-in groove and a 1/n who controls the number of signals (b) between draw-in groove, because n=1, so a＞=b.
After the position of each groove and connector and spacing are reserved, carry out the backboard signal and connect.Wherein, a kind of backboard wiring method such as Fig. 4, for:
Each connector of the first control draw-in groove A and the second control draw-in groove B is divided into the first sub-connector and the second sub-connector, and each connector of interface draw-in groove is divided into the first sub-connector and the second sub-connector; The first and second sub-connectors are respectively sub-connector and following sub-connector:
The first control draw-in groove A middle and upper part is divided the last sub-connector of each connector divide the following sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom; The first control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the following sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; With the last sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order (0,1) respectively with the following sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side with order (0,1) connection from left to right; The following sub-connector of first each connector of control draw-in groove lower middle portion is connected with order (3,2) from right to left with the following sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side respectively with from top to bottom order (3,2);
The second control draw-in groove B middle and upper part is divided the last sub-connector of each connector divide the last sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom; The second control draw-in groove B middle and upper part is divided the following sub-connector of each connector divide the last sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; With the last sub-connector of second each connector of control draw-in groove B lower middle portion with from top to bottom order (0,1) respectively with the last sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side with (0,1) connection in proper order from left to right; With the following sub-connector of second each connector of control draw-in groove B lower middle portion with from top to bottom order (3,2) respectively with the last sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side with order (3,2) connection from right to left.
Another kind of in this example backboard wiring method such as Fig. 5, for:
Each connector of the first control draw-in groove A and the second control draw-in groove B is divided into the first sub-connector and the second sub-connector, and each connector of interface draw-in groove is divided into the first sub-connector and the second sub-connector; The first and second sub-connectors are respectively sub-connector and following sub-connector:
The first control draw-in groove A middle and upper part is divided the following sub-connector of each connector divide the last sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom; The first control draw-in groove A middle and upper part is divided the last sub-connector of each connector divide the last sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; With the following sub-connector of first each connector of control draw-in groove A lower middle portion with from top to bottom order (0,1) respectively with the last sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side with order (0,1) connection from left to right; With the last sub-connector of first each connector of control draw-in groove A lower middle portion with from top to bottom order (3,2) respectively with the last sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side with (3,2) connection in proper order from right to left;
The second control draw-in groove B middle and upper part is divided the following sub-connector of each connector divide the following sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom; The second control draw-in groove B middle and upper part is divided the last sub-connector of each connector divide the following sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; The following sub-connector of second each connector of control draw-in groove B lower middle portion is connected with order (0,1) from left to right with the following sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side respectively with from top to bottom order (0,1); With the last sub-connector of second each connector of control draw-in groove B lower middle portion with from top to bottom order (3,2) respectively with the following sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side with order (3,2) connection from right to left.
Another kind of in this example backboard wiring method such as Fig. 6, for:
The first and second sub-connectors are respectively left sub-connector and right sub-connector,
The first control draw-in groove A middle and upper part is divided the left sub-connector of each connector divide the right sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom; The first control draw-in groove A middle and upper part is divided the right sub-connector of each connector divide the left sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; The left sub-connector of first each connector of control draw-in groove A lower middle portion is connected with order (0,1) from left to right with the left sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side respectively with from top to bottom order (0,1); The right sub-connector of first each connector of control draw-in groove A lower middle portion is connected with order (3,2) from right to left with the right sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side respectively with from top to bottom order (3,2);
The second control draw-in groove B middle and upper part is divided the left sub-connector of each connector divide the left sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom; The second control draw-in groove B middle and upper part is divided the right sub-connector of each connector divide the right sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; The left sub-connector of second each connector of control draw-in groove B lower middle portion is connected with order (0,1) from left to right with the right sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side respectively with from top to bottom order (0,1); The right sub-connector of second each connector of control draw-in groove B lower middle portion is connected with order (3,2) from right to left with the left sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side respectively with from top to bottom order (3,2).
Another kind of in this example backboard wiring method such as Fig. 7, for:
The first and second sub-connectors are respectively left sub-connector and right sub-connector,
Divide the left sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom the left sub-connector of each connector of A top in the first control draw-in groove; The first control draw-in groove A middle and upper part is divided the right sub-connector of each connector divide the right sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; The left sub-connector of first each connector of control draw-in groove A lower middle portion is connected with order (0,1) from left to right with the right sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side respectively with from top to bottom order (0,1); The right sub-connector of first each connector of control draw-in groove A lower middle portion is connected with order (3,2) from right to left with the left sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side respectively with from top to bottom order (3,2);
The second control draw-in groove B middle and upper part is divided the left sub-connector of each connector divide the right sub-connector of connector with order (0,1) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,1) from top to bottom; The second control draw-in groove B middle and upper part is divided the right sub-connector of each connector divide the left sub-connector of connector with order (3,2) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (3,2) from top to bottom; The left sub-connector of second each connector of control draw-in groove B lower middle portion is connected with order (0,1) from left to right with the left sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side respectively with from top to bottom order (0,1); With the right sub-connector of second each connector of control draw-in groove B lower middle portion with connecting with order (3,2) from right to left with the right sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side respectively from top to bottom along (3,2) preface.
Below only listed the backboard wiring method of several comparative optimizations in this example, also had several different methods to select,, therefore, no longer described in detail because basic principle is identical.
Be example explanation another embodiment of the present invention with 8 interface cards and 2 control cards below.
At first, central authorities on backboard are provided with the first control draw-in groove A, the second control draw-in groove B, the described first control draw-in groove A is used to connect first control card and backboard, the described second control draw-in groove B is used to connect second control card, and (the first control draw-in groove A is connected main controller with backboard, the second control draw-in groove B connects the backup control card, and in this example, main controller is in the left side, be equipped with control card on the right side, also can exchange) according to actual conditions.At the first control draw-in groove A and the second control draw-in groove B bilateral symmetry 8 interface draw-in grooves (0-7) are set, wherein interface draw-in groove 0-3 is in the first control draw-in groove left side, and interface draw-in groove 4-7 is on the second control draw-in groove right side.Number of connectors among the connector among the first control draw-in groove A and the second control draw-in groove B is 1 times of interface card quantity, promptly 8; Connector quantity in each interface draw-in groove is 1 times of control draw-in groove quantity, promptly 2.Connector among the first control draw-in groove A and the second control draw-in groove B is divided into two parts up and down respectively, wherein, and 4 of 4 on top and lower parts; 2 connectors in each interface draw-in groove also are divided into two parts up and down.Above-mentioned connector is mainly used in data link and connects, if control link or control signal are fewer, these signals are realized with unnecessary pin in the connector that connects data link, if control link or control signal are many, can in the middle of the connector of the first/the second control draw-in groove, add two control signal connectors, in the middle of the connector of each interface draw-in groove, add a control signal connector, be exclusively used in the control signal link and connect.
Then, determine the spacing of the connector of described first control card, second control card and interface card.In theory, what high speed data link distributed evacuates more, more little to the quality influence of high speed signal, but because the restriction of backboard size, can not be unrestrictedly to the high speed data link wiring, therefore, need find a suitable value, guarantee in limited space wiring, and do not influence signal quality.The method that adopts in the present embodiment is: the number of signals that single connector can carry (a) is more than or equal to an interface draw-in groove and a 1/n who controls the number of signals (b) between draw-in groove, because n=1, so a＞=b.
After the position of each groove and connector and spacing are reserved, carry out the backboard signal and connect.Wherein, a kind of backboard wiring method such as Fig. 8, for:
Each connector of the first control draw-in groove A and the second control draw-in groove B is divided into the first sub-connector and the second sub-connector, and each connector of interface draw-in groove is divided into the first sub-connector and the second sub-connector; The first and second sub-connectors are respectively sub-connector and following sub-connector:
The first control draw-in groove A middle and upper part is divided the last sub-connector of each connector divide the following sub-connector of connector with order (0,3) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,3) from top to bottom; The first control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the following sub-connector of connector with order (7,4) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (7,4) from top to bottom; With the last sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order (0,3) respectively with the following sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side with order (0,3) connection from left to right; The following sub-connector of first each connector of control draw-in groove lower middle portion is connected with order (7,4) from right to left with the following sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side respectively with from top to bottom order (7,4);
The second control draw-in groove B middle and upper part is divided the last sub-connector of each connector divide the last sub-connector of connector with order (0,3) connection from left to right with the interface draw-in groove middle and upper part in the first control draw-in groove A left side respectively with order (0,3) from top to bottom; The second control draw-in groove B middle and upper part is divided the following sub-connector of each connector divide the last sub-connector of connector with order (7,4) connection from right to left with the interface draw-in groove middle and upper part on the second control draw-in groove B right side respectively with order (7,4) from top to bottom; With the last sub-connector of second each connector of control draw-in groove B lower middle portion with from top to bottom order (0,3) respectively with the last sub-connector of the interface draw-in groove lower middle portion connector in the first control draw-in groove A left side with (0,3) connection in proper order from left to right; With the following sub-connector of second each connector of control draw-in groove B lower middle portion with from top to bottom order (7,4) respectively with the last sub-connector of the interface draw-in groove lower middle portion connector on the second control draw-in groove B right side with order (7,4) connection from right to left.
When n=2, connector and signal distributions as shown in Figure 9:
Sub-number of connectors in the sub-connector in the first control card connector and the second control card connector is 1 times of quantity of interface card, promptly 16; Sub-number of connectors in the interface card connector is 2 times of quantity of control card, promptly 4.16 sub-connectors in the first control card connector and the second control card connector are divided into two parts, and wherein, 8 on top is used to be connected data link (generally all being high speed signal) with 8 of lower parts; 4 sub-connectors in each interface card connector are divided into two parts, wherein, above 2 be connected data link respectively with following 2.Last side-connector is two parts, connects two control boards respectively, and the connector of downside in like manner.In the present embodiment, every line is represented 12 data links.If meet the following conditions, the wiring of whole data link only needs one deck routing layer: 1, connector can one deck outlet; 2, the spacing between interface board and interface board can 24 data links of cloth; 3, the spacing of each intermodule of control board can 12 data links of cloth.This is a limit hypothesis, and system generally also has transmitting-receiving different layers, the requirement of connector, restriction of backboard size or the like.
The signal distributions of two control boards is on all four with respect to interface board, and systems soft ware is not had specific (special) requirements.
When n=2 or n greater than 2 the time, in like manner can get.
Another embodiment of the present invention such as Figure 10, the design of system at present generally all requires to use duplicate supply 101 and 102, is used for backup.Power connector distributes up and down in the present embodiment, increases by two power connectors 105,106 respectively in the first control draw-in groove, the second control draw-in groove and interface draw-in groove, is used to be respectively first control card, second control card and interface card power supply; Two system power supply connectors 103,104 are used to backboard that main power supply is provided, and have so just ensured fully contacting of bus plane and connector under the situation of a bus plane again saving.
In addition, the present invention is not limited to this.For in other network, for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, the method for employing also belongs to protection scope of the present invention.
Claims (10)
1, a kind of backboard wiring method is characterized in that, may further comprise the steps:
A, determine the distribution of connector:
A1, the first control draw-in groove, second control draw-in groove and the interface draw-in groove are set respectively on backboard, the described first control draw-in groove is used to connect first control card and backboard, and the described first control draw-in groove comprises at least two connectors;
The described second control draw-in groove is used to connect second control card and backboard, and the described second control draw-in groove comprises at least two connectors; Described interface draw-in groove is used for connecting interface card and backboard, and described interface draw-in groove comprises at least two connectors;
Described first control draw-in groove and the described second control draw-in groove are positioned in the middle of the backboard, and described interface draw-in groove symmetry is positioned at the first control draw-in groove and the second control draw-in groove both sides;
A2, the connector with the described first control draw-in groove, the connector of the described second control draw-in groove and the connector of described interface draw-in groove are divided into laterally zygomorphic two parts;
A3, determine the described first control draw-in groove, second control draw-in groove and the interface draw-in groove, and the spacing of the connector of the connector of the connector of the described first control draw-in groove, the second control draw-in groove and interface draw-in groove;
A4, each connector of the first control draw-in groove and the second control draw-in groove is divided into the first sub-connector and the second sub-connector, and each connector of interface draw-in groove is divided into the first sub-connector and the second sub-connector;
B, according to the layout of connector, realize the connection of holding wire:
First or the second sub-connector by each first control card connector and each second control card connector realizes that with the first or second sub-connector of the corresponding left and right sides interface card connector holding wire is connected.
2, backboard wiring method according to claim 1 is characterized in that the first control card number of connectors described in the steps A 1 is the integral multiple n of interface card quantity; Number of connectors is the integral multiple n of interface card quantity on described second control card; Described interface card number of connectors is the integral multiple m of first control card or the second control card quantity, and n equates with m.
3, as backboard wiring method as described in the claim 2, it is characterized in that, in the described steps A 3, according to the holding wire quantity of each connector carrying, determine distance between the distance between the described interface card connector and the first control card connector, described interface card connector and the described second control card connector or the distance between the described interface card connector.
As backboard wiring method as described in the claim 3, it is characterized in that 4, the holding wire quantity that described connector can carry is more than or equal to the l/n of the high speed signal quantity between an interface card and control card.
5, backboard wiring method according to claim 1, it is characterized in that, in each interface card connector, increase the sub-connector of control signal in the middle of two parts connector up and down, increase by two sub-connectors of control signal in the middle of two parts connector up and down in the first control card connector and the second control card connector, control signal connects by the sub-connector of described control signal.
6, backboard wiring method according to claim 1 is characterized in that, also comprises the one-board power supply connector in described interface card connector and the active and standby connector for substrate, is set to two parts up and down, links to each other with the system stand-by power source with the system main power source respectively.
7, backboard wiring method according to claim 1 is characterized in that, in the described steps A 4, the first and second sub-connectors are respectively sub-connector and sub-connector down,
The first control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the last sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected in proper order from left to right; With the following sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected of order from right to left;
The second control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the last sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with two control draw-in grooves on the left of the last sub-connector of interface draw-in groove lower middle portion connector to be linked in sequence from left to right; With the following sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the last sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides to be linked in sequence from right to left.
8, backboard wiring method according to claim 1 is characterized in that, in the described steps A 4, the first and second sub-connectors are respectively sub-connector and sub-connector down,
The first control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the last sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the following sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the last sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected in proper order from left to right; With the last sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the last sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected in proper order from right to left;
The second control draw-in groove middle and upper part is divided the following sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the last sub-connector of each connector divide the following sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the following sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides to be linked in sequence from left to right; With the last sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the following sub-connector of two interface draw-in groove lower middle portion connectors of controlling the draw-in groove right sides to be linked in sequence from right to left.
9, backboard wiring method according to claim 1 is characterized in that in the described steps A 4, the first and second sub-connectors are respectively left sub-connector and right sub-connector,
The first control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected of order from left to right; With the right sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected of order from right to left;
The second control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides to be linked in sequence from left to right; With the right sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides to be linked in sequence from right to left.
10, backboard wiring method according to claim 1 is characterized in that in the described steps A 4, the first and second sub-connectors are respectively left sub-connector and right sub-connector,
The first control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The first control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides with being connected of order from left to right; With the right sub-connector of first each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides with being connected of order from right to left;
The second control draw-in groove middle and upper part is divided the left sub-connector of each connector divide the right sub-connector of connector to be linked in sequence from left to right with the interface draw-in groove middle and upper part in two control draw-in groove left sides respectively with order from top to bottom; The second control draw-in groove middle and upper part is divided the right sub-connector of each connector divide the left sub-connector of connector to be linked in sequence from right to left with the interface draw-in groove middle and upper part on two control draw-in groove right sides respectively with order from top to bottom; With the left sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the left sub-connector of the interface draw-in groove lower middle portion connector in two control draw-in grooves left sides to be linked in sequence from left to right; With the right sub-connector of second each connector of control draw-in groove lower middle portion with from top to bottom order respectively with the right sub-connector of the interface draw-in groove lower middle portion connector on two control draw-in groove right sides to be linked in sequence from right to left.
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| CNB2004101041749A CN100479632C (en) | 2004-12-30 | 2004-12-30 | Backboard wiring method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052136B (en) * | 2007-04-06 | 2010-04-07 | 杭州华三通信技术有限公司 | Back board and realizing method |
| CN101159559B (en) * | 2007-09-06 | 2011-06-29 | 杭州华三通信技术有限公司 | Rear panel and implementing method thereof |
| CN101841734B (en) * | 2009-03-16 | 2012-11-07 | 华为技术有限公司 | Back plate and back plate communication system |
| CN102053650B (en) * | 2009-11-06 | 2013-09-18 | 无锡江南计算技术研究所 | Back panel system and wiring method of back panel signal wire |
| CN108027795A (en) * | 2015-09-22 | 2018-05-11 | Ovh公司 | Modularization bottom plate |
-
2004
- 2004-12-30 CN CNB2004101041749A patent/CN100479632C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052136B (en) * | 2007-04-06 | 2010-04-07 | 杭州华三通信技术有限公司 | Back board and realizing method |
| CN101159559B (en) * | 2007-09-06 | 2011-06-29 | 杭州华三通信技术有限公司 | Rear panel and implementing method thereof |
| CN101841734B (en) * | 2009-03-16 | 2012-11-07 | 华为技术有限公司 | Back plate and back plate communication system |
| US8570764B2 (en) | 2009-03-16 | 2013-10-29 | Huawei Technologies Co., Ltd. | Backplane and backplane communication system |
| CN102053650B (en) * | 2009-11-06 | 2013-09-18 | 无锡江南计算技术研究所 | Back panel system and wiring method of back panel signal wire |
| CN108027795A (en) * | 2015-09-22 | 2018-05-11 | Ovh公司 | Modularization bottom plate |
| CN108027795B (en) * | 2015-09-22 | 2021-11-09 | Ovh公司 | Modular backplane |
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