CN102496821B - Reinforcing connecting device based on PXI backboard bridge - Google Patents
Reinforcing connecting device based on PXI backboard bridge Download PDFInfo
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- CN102496821B CN102496821B CN 201110392301 CN201110392301A CN102496821B CN 102496821 B CN102496821 B CN 102496821B CN 201110392301 CN201110392301 CN 201110392301 CN 201110392301 A CN201110392301 A CN 201110392301A CN 102496821 B CN102496821 B CN 102496821B
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Abstract
The invention discloses a reinforcing connecting device based on a PXI backboard bridge to achieve a purpose of raising reliability of a PXI backboard. The reinforcing connecting device comprises the PXI backboard and PCI-PCI bridge plates. Each PCI-PCI bridge plate carries out bridge connection between two adjacent bridge sections on the PXI backboard in a parallel lamination connection mode. Four channels C1, C2, C3, and C4 are continuously selected from the two adjacent bridge sections. A PXI connector P1 and a PXI connector P2 are installed at slots of C1 and C4. A four-core pin at a back side of the PXI backboard is connected with a four-core socket to form a four-core connector. A six-core pin is connected with a six-core socket to form a six-core connector. A female joint J1 at a right side of the PCI-PCI bridge plate is cooperated with P1, and J2 is cooperated with P2. A through hole of a positioning hole of the PCI-PCI bridge plate is inserted with studs. Through two nuts on each stud, the PCI-PCI bridge plate is fixed at the back side of the PXI backboard.
Description
Technical field
The present invention relates to the instrument bus technology, belong to automatic thermometrically system field, relate to PXI backboard motherboard and separate when designing with the PCI-PCI bridge plate and carry out interconnected method, be specifically related to a kind of device that reinforces the connection based on PXI backboard bridger.
Background technology
The PXI standard has clear and definite regulation to the used connector in each groove position in the PXI backboard, distance between the adjacent slot position and the maximum device quantity of each PXI bridge section support.When the PXI backboard surpasses 8 groove positions, need to increase the PCI-PCI bridge, realize the section of striding communication.
A kind of design is that PXI backboard motherboard and PCI-PCI bridge are designed in the same circuit board, to reach high reliability, but because the size between the adjacent slot position is limited, this mode must increase the vertical height of PXI backboard motherboard, so just increased the design difficulty in PXI case radiation air channel, also increase the risk of circuit-board laying-out wiring, finally reduced the compatibility of the physical dimension of Series P XI cabinet.
Another kind of design is that PXI backboard motherboard and PCI-PCI bridge are separated design, realize laminated interconnect by a kind of long and narrow connector again, selected connector can be arranged between the adjacent PXI groove position, than above-mentioned design, though this method can not increase the vertical height of PXI backboard, but because connector can only encapsulate for Surface Mount, so just make that the whole anti-seismic performance of PXI backboard is not strong, also go wrong easily during this external coating prevention material, finally just reduced the reliability of PXI backboard.
Summary of the invention
In view of this, the invention provides a kind of device that reinforces the connection based on PXI backboard bridger, this device has structurally kept the compatibility of Series P XI cabinet, can reach the purpose of the reliability that improves the PXI backboard simultaneously.
The present invention adopts following technical scheme for achieving the above object:
A kind of device that reinforces the connection based on PXI backboard bridger comprises PXI backboard and PCI-PCI bridge plate; Wherein:
The PXI backboard is selected any one PXI backboard in 9～21 groove PXI backboards for use, and the length of PCI-PCI bridge plate * wide is: 93mm * 110mm.
The PXI backboard is divided by the bridge section, makes the groove number in each bridge section be less than or equal to 7; According to the bridge hop count of dividing, determine the number of the described bridge plate of PCI-PCI described in the device that reinforces the connection, the number of PCI-PCI bridge plate is that described bridge hop count subtracts 1; Each PCI-PCI bridge plate all is connected across between two adjacent bridge sections with the connected mode of parallel lamination.
The annexation of each PCI-PCI bridge plate and described PXI backboard is:
Choose 4 grooves continuously from adjacent two bridge sections, wherein, at least one groove is in last bridge section, and at least one groove is in the Hou Yiqiao section; 4 selected grooves are designated as C1, C2, C3, C4 successively, 1 PXI connector P1 and 1 PXI connector P2 are installed in the groove position of C1, P1 and P2 occupy the whole groove position of C1 jointly, P1 comprises the backboard extension pin of 1 P1 and the extension pin cover of 1 P1, and P2 comprises the backboard extension pin of 1 P2 and the extension pin cover of 1 P2; The backboard extension pin of described P1 and the backboard extension pin of P2 are passed the locational crimping of C1 hole from PXI backboard front, and correspondingly be fastened in the extension pin cover of the extension pin cover of the locational P1 of C1 at the PXI backboard back side and P2, similarly, be separately installed with other one group of PXI connector P1 and P2 on the C4 position of PXI backboard.
14 core contact pin is welded on the C2 at the PXI backboard back side and the gap between the C3, and 36 core connectors are welded on the C4 at the PXI backboard back side and the gap between the adjacent groove position of not choosing successively; Four jiaos at C1～C4 place rectangular area R arrange four location holes altogether, at the nut that all is equipped with on each location hole on 1 double-screw bolt and the double-screw bolt.
Be crimped with 4 females on the crimping bore region in PCI-PCI bridge plate front, comprise 2 J1 and 2 J2, J1 cooperates with P1, and J2 cooperates with P2, be welded with 14 core socket between two crimping bore regions in PCI-PCI bridge plate front, the secondary side in PCI-PCI bridge plate front welds 36 core sockets successively; Four jiaos of through holes that offer corresponding to described location hole of PCI-PCI bridge plate.
PCI-PCI bridge plate front is towards the described rectangular area R at the PXI backboard back side, and the extension pin in the extension pin cover of each J1 and a P1 is docked, and the extension pin in the extension pin cover of each J2 and a P2 is docked; Described 4 core contact pins are docked to 4 core sockets and constitute 14 core connector, described 6 core contact pins and be docked to respectively with 6 core sockets and constitute 36 core connectors, comprise the one 6 core connector, the 26 core connector and the 36 core connector; Screw in nut at double-screw bolt behind the through hole on the described double-screw bolt insertion PCI-PCI bridge plate, the PCI-PCI bridge plate is fixed on the back side of PXI backboard by two nuts on each double-screw bolt.
If described PXI backboard is divided into N bridge section, the PCI-PCI bridge plate of cross-over connection is n PCI-PCI bridge plate between n bridge section and n+1 the bridge section; Wherein, the n span is 1～N-1.
Connect in the following way for n PCI-PCI bridge plate:
(1) when n equals 1, from the 1st the bridge section of dividing, select first groove position as system's control flume, system's control flume connects 4 core connectors of the 1st PCI-PCI bridge plate by three copper lead-in wires of described PXI backboard inside, these three copper lead-in wires are used for one group of signal to be allocated of transmission, comprise clock signal clk, bus request signal REQ and arbitrating signals GNT.
When n was not equal to 1, described 4 core contact pins connected 6 core connectors of n-1 PCI-PCI bridge plate by PXI backboard internal copper lead-in wire, thereby obtain one group of signal to be allocated from 6 core connectors of n-1 PCI-PCI bridge plate.
(2) described 4 core sockets connect PCI-PCI bridge plate chip by the copper lead-in wire of the 1st PCI-PCI bridge plate inside, be used for described signal to be allocated is transferred to PCI-PCI bridge plate chip, this PCI-PCI bridge plate chip connects secondary side female J1 by the copper lead-in wire of PCI-PCI bridge plate inside, be used for described one group of signal to be allocated is assigned to this J1, PCI-PCI bridge plate chip also connects each 6 core socket by 18 copper lead-in wires simultaneously, be used for described one group of signal to be allocated is assigned as the identical signal to be allocated of m part, be assigned on 36 core connectors, m is less than or equal to 6.
When m is 6, described signal to be allocated is assigned as 6 parts, obtains REQ1～REQ6, GNT1～GNT6, CLK1～CLK6, and be assigned on 36 core connectors, be specially: distribute 6 signals at the one 6 core connector, comprise REQ1, GNT1, REQ2, GNT2, REQ3, GNT3; Distribute 6 signals at the 26 core connector, comprise REQ4, GNT4, CLK4, CLK3, CLK2, CLK1; Distribute 6 signals at the 36 core connector, comprise GNT 5, REQ 5, CLK5, GNT6, REQ6, CLK6.
(3) on the PXI backboard, the groove position C4 in n+1 bridge section obtains signal to be allocated on the J1 by flat P1, and the signal to be allocated of respectively organizing in the 6 core connectors is distributed to other groove positions except C4 in n+1 the bridge section by the copper lead-in wire respectively.
When n was not equal to 1,6 core connectors on n PCI-PCI bridge plate provided one group of signal to be allocated to n+1 PCI-PCI bridge plate.
Beneficial effect:
The invention provides a kind of device that reinforces the connection based on PXI backboard bridger, this device has following characteristics:
(1) PXI backboard motherboard and PCI-PCI bridge plate adopt the mode of parallel lamination, and connector under the situation of the vertical height that does not influence the PXI backboard, has reached the purpose that structurally keeps Series P XI cabinet compatibility across 4 PXI groove positions.
(2) with PCI common bus signal definition on 2 pairs of extension pin PXI connectors, special bus signals, as bus request signal, arbitrating signals and clock signal, do not take PXI connector pin, realize interconnectedly by extra minute hand connector, so just guaranteed the standardization of each groove position PXI backboard signal.PXI backboard motherboard and PCI-PCI bridge plate adopt the mode of parallel lamination, have so just guaranteed bus signals characteristic impedance requirement and interconnected reliability.In addition, PXI backboard motherboard and PCI-PCI bridge plate adopt fixed bolt and nut to carry out consolidation process, have so just guaranteed its resistance to shock, have finally reached the purpose that improves PXI backboard reliability.
Description of drawings
Fig. 1 is the device block diagram that reinforces the connection based on 18 groove PXI backboard bridgers;
Fig. 2 is the device schematic diagram that reinforces the connection based on 18 groove PXI backboard bridgers;
Fig. 3 is PCI-PCI bridge plate schematic diagram;
Fig. 4 (a) is 4 core connector schematic diagrames;
Fig. 4 (b) is 6 core connector schematic diagrames;
Fig. 5 is based on the device signal distributions schematic diagram that reinforces the connection of 18 groove PXI backboard bridgers;
Fig. 6 is based on the device signal distributions schematic diagram that reinforces the connection of 14 groove PXI backboard bridgers;
Wherein, 1-4 core connector, 2-the one 6 core connector, 3-the 26 core connector, 4-the 36 core connector, 5-18 groove PXI backboard, 6-PCI-PCI bridge plate, 7-female, 8-PCI-PCI bridge plate I chip.
Embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
A kind of device that reinforces the connection based on PXI backboard bridger comprises PXI backboard and PCI-PCI bridge plate 6; Wherein:
The PXI backboard is selected any one PXI backboard in 9～21 groove PXI backboards for use.
The PXI backboard is divided by the bridge section, makes the groove number in each bridge section be less than or equal to 7; According to the bridge hop count of dividing, determine the number of the described bridge plate of PCI-PCI described in the device 6 that reinforces the connection, the number of PCI-PCI bridge plate 6 is that described bridge hop count subtracts 1; Each PCI-PCI bridge plate 6 all is connected across between two adjacent bridge sections with the connected mode of parallel lamination.
Each PCI-PCI bridge plate 6 with the annexation of described PXI backboard is:
Choose 4 grooves continuously from adjacent two bridge sections, wherein, at least one groove is in last bridge section, and at least one groove is in the Hou Yiqiao section; 4 selected grooves are designated as C1, C2, C3, C4 successively, 1 PXI connector P1 and 1 PXI connector P2 are installed in the groove position of C1, P1 and P2 occupy the whole groove position of C1 jointly, P1 comprises the backboard extension pin of 1 P1 and the extension pin cover of 1 P1, and P2 comprises the backboard extension pin of 1 P2 and the extension pin cover of 1 P2; The backboard extension pin of described P1 and the backboard extension pin of P2 are passed the locational crimping of C1 hole from PXI backboard front, and correspondingly be fastened in the extension pin cover of the extension pin cover of the locational P1 of C1 at the PXI backboard back side and P2, similarly, be separately installed with other one group of PXI connector P1 and P2 on the C4 position of PXI backboard.
14 core contact pin is welded on the C2 at the PXI backboard back side and the gap between the C3, and 36 core connectors are welded on the C4 at the PXI backboard back side and the gap between the adjacent groove position of not choosing successively; Four jiaos at C1～C4 place rectangular area R arrange four location holes altogether, at the nut that all is equipped with on each location hole on 1 double-screw bolt and the double-screw bolt.
Be crimped with 4 females on the crimping bore region in PCI-PCI bridge plate 6 fronts, comprise 2 J1 and 2 J2, J1 cooperates with P1, J2 cooperates with P2, be welded with 14 core socket between two crimping bore regions in PCI-PCI bridge plate 6 fronts, the secondary side in PCI-PCI bridge plate 6 fronts welds 36 core sockets successively, this secondary side is positioned at the side in the described J1 that cooperates with C4, PCI-PCI bridge plate 6 zones, J2 place, this side between the adjacent slot position of C4 and C4 place bridge section, four jiaos of through holes that offer corresponding to described location hole of PCI-PCI bridge plate 6.
PCI-PCI bridge plate 6 fronts are towards the described rectangular area R at the PXI backboard back side, and the extension pin in the extension pin cover of each J1 and a P1 is docked, and the extension pin in the extension pin cover of each J2 and a P2 is docked; Described 4 core contact pins are docked to 4 core sockets and constitute 14 core connector, described 6 core contact pins and be docked to respectively with 6 core sockets and constitute 36 core connectors, comprise the one 6 core connector 2, the 26 core connector 3 and the 36 core connector 4; Screw in nut at double-screw bolt behind the through hole on the described double-screw bolt insertion PCI-PCI bridge plate 6, PCI-PCI bridge plate 6 is fixed on the back side of PXI backboard by two nuts on each double-screw bolt.
If described PXI backboard is divided into N bridge section, the PCI-PCI bridge plate 6 of cross-over connection is n PCI-PCI bridge plate 6 between n bridge section and n+1 the bridge section; Wherein, the n span is 1～N-1.
Connect in the following way for n PCI-PCI bridge plate 6:
(1) when n equals 1, from the 1st the bridge section of dividing, select first groove position as system's control flume, system's control flume connects 4 core connectors of the 1st PCI-PCI bridge plate 6 by three copper lead-in wires of described PXI backboard inside, these three copper lead-in wires are used for one group of signal to be allocated of transmission, comprise clock signal clk, bus request signal REQ and arbitrating signals GNT.
When n was not equal to 1, described 4 core contact pins connected 6 core connectors of n-1 PCI-PCI bridge plate 6 by PXI backboard internal copper lead-in wire, thereby obtain one group of signal to be allocated from 6 core connectors of n-1 PCI-PCI bridge plate 6.
(2) described 4 core sockets connect PCI-PCI bridge plate chip by the copper lead-in wire of the 1st PCI-PCI bridge plate 6 inside, be used for described signal to be allocated is transferred to PCI-PCI bridge plate chip, this PCI-PCI bridge plate chip connects secondary side female J1 by the copper lead-in wire of PCI-PCI bridge plate 6 inside, be used for described one group of signal to be allocated is assigned to this J1, PCI-PCI bridge plate chip also connects each 6 core socket by 18 copper lead-in wires simultaneously, be used for described one group of signal to be allocated is assigned as the identical signal to be allocated of m part, be assigned on 36 core connectors, m is less than or equal to 6.
When m is 6, described signal to be allocated is assigned as 6 parts, obtains REQ1～REQ6, GNT1～GNT6, CLK1～CLK6, and be assigned on 36 core connectors, be specially: distribute 6 signals at the one 6 core connector, comprise REQ1, GNT1, REQ2, GNT2, REQ3, GNT3; Distribute 6 signals at the 26 core connector, comprise REQ4, GNT4, CLK4, CLK3, CLK2, CLK1; Distribute 6 signals at the 36 core connector, comprise GNT 5, REQ 5, CLK5, GNT6, REQ6, CLK6.
(3) on the PXI backboard, the groove position C4 in n+1 bridge section obtains signal to be allocated on the J1 by P1, and the signal to be allocated of respectively organizing in the 6 core connectors is distributed to other groove positions except C4 in n+1 the bridge section by the copper lead-in wire respectively.
When n was not equal to 1,6 core connectors on n PCI-PCI bridge plate 6 provided one group of signal to be allocated to n+1 PCI-PCI bridge plate 6.
Embodiment is as follows:
Embodiment one:
In the present embodiment, be example with 18 groove PXI cabinet backboards, the process of Design of Reinforcement and installation is described.
Connector and the annex of table 1 18 grooves/14 groove PXI backboards
| Sequence number | Specification, model | Explanation | Manufacturer | Quantity | |
| 1 | 923197 | The backboard extension pin of PXI connector P1 | ERNI | 2 | |
| 2 | 923131 | The backboard extension pin of PXI connector P2 | ERNI | 2 | |
| 3 | 114436 | The extension pin cover of PXI | ERNI | 2 | |
| 4 | 114425 | The extension pin cover of PXI | ERNI | 2 | |
| 5 | 104702 | | ERNI | 2 | |
| 6 | 114113 | | ERNI | 2 | |
| 7 | MTMM-104-14-S-S-690 | 4 core contact pins, the 2mm spacing | SAMTEC | 1 | |
| 8 | SQT-104-03- |
4 core sockets, the 2mm spacing | SAMTEC | 1 | |
| 9 | MTMM-106-14-S-S-690 | 6 core contact pins, the 2mm spacing | SAMTEC | 3 | |
| 10 | SQT-106-03- |
6 core sockets, the 2mm spacing | SAMTEC | 3 | |
| 11 | |
4 | |||
| 12 | |
8 |
Fig. 1 shows the device block diagram that reinforces the connection based on 18 groove PXI backboard bridgers.This device that reinforces the connection comprises 1 18 groove PXI backboard 5 and 2 PCI-PCI bridge plates 6.Every PCI-PCI bridge plate 6 is connected related connector, female, contact pin, socket, double-screw bolt and nut with 18 groove PXI backboards 5, sees Table 1.
18 groove PXI backboards 5 are divided into 3 bridge sections: the Bridge 1 section is that 1～No. 6 groove, Bridge 2 section are that 7～No. 12 grooves, the 3rd bridge sections are 13～No. 18 grooves.
The process that reinforces the connection based on 18 groove PXI backboard bridgers is as follows:
(1) Fig. 2 shows the device schematic diagram that reinforces the connection based on 18 groove PXI backboard bridgers.
The length of this 18 groove PXI backboard 5 * wide is: 400mm * 129mm, 1 PXI connector P1 and 1 PXI connector P2 are installed in the position of No. 4 grooves on 18 groove PXI backboards 5, P1 comprises the backboard extension pin of 1 P1 and the extension pin cover of 1 P1, P2 comprises the backboard extension pin of 1 P2 and the extension pin cover of 1 P2, concrete installation process is: the backboard extension pin of 1 P1 of crimping and the backboard extension pin of 1 P2 on No. 4 groove positions in 18 groove PXI backboards, 5 fronts, correspondingly, in No. 4 groove positions at 18 groove PXI backboards, 5 back sides extension pin cover of 1 P1 and the extension pin cover of 1 P2 are installed.Same, on the position of No. 7 grooves on the 18 groove PXI backboards 5, No. 10 grooves, No. 13 grooves, carry out the installation of P1 and P2 respectively.
Weld 36 core contact pins successively in 1 the 4 core contact pin of space welding between No. 5 grooves at 18 groove PXI backboards, 5 back sides and No. 6 grooves, space between No. 7 grooves at the 18 groove PXI backboard back sides and No. 8 grooves, at 4 location holes in the zone (rectangular area R) at No. 7 groove place, No. 4 groove～4 double-screw bolts and 4 nuts are installed respectively.Similarly, 14 core contact pin of space welding between No. 11 grooves at the 18 groove PXI backboard back sides and No. 12 grooves, 36 core contact pins are welded in space between No. 13 grooves at the 18 groove PXI backboard back sides and No. 14 grooves successively, at 4 location holes in the zone (rectangular area R) at No. 13 groove place, No. 10 groove～nut on 4 double-screw bolts and the double-screw bolt are installed respectively.
(2) Fig. 3 shows PCI-PCI bridge plate schematic diagram.
The length of every PCI-PCI bridge plate 6 * wide is: 93mm * 110mm, 4 females 7 of crimping correspondingly on the crimping bore region on every PCI-PCI bridge plate 6 fronts, comprise 2 J1 and 2 J2, and between two crimping bore regions in every PCI-PCI bridge plate 6 fronts the welding 14 core socket, this 4 core socket is corresponding to described 4 core contact pins, secondary side in every PCI-PCI bridge plate 6 fronts welds 36 core sockets successively, and this 6 core socket is corresponding to described 6 core contact pins.
(3) adopt the mode of parallel lamination to carry out interconnected with every PCI-PCI bridge plate 6 18 groove PXI backboards 5, the front that is about to every PCI-PCI bridge plate 6 is connected with the back side of 18 groove PXI backboards 5, correspondingly, P1 on No. 4 grooves at 18 groove PXI backboards, 5 back sides cooperates with J1, P2 cooperates with J2, P1 and J1 on No. 7 grooves at 18 groove PXI backboards, 5 back sides agrees with, P2 and J2 agree with, P1 on No. 10 grooves at 18 groove PXI backboards, 5 back sides cooperates with J1, P2 cooperates with J2, and the P1 on No. 13 grooves at 18 groove PXI backboards, 5 back sides cooperates with J1, P2 cooperates with J2.Described 4 core contact pins and 4 core sockets fit together and constitute 14 core connector 1, described 6 core contact pins and 6 core sockets fit together respectively and constitute 36 core connectors, being about to wherein a PCI-PCI bridge plate 6 is connected across between No. 4 grooves and No. 7 grooves, an other PCI-PCI bridge plate 6 is connected across between No. 10 grooves and No. 13 grooves, four jiaos of through holes that offer corresponding to described location hole of PCI-PCI bridge plate 6, behind the through hole on the described double-screw bolt insertion PCI-PCI bridge plate 6, screw in nut at double-screw bolt, like this by the back side of two nuts on each double-screw bolt with PCI-PCI bridge plate 6 stuck-at-s 8 groove PXI backboards 5, realize the fixing of 18 groove PXI backboards 5 and PCI-PCI bridge plate 6, thereby obtain one based on the device that reinforces the connection of 18 groove PXI backboard bridgers.
This device that reinforces the connection can be realized distinctive signal, the section of striding that comprises clock signal clk, bus request signal REQ and arbitrating signals GNT is distributed, for example, adopt this device that reinforces the connection to realize system's control flume (No. 1 groove) to 7～No. 12 grooves in the Bridge 2 section, the distribution of signal of 13～No. 18 grooves in the 3rd bridge section, detailed process is as follows:
No. 1 groove passes through the copper lead-in wire of 18 groove PXI backboards, 5 inside respectively with one group of signal, comprise that CLK, REQ and GNT distribute to the P1 connector of 2～No. 6 grooves, these connectors transmit described one group of signal to corresponding groove position, simultaneously, No. 1 groove three copper lead-in wires by 18 groove PXI backboards, 5 inside are distributed to the 4 core connectors 1 of PCI-PCI bridge plate I with described one group of signal, shown in Fig. 4 (a).4 core connectors 1 should be organized signal by the copper lead-in wire of PCI-PCI bridge plate I inside and be dispensed to PCI-PCI bridge plate I chip.As shown in Figure 5, PCI-PCI bridge plate I chip carries out two kinds of situations distribution by the copper lead-in wire of PCI-PCI bridge plate I inside with described one group of signal:
1. PCI-PCI bridge plate I chip is distributed to the PCI bridge secondary side female J1 of PCI-PCI bridge plate I with described one group of signal, and J1 distributes described one group of signal to give No. 7 grooves by the P1 of No. 7 grooves.
2. simultaneously, PCI-PCI bridge plate I chip is distributed to the one 6 core connector 2, the 26 core connector 3 and the 36 core connector 4 respectively with described one group of signal, is specially:
Distribute 6 signals at the one 6 core connector 2, comprise REQ1, GNT1, REQ2, GNT2, REQ3, GNT3; Distribute 6 signals at the 26 core connector 3, comprise REQ4, GNT4, CLK4, CLK3, CLK2, CLK1; Distribute 6 signals at the 36 core connector 4, comprise GNT 5, REQ5, CLK5, GNT6, REQ6, CLK6.Shown in Fig. 4 (b).
Described CLK, REQ, GNT signal are divided into 6 the tunnel behind 36 core connectors: CLK1, REQ1, GNT1; CLK2, REQ2, GNT2; ... CLK6, REQ6, GNT6; And correspondingly the lead-in wire of the copper by 18 groove PXI backboards, 5 inside exports No. 8 grooves, No. 9 grooves, No. 10 grooves, No. 11 grooves, the P1 connector of No. 12 grooves, the 4 core connectors of PCI-PCI bridge plate II to.
Identical for the distribution principle of signal with described PCI-PCI bridge plate I, PCI-PCI bridge plate II chip goes between one group of signal by the copper of PCI-PCI bridge plate II inside, comprises that CLK6, REQ6, GNT6 carry out two kinds of situations and distribute:
1. PCI-PCI bridge plate II chip will be organized the PCI bridge secondary side female J1 that signal is distributed to PCI-PCI bridge plate II, and J1 distributes described one group of signal to give No. 13 grooves by the P1 of No. 13 grooves.
2. simultaneously, PCI-PCI bridge plate II chip should be organized signal and distribute to 36 core connectors respectively, these 36 core connectors should be organized signal and be divided into 6 the tunnel, and correspondingly the lead-in wire of the copper by 18 groove PXI backboards, 5 inside exports No. 14 grooves, No. 15 grooves, No. 16 grooves, No. 17 grooves, the P1 connector of No. 18 grooves, free end NC to.
By the different groove position of distribution corresponding signal to 18 groove PXI backboards, guaranteed the standardization of each groove position PXI backboard signal like this.
Embodiment two:
In the present embodiment, be example with 14 groove PXI cabinet backboards, the process of Design of Reinforcement and installation is described.
The 14 groove PXI backboard bridgers device that reinforces the connection comprises 1 14 groove PXI backboard and 1 PCI-PCI bridge plate 6.PCI-PCI bridge plate 6 is connected related connector, female, contact pin, socket, double-screw bolt and nut with 14 groove PXI backboards, sees Table 1.
14 groove PXI backboards are divided into 2 bridge sections: the Bridge 1 section is that 1～No. 7 groove, Bridge 2 section are 8～No. 14 grooves.
The process that reinforces the connection based on 14 groove PXI backboard bridgers is as follows:
(1) length of this 14 groove PXI backboard * wide is: 325mm * 129mm, 1 PXI connector P1 and 1 PXI connector P2 are installed in the position of No. 5 grooves on 14 groove PXI backboards, P1 comprises the backboard extension pin of 1 P1 and the extension pin cover of 1 P1, P2 comprises the backboard extension pin of 1 P2 and the extension pin cover of 1 P2, concrete installation process is: the backboard extension pin of 1 P1 of crimping and the backboard extension pin of 1 P2 on No. 5 groove positions in 14 groove PXI backboard fronts, correspondingly, in No. 5 groove positions at the 14 groove PXI backboard back sides extension pin cover of 1 P1 and the extension pin cover of 1 P2 are installed.Same, on the position of No. 8 grooves on the 14 groove PXI backboards, carry out the installation of P1 and P2 respectively.
Weld 36 core contact pins successively in 1 the 4 core contact pin of space welding between No. 6 grooves at the 14 groove PXI backboard back sides and No. 7 grooves, space between No. 8 grooves at the 14 groove PXI backboard back sides and No. 9 grooves, at 4 location holes in the zone (rectangular area R) at No. 8 groove place, No. 5 groove～nut on 4 double-screw bolts and the double-screw bolt is installed respectively.
(2) 4 females of crimping correspondingly on the crimping bore region on PCI-PCI bridge plate 6 fronts, comprise 2 J1 and 2 J2, and between two crimping bore regions in PCI-PCI bridge plate 6 fronts the welding 14 core socket, this 4 core socket is corresponding to described 4 core contact pins, secondary side in PCI-PCI bridge plate 6 fronts welds 36 core sockets successively, and this 6 core socket is corresponding to described 6 core contact pins.
(3) it is interconnected to adopt the mode of parallel lamination to carry out 14 groove PXI backboards and PCI-PCI bridge plate 6, and the front that is about to PCI-PCI bridge plate 6 is connected with the back side of 14 groove PXI backboards.Correspondingly, the P1 on No. 5 grooves at the 14 groove PXI backboard back sides cooperates with J1, P2 cooperates with J2, and the P1 on No. 8 grooves at the 18 groove PXI backboard back sides cooperates with J1, P2 cooperates with J2.Described 4 core contact pins and 4 core sockets fit together formation 14 core connector, described 6 core contact pins and 6 core sockets and fit together 36 core connectors of formation respectively.Being about to PCI-PCI bridge plate 6 is connected across between No. 5 grooves and No. 8 grooves, four jiaos of through holes that offer corresponding to described location hole of PCI-PCI bridge plate 6, behind the through hole on described 4 double-screw bolts insertion PCI-PCI bridge plate 6, screw in 4 nuts at double-screw bolt, like this by the back side of two nuts on each double-screw bolt with PCI-PCI bridge plate 6 stuck-at-s 4 groove PXI backboards, realize the fixing of 14 groove PXI backboards and bridge plate, thereby obtain one based on the device that reinforces the connection of 14 groove PXI backboard bridgers.
This device that reinforces the connection can be realized distinctive signal, the section of striding that comprises clock signal clk, bus request signal REQ and arbitrating signals GNT is distributed, for example, adopt this device that reinforces the connection to realize system's control flume (No. 1 groove) to the distribution of the signal of 8～No. 14 grooves in the Bridge 2 section, detailed process is as follows:
No. 1 groove goes between respectively with one group of signal by the copper of 14 groove PXI backboard inside respectively, comprise that CLK, REQ and GNT distribute to the P1 connector of 2～No. 7 grooves, these connectors transmit described one group of signal to corresponding groove position, simultaneously, No. 1 groove three copper lead-in wires by 14 groove PXI backboards, 4 inside are distributed to 4 core connectors of PCI-PCI bridge plate 6 with described one group of signal, shown in Fig. 4 (a).4 core connectors should be organized signal by the copper lead-in wire of PCI-PCI bridge plate 6 inside and be dispensed to PCI-PCI bridge plate chip, and as shown in Figure 6, PCI-PCI bridge plate chip carries out two kinds of situations distribution by the copper lead-in wire of PCI-PCI bridge plate 6 inside with described one group of signal:
1. PCI-PCI bridge plate chip is distributed to the PCI bridge secondary side female J1 of PCI-PCI bridge plate 6 with described one group of signal, and J1 distributes described one group of signal to give No. 8 grooves by the P1 of No. 8 grooves.
2. simultaneously, PCI-PCI bridge plate chip is distributed to 36 core connectors respectively with described one group of signal, is specially:
At 6 signals of first 6 core connector distribution, comprise REQ1, GNT1, REQ2, GNT2, REQ3, GNT3; At 6 signals of second 6 core connectors distribution, comprise REQ4, GNT4, CLK4, CLK3, CLK2, CLK1; At 6 signals of the 3rd 6 core connectors distribution, comprise GNT 5, REQ5, CLK5, GNT6, REQ6, CLK6.
Described CLK, REQ, GNT signal are divided into 6 the tunnel: CLK1, REQ1, GNT1 after 36 core connectors are handled; CLK2, REQ2, GNT2; ... CLK6, REQ6, GNT6; And correspondingly the lead-in wire of the copper by 14 groove PXI backboard inside exports the P1 connector of No. 9 grooves, No. 10 grooves, No. 11 grooves, No. 12 grooves, No. 13 grooves, No. 14 grooves to.
By the different groove position of distribution corresponding signal to 14 groove PXI backboards, guaranteed the standardization of each groove position PXI backboard signal like this.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the device that reinforces the connection based on PXI backboard bridger comprises PXI backboard and PCI-PCI bridge plate (6); Wherein: described PXI backboard is selected any one PXI backboard in 9～21 groove PXI backboards for use; It is characterized in that described PXI backboard is divided by the bridge section, make the groove number in each bridge section be less than or equal to 7; According to the bridge hop count of dividing, determine the number of the described bridge plate of PCI-PCI described in the device (6) that reinforces the connection, the number of PCI-PCI bridge plate (6) is that described bridge hop count subtracts 1; Each PCI-PCI bridge plate (6) all is connected across between two adjacent bridge sections with the connected mode of parallel lamination;
Each PCI-PCI bridge plate (6) with the annexation of described PXI backboard is:
Choose 4 grooves continuously from adjacent two bridge sections, wherein, at least one groove is in last bridge section, and at least one groove is in the Hou Yiqiao section; 4 selected grooves are designated as C1, C2, C3, C4 successively, 1 PXI connector P1 and 1 PXI connector P2 are installed in the groove position of C1, P1 and P2 occupy the whole groove position of C1 jointly, P1 comprises the backboard extension pin of 1 P1 and the extension pin cover of 1 P1, and P2 comprises the backboard extension pin of 1 P2 and the extension pin cover of 1 P2; The backboard extension pin of described P1 and the backboard extension pin of P2 are passed the locational crimping of C1 hole from PXI backboard front, and correspondingly be fastened in the extension pin cover of the extension pin cover of the locational P1 of C1 at the PXI backboard back side and P2, similarly, be separately installed with other one group of PXI connector P1 and P2 on the C4 position of PXI backboard;
14 core contact pin is welded on the C2 at the PXI backboard back side and the gap between the C3, and 36 core connectors are welded on the C4 at the PXI backboard back side and the gap between the adjacent groove position of not choosing successively; Four jiaos at C1～C4 place rectangular area R arrange four location holes altogether, at the nut that all is equipped with on each location hole on 1 double-screw bolt and the double-screw bolt;
Be crimped with 4 females on the crimping bore region in described PCI-PCI bridge plate (6) front, comprise 2 J1 and 2 J2, J1 cooperates with P1, J2 cooperates with P2, be welded with 14 core socket between two crimping bore regions in PCI-PCI bridge plate (6) front, the positive secondary side of PCI-PCI bridge plate (6) welds 36 core sockets successively; Four jiaos of through holes that offer corresponding to described location hole of PCI-PCI bridge plate (6);
The positive described rectangular area R towards the PXI backboard back side of PCI-PCI bridge plate (6), the extension pin in the extension pin cover of each J1 and a P1 is docked, and the extension pin in the extension pin cover of each J2 and a P2 is docked; Described 4 core contact pins are docked to 4 core sockets and constitute 14 core connector, described 6 core contact pins and be docked to respectively with 6 core sockets and constitute 36 core connectors, comprise the one 6 core connector (2), the 26 core connector (3) and the 36 core connector (4); Screw in nut at double-screw bolt behind the through hole on the described double-screw bolt insertion PCI-PCI bridge plate (6), PCI-PCI bridge plate (6) is fixed on the back side of PXI backboard by two nuts on each double-screw bolt;
If described PXI backboard is divided into N bridge section, the PCI-PCI bridge plate (6) of cross-over connection is n PCI-PCI bridge plate (6) between n bridge section and n+1 the bridge section; Wherein, the n span is 1～N-1;
Connect in the following way for n PCI-PCI bridge plate (6):
(1) when n equals 1, from the 1st the bridge section of dividing, select first groove position as system's control flume, system's control flume is by 4 core connectors of three copper lead-in wire the 1st PCI-PCI bridge plates of connection (6) of described PXI backboard inside, and these three copper lead-in wires are used for one group of signal to be allocated of transmission;
When n was not equal to 1, described 4 core contact pins connected 6 core connectors of n-1 PCI-PCI bridge plate (6) by PXI backboard internal copper lead-in wire, thereby obtain one group of signal to be allocated from 6 core connectors of n-1 PCI-PCI bridge plate (6);
(2) described 4 core sockets connect PCI-PCI bridge plate chip by the inner copper lead-in wire of the 1st PCI-PCI bridge plate (6), be used for described signal to be allocated is transferred to PCI-PCI bridge plate chip, this PCI-PCI bridge plate chip connects secondary side female J1 by the inner copper lead-in wire of PCI-PCI bridge plate (6), be used for described one group of signal to be allocated is assigned to this J1, PCI-PCI bridge plate chip also connects each 6 core socket by 18 copper lead-in wires simultaneously, be used for described one group of signal to be allocated is assigned as the identical signal to be allocated of m part, be assigned on 36 core connectors, m is less than or equal to 6;
(3) on the PXI backboard, the groove position C4 in n+1 bridge section obtains signal to be allocated on the J1 by P1, and the signal to be allocated of respectively organizing in the 6 core connectors is distributed to other groove positions except C4 in n+1 the bridge section by the copper lead-in wire respectively;
When n was not equal to 1,6 core connectors on n the PCI-PCI bridge plate (6) provided one group of signal to be allocated to n+1 PCI-PCI bridge plate (6).
2. a kind of device that reinforces the connection based on PXI backboard bridger as claimed in claim 1 is characterized in that described signal to be allocated comprises clock signal clk, bus request signal REQ and arbitrating signals GNT.
3. a kind of device that reinforces the connection based on PXI backboard bridger as claimed in claim 2 is characterized in that, described signal to be allocated is assigned as 6 parts, obtains REQ1～REQ6, GNT1～GNT6, CLK1～CLK6;
Distribute 6 signals at the one 6 core connector (2), comprise REQ1, GNT1, REQ2, GNT2, REQ3, GNT3; Distribute 6 signals at the 26 core connector (3), comprise REQ4, GNT4, CLK4, CLK3, CLK2, CLK1; Distribute 6 signals at the 36 core connector (4), comprise GNT5, REQ5, CLK5, GNT6, REQ6, CLK6.
4. a kind of device that reinforces the connection based on PXI backboard bridger as claimed in claim 1 or 2 is characterized in that, the length of described PCI-PCI bridge plate (6) * wide is: 93mm * 110mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110392301 CN102496821B (en) | 2011-12-01 | 2011-12-01 | Reinforcing connecting device based on PXI backboard bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110392301 CN102496821B (en) | 2011-12-01 | 2011-12-01 | Reinforcing connecting device based on PXI backboard bridge |
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| CN102496821A CN102496821A (en) | 2012-06-13 |
| CN102496821B true CN102496821B (en) | 2013-07-10 |
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| CN 201110392301 Active CN102496821B (en) | 2011-12-01 | 2011-12-01 | Reinforcing connecting device based on PXI backboard bridge |
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| CN103414037A (en) * | 2013-08-20 | 2013-11-27 | 沈阳兴华航空电器有限责任公司 | Elastic contact |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2671289Y (en) * | 2003-12-02 | 2005-01-12 | 华为技术有限公司 | Mono-plate and double surface inserting plate connected therewith |
| CN101159559A (en) * | 2007-09-06 | 2008-04-09 | 杭州华三通信技术有限公司 | Rear panel and implementing method thereof |
| CN101305289A (en) * | 2005-08-03 | 2008-11-12 | 爱德万测试株式会社 | Providing precise timing control within a standardized test instrumentation chassis |
| CN201853172U (en) * | 2010-11-29 | 2011-06-01 | 山东超越数控电子有限公司 | Downwards turning reinforced computer capable of expanding power xtra tune (PXT) bus board cards |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7362089B2 (en) * | 2004-05-21 | 2008-04-22 | Advantest Corporation | Carrier module for adapting non-standard instrument cards to test systems |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2671289Y (en) * | 2003-12-02 | 2005-01-12 | 华为技术有限公司 | Mono-plate and double surface inserting plate connected therewith |
| CN101305289A (en) * | 2005-08-03 | 2008-11-12 | 爱德万测试株式会社 | Providing precise timing control within a standardized test instrumentation chassis |
| CN101159559A (en) * | 2007-09-06 | 2008-04-09 | 杭州华三通信技术有限公司 | Rear panel and implementing method thereof |
| CN201853172U (en) * | 2010-11-29 | 2011-06-01 | 山东超越数控电子有限公司 | Downwards turning reinforced computer capable of expanding power xtra tune (PXT) bus board cards |
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Inventor after: Wei Jianrong Inventor after: Liu Miao Inventor after: Yang Shuo Inventor after: Zhang Hong Inventor before: Wei Jianrong Inventor before: Liu Miao |
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