Reinforcing connecting device based on PXI backboard bridge

A connection device and bridge technology, applied in the direction of two-part connection device, parts of the connection device, connection, etc., can solve the problem of poor seismic performance of the PXI backplane, easy problems with three-proof materials, and reduce the reliability of the PXI backplane and other problems to achieve the effect of ensuring reliability, improving reliability, and ensuring anti-vibration performance

Active Publication Date: 2012-06-13
BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Another design method is to separate the design of the PXI backplane motherboard and the PCI-PCI bridge, and then realize the stacked interconnection through a long and narrow connector. The selected connector can be arranged between adjacent PXI slots. Due to the above design method, although this method will not increase the vertical height of the PXI backplane, since the connector can only be packaged as a surface mount, the overall shock resistance of the PXI backplane is not strong. In addition, when coating the three-proof material It is also prone to problems, which ultimately reduces the reliability of the PXI backplane

Method used

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  • Reinforcing connecting device based on PXI backboard bridge
  • Reinforcing connecting device based on PXI backboard bridge
  • Reinforcing connecting device based on PXI backboard bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In this embodiment, the backplane of the 18-slot PXI chassis is taken as an example to illustrate the reinforcement design and installation process.

[0055] Table 1 18-slot / 14-slot PXI backplane connectors and accessories

[0056] serial number

Specifications, models

illustrate

manufacturers

quantity

1

923197

Backplane extension pin of PXI connector P1

ERNI

2

2

923131

Backplane extension pin of PXI connector P2

ERNI

2

3

114436

Extended pin shield for PXI connector P1

ERNI

2

4

114425

Extended pin shield for PXI connector P2

ERNI

2

5

104702

Female J1

ERNI

2

6

114113

Female J2

ERNI

2

7

MTMM-104-14-S-S-690

4 core pins, 2mm pitch

SAMTEC

1

8

SQT-104-03-L-S

4-core socket, 2mm pitch

SAMTEC

1

9

MTMM-106-14-S-S-690

...

Embodiment 2

[0077] In this embodiment, a 14-slot PXI chassis backplane is taken as an example to illustrate the reinforcement design and installation process.

[0078] The 14-slot PXI backplane bridge reinforcement connection device includes a 14-slot PXI backplane and a PCI-PCI bridge board 6 . See Table 1 for the connectors, female headers, pins, sockets, studs, and nuts involved in connecting PCI-PCI bridge board 6 to the 14-slot PXI backplane.

[0079] The 14-slot PXI backplane is divided into two bridge sections: the first bridge section is slots 1 to 7, and the second bridge section is slots 8 to 14.

[0080] The reinforcement connection process based on the 14-slot PXI backplane bridge is as follows:

[0081] (1) The length × width of the 14-slot PXI backplane is: 325mm×129mm, and one PXI connector P1 and one PXI connector P2 are installed on the position of slot 5 on the 14-slot PXI backplane. P1 includes 1 P1 backplane extension needle and 1 P1 extension needle shield, P2 inclu...

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PUM

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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 backside 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 [0001] The invention relates to instrument bus technology, belongs to the field of automatic test and measurement systems, relates to a method for interconnection when a PXI backplane motherboard and a PCI-PCI bridge board are designed separately, and specifically relates to a reinforced connection device based on a PXI backplane bridge. Background technique [0002] The PXI specification clearly stipulates the connectors used for each slot in the PXI backplane, the distance between adjacent slots, and the maximum number of devices supported by each PXI bridge segment. When the PXI backplane has more than 8 slots, a PCI-PCI bridge needs to be added to realize cross-segment communication. [0003] One design method is to design the PXI backplane motherboard and PCI-PCI bridge into the same circuit board to achieve high reliability, but due to the limited size between adjacent slots, this method must increase the PXI backplane The vertical height of the board ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R24/00H01R31/06H01R13/46H01R13/02H01R13/639
Inventor 韦建荣刘淼
Owner BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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