概述

作為GENASYS平臺的組件，GX7016開關(guān)子系統(tǒng)為板級和系統(tǒng)級功能測試提供了新的高性能，高密度開關(guān)陣列。基于6U PXI架構(gòu)，GX7016集成了模塊化開關(guān)矩陣和多路復(fù)用器架構(gòu)，支持多達(dá)4608個(gè)復(fù)合I/O引腳。通過高性能內(nèi)部16線矩陣總線，可將多達(dá)128個(gè)外部資源連接到任何測試系統(tǒng)的接收器I/O引腳。對于數(shù)字測試功能，GX7016的開關(guān)子系統(tǒng)可以連接到數(shù)字子系統(tǒng)，如我們的GX5960數(shù)字子系統(tǒng)，為每個(gè)復(fù)用的I/O引腳提供混合引腳功能。開關(guān)子系統(tǒng)支持多達(dá)288個(gè)數(shù)字通道。

GX7016機(jī)箱采用MAC面板6U SCOUT接收器。SCOUT接收器提供可靠和高性能的方法將交換機(jī)模塊連接到大容量互連接收器，從而最大限度地減少對電纜組件的需求。SCOUT接收機(jī)是一種“直通”設(shè)計(jì)，每個(gè)交換機(jī)卡提供了一個(gè)“無線”連接到接收器連接器—無需電纜線束以及與電纜解決方案相關(guān)的可靠性問題。結(jié)果是一種低成本，高可靠性和可維護(hù)性的系統(tǒng)互連設(shè)計(jì)。SCOUT的模塊化設(shè)計(jì)還允許使用廣泛的接收器連接器，包括高密度，高電流和同軸類型。6U SCOUT接收器可以容納多達(dá)21個(gè)連接器插槽，并且在完全填充時(shí)可容納超過8000個(gè)連接點(diǎn)。

特征

GX7016是一個(gè)20插槽的6U PXI機(jī)箱，可容納多達(dá)19個(gè)開關(guān)板卡或儀表卡以及遠(yuǎn)程PXI總線接口板卡，如MXI-4。除了支持所有的PXI-1資源外，GX7016的背板通過P5連接器提供內(nèi)部高性能的16通道的模擬總線。每個(gè)GENASYS開關(guān)板卡都與這內(nèi)部的總線向量，可以將信號從外部儀器傳送到接收器的任何接口。

GX7016的電源系統(tǒng)為755W。機(jī)箱的強(qiáng)制冷系統(tǒng)為4個(gè)79 CFM的風(fēng)扇。無論使用多少儀器板卡或開關(guān)板卡，這種制冷配置都可以為機(jī)箱提供最佳的冷卻方案。同時(shí)系統(tǒng)還提供了另外的制冷方案，可與機(jī)箱內(nèi)的空氣增壓相配合，為每個(gè)PXI模塊插槽提供氣流，不需要額外的進(jìn)出風(fēng)口。

GX7016機(jī)箱具有插槽溫度和系統(tǒng)電源電壓監(jiān)控功能，同時(shí)還能將每個(gè)PXI觸發(fā)線從一個(gè)PCI段編程或映射到另一個(gè)。此外，用戶編程控制溫控功能，實(shí)現(xiàn)警告和關(guān)機(jī)。所有用戶的個(gè)性化配置可以存儲在非易失性存儲器中，可以作為用戶的默認(rèn)配置使用。

結(jié)構(gòu)

GX7016中，1槽專用于遠(yuǎn)程系統(tǒng)控制器。可以在2槽中用于PXI Star觸發(fā)控制器，除此以外，任何PXI或cPCI或GENASYS開關(guān)模塊都可以使用這個(gè)槽位。3——15槽位支持PXI Star觸發(fā)，任何PXI或cPCI儀器或GENASYS開關(guān)模塊。16-29槽可以容納沒有Star Trigger或GENASYS開關(guān)模塊的PXI或cPCI板卡。

開關(guān)子系統(tǒng)

GX7016的模塊架構(gòu)可使開關(guān)子系統(tǒng)支持更加廣泛的配置和功能。GX6032安裝在機(jī)箱的后面板，是一塊矩陣開關(guān)模塊，可用于輸入模擬信號管理。該模塊配置為32 x 16矩陣，最多支持32個(gè)輸入，可連接到GX7016的內(nèi)部16線總線。 這些模塊最多可以系統(tǒng)最多可以支持4個(gè)這樣的模塊。

GX6256 MultiMatrix?開關(guān)卡支持信號從內(nèi)部背板連接到接收器接口，該開關(guān)板卡是一個(gè)擴(kuò)展的6U PXI模塊，可直接連接到接收器接口。該模塊結(jié)合了16x16矩陣和16個(gè)2:16多路復(fù)用器。 結(jié)果是可以支持來自16線總線的多達(dá)256個(gè)復(fù)用信號的開關(guān)卡。 另外，還包括輔助總線，提供將2個(gè)資源路由到復(fù)用組內(nèi)的每組16個(gè)I / O引腳的能力。GX6256還支持為16個(gè)輸入/輸出中的每一個(gè)選擇模擬或數(shù)字資源（GX5960數(shù)字子系統(tǒng)）。

對于更高性能的模擬開關(guān)應(yīng)用，GX7016可配置GX6192 HF MultiMatrix?開關(guān)卡，該卡組合了16x16矩陣16個(gè)1x12多路復(fù)用器，在接收器接口上提供總共192個(gè)高性能I/O引腳。HF資源通過外部連接器直接連接到GX6192。此外，信號可以通過系統(tǒng)的內(nèi)部16線總線連接到/從HF開關(guān)卡到系統(tǒng)中的其他開關(guān)卡。

軟件

GX7016具有兩個(gè)軟件包：GxChassis用于監(jiān)視和控制機(jī)箱，GxSW控制和顯示開關(guān)連接。GxChassis虛擬面板可用于根據(jù)定義的溫度水平交互式設(shè)置/顯示關(guān)機(jī)和報(bào)警條件，設(shè)置PXI觸發(fā)線并控制風(fēng)扇轉(zhuǎn)速并監(jiān)控電源電壓。GxSW虛擬面板可用于交互式連接，斷開連接并顯示交換連接，執(zhí)行BIT，查看中繼使用次數(shù)等。

高級開關(guān)軟件——SwitchEasy允許顯示、控制和管理總體信號路由，并通過讓用戶簡單地定義資源和接收器引腳或UUT連接來提供端到端信號路由，從而簡化整體應(yīng)用開發(fā)和部署時(shí)間。

這兩個(gè)軟件包都包含32位/64位DLL驅(qū)動程序庫和文檔。虛擬面板可以使用此外，還提供了一個(gè)API，它支持各種編程工具和語言，如ATEasy，Microsoft?Visual Basic，C＃和C/++，LabVIEW和LabWindows/CVI等。

應(yīng)用

• GENASYA開關(guān)子系統(tǒng)
• 自動化系統(tǒng)測試應(yīng)用
• 高IO計(jì)數(shù)，混合信號測試應(yīng)用

Configuration
The GX7016's Slot 1 is dedicated for the remote system controller. A PXI Star Trigger controller, any PXI or cPCI instrument or a GENASYS switching module can be used in slot 2. Slots 3-15 support the PXI Star Trigger, any PXI or cPCI instrument or a GENASYS switching module. Slots 16-20 accommodate a PXI or cPCI instruments without the Star Trigger or a GENASYS switching module.

Switching Subsystem
The modular architecture of the GX7016 allows the switching subsystem to support a wide range of configurations and capabilities. Input analog signal routing is supported by the GX6032, a matrix switch module which is located on the rear of the chassis. This module is configured as 32 x 16 matrix and supports up to 32 inputs which can be connected to the GX7016’s internal 16 wire bus. Up to (4) of these modules can be supported by the system.

Signal routing from the internal backplane to the receiver interface is supported by the GX6256 MultiMatrix? switch card which is an extended 6U PXI module with direct connection to the receiver interface. The module combines a 16x16 matrix with (16) 2:16 multiplexers. The result is a switch card that can support up to 256 multiplexed signals from the 16 wire bus. Additionally, a secondary bus is included, providing the ability to route (2) resources to each group of 16 I/O pins within a mux group. The GX6256 also supports the ability to select an analog or digital resource (GX5960 digital subsystem) for each of the 16 inputs/ outputs.

For higher performance analog switching applications, the GX7016 can be configured with the GX6192 HF MultiMatrix? switch cards which combines a 16x16 matrix with (16) 1x12 multiplexers, providing a total of 192 high performance I/O pins at the receiver interface. HF resources are connected directly to the GX6192 via an external connector. In addition signals can be routed to / from the HF switch card to other switch cards in the system via the system’s internal 16 wire bus.

Software
The GX7016 is supported by two software packages: GxChassis to monitor and control the chassis and GxSW to control and display the switching connections. The GxChassis Virtual Panel can be used to interactively set /display shutdown and alarm conditions based on defined temperature levels, set the PXI trigger lines and control the fan speed and monitor the power supply voltage. The GxSW Virtual Panel  can be used to interactively connect, disconnect and display the switching connections, perform BIT, view relay usage count and more.
High level switching software - SwitchEasy allows you to display, control and manage overall signal routing and provides end to end signal routing by having the user simply define the resource and receiver pin or UUT connections, simplifying overall application development and deployment time.

Both software packages includes 32/64-bit DLL driver libraries and documentation. The virtual panel can be used to In addition, an API is supplied that supports a variety of programming tools and languages such as ATEasy, Microsoft? Visual Basic, C# and C/++, LabVIEW, and LabWindows/CVI and more.

Applications

• GENASYS switching subsystem
• Automated system test applications
• High I/O count, mixed-signal test applications

Knowledge Base Articles pertaining to GX7016

White Paper: PXI-Based, Advanced Switching Architecture for Functional Test
This white paper describes the advantages of leveraging the 6U PXI architecture and employing advanced signal routing topologies to create modular, high performance switching subsystems. Read more...

White Paper: PXI-Based, High Performance, High Density Switching Architecture
This paper reviews current switching architectures employed today and discusses the benefits / limitations of current COTS offerings. Read more...

White Paper: PXI-Based, Functional Test Solutions for Legacy and Next Generation Test Requirements
For both legacy and next generation test requirements, the PXI architecture offers a robust set of capabilities for performance mixed-signal test applications. By combining the capabilities of a performance digital subsystem (GX5960) with the flexibility of the GX7016 switching subsystem, the GENASYS platform provides all of the capabilities needed to address both legacy and future test needs. And with the modularity of these subsystems, end users have the option to configure these systems with moderate to high pin counts and with a wide range of instrumentation. The GENASYS platform and its subsystems has wide applicability for both factory and depot applications – solving both the legacy and future test needs for high value, mission critical products. Read more...

Downloads for GX7016
GX7016 Data Sheet
GX7016 Switching Subsystem (GX6192, GX6256, GX6864) User's Guide
GXSW (GX6xxx, GX7016) Read Me
GXSW (GX6xxx) Software
GxChassis (GX7000, GX7100, GX7200, GX7300, GX7600 series) ReadMe.txt
GXChassis (GX7000, GX7100, GX7200, GX7300, GX7600 series) Software

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