Agilent Technologies U2781A manual 3Block diagram of Trigger Bus0...7 and Trigger Out

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Features and Functions

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Trigger Bus [0...7]

Trigger Bus [0...7] is an 8- bit digital bus connected from slot 1 to slot 6 to synchronize different USB modules. This trigger bus enables the USB modules of passing trigger signals to one another.

To have one of the modules to control the operation of the other modules, set the particular module as MASTER and the rest as SLAVE (refer to “Simultaneous Synchronization (SSI)” on page 39 for more details). The control signal is sent from the Master module to the SLAVE modules through this trigger bus. See Figure 3- 3 for the bus architecture.

Figure3-3Block diagram of Trigger Bus[0...7] and Trigger Out

In addition, the trigger bus can also be used to carry out the pre- configuration of the chassis and modules before any triggering activities. Refer to “Identifying Modules Location” on page 38 for more information,

U2781A User’s Guide

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Contents Agilent U2781A USB Modular Instrument Chassis WA R N I N G Regulatory Markings Safety SymbolsThis Guide… Declaration of Conformity Regulatory Information for Australia/New Zealand Contents Contents Getting Acquainted Introduction Checking the Contents FeaturesApplications Product Outlook Operating Environment General SpecificationsPower Supply AC Input Electrical SpecificationsPhysical Layout Mechanical SpecificationsGetting Acquainted Installation T E Mount Kit InstallationModular Chassis Installation Hardware Requirements System RequirementsSoftware Requirements DAQ Driver InstallationInstalling the USB DAQ driver Installation Click Finish when the installation is completed Hardware Verification Agilent Measurement Manager Software InstallationInstallation Features and Functions Features and Functions USB Backplane SSI timing signal Functionality2USB backplane block diagram Trigger Bus 3Block diagram of Trigger Bus0...7 and Trigger OutExternal Trigger In Star Trigger Trigger OutSystem Reference Clock 5Block diagram of temperature monitoring and fan control Chassis Temperature MonitoringFan Speed Monitoring Georgraphical Address Identifying Modules LocationModules Identification SYSTCDES? Simultaneous Synchronization SSI 7Synchronization between modules in the chassis Features and Functions General Maintenance General Maintenance Contact us