USER MANUALPXIe-6674PXI Express Timing and Synchronization ModuleThe PXIe-6674 timing and synchronization module enables you to pass PXI timing and triggersignals between PXI Express chassis without using the chassis' system timing slot. ThePXIe-6674 can generate and route clock signals between devices in multiple chassis, providinga method to synchronize multiple devices in a multichassis PXI Express system.This manual describes the electrical and mechanical aspects of the PXIe-6674 and containsinformation concerning its operation and programming.National Instruments DocumentationThe PXIe-6674 User Manual is one piece of the documentation set for your measurementsystem. You could have any of several other documents describing your hardware andsoftware. Use the documentation you have as follows:• Measurement hardware documentation—This documentation contains detailedinformation about the measurement hardware that plugs into or is connected to thecomputer. Use this documentation for hardware installation and configurationinstructions, specifications about the measurement hardware, and application hints.• Software documentation—Refer to the NI-Sync Help, available at ni.com/manuals.You can download NI documentation from ni.com/manuals.Related DocumentationThe following documents contain information that you might find helpful as you read thismanual:• PICMG 2.0 R3.0, CompactPCI Core Specification, available from PICMG atwww.picmg.org.• PXI Specification, Revision 2.1, available from www.pxisa.org.• NI-VISA User Manual, available form ni.com/manuals.• NI-VISA Help, included with the NI-VISA software.• NI-Sync User Manual, available from ni.com/manuals.ContentsIntroduction............................................................................................................................... 2What You Need to Get Started..........................................................................................2Unpacking......................................................................................................................... 3