Tech Recon GPS and Precision Timing
For Military Precision Timing, VME and PMC Still Reign Military systems that depend on precision timing continue to rely on integrated VME and PMC solutions to solve their synchronization and time correlation needs.
Ad Index Sigrid Oseberg, Product Manager, Bus Level Products Spectracom
second time, as well as all of the boards’
Get Connected with technology and time and providing frequency outputs. companies solutions now Using a 10
no synchronization source, the card will function in “Free Run Mode,” starting the time count from a programmed time. VME and PMC board level products provide time to a host computer. The board time may be used to synchronize the PC clock or to synchronize multiple computers on a network to the same time base. The VME and PMC timing boards also function as time code generators, proving time code outputs to synchronize other cards or equipment. Typical applications include: range timing, data analysis systems, power utilities, control rooms, etc.
MHz oscillator, the VME and PMC cards Get Connected is a new resource for further exploration any military VME-based appli- intoprovide zero latency 100 ns time resoluproducts, technologies and companies. Whether your goal is to research thethe latest datasheet from a company, speak directly cations require synchronization tion in time registers. with an Application Engineer, or jump to a company's page,of the or time correlation. Meanwhile, Time is acquired from technical a variety goal of Get Connected is to put you in touch with the right resource. thanks to the ongoing magic of semicontime sources, including the Global PoWhichever level of service you require for whatever type of technology, ductor integration, newer technology sitioning (GPS) or Getand Connected will helpSatellite you connectsystem with the companies andtime products are searching for. such as IRIG. The cards also have smaller components, today’s PMCyoucards codes www.cotsjournalonline.com/getconnected are supporting the same functionality as the ability to synchronize to an external 1 the VME timing cards. That’s led to a rich pps signal. The 1 pps signal does not carry crop of VME and PMC precision timing any time data, so in this case the user may cards that provide accurate time-of-day program the current time to the card. If data. These cards acquire time from a the synchronization source is interrupted time source to which an onboard oscilla- or absent, the disciplined oscillator will Get Connected with technology and companies providing solutions now tor is disciplined. The oscillator frequency count time in a “flywheel state” until Get Connected is a new resource for further exploration into products, technologies and companies. Whether your goal is to research is then used to provide the boards’ subsynchronization is directly achieved. there isEngineer, Free Run datasheet from a company, speak with anIfApplication or jump to a Mode company's technical page, the goal of Get Connec Once the or PMC timing card is in touch with the right resource. Whichever level of service you require for whatever typeVME of technology, Get Connected will help you connect with the companies and products you are searching for. supplied with a synchronization source, or set up to providewww.cotsjournalonline.com/g time in Free Run Mode, there are a variety of functions that these cards support, including an event capture function, an alarm output, as well as a frequency and/or pulse rate output. The frequency outputs will typically include a selectable 1, 5 and 10 MHz output, a dediFigure 1 cated 1 pps output and a programmable The Model TPRO-VME performs timing and synchronization functions referenced to an rate output. Each of these functions has input timecode signal. The board synchronizes its onboard clock to the incoming timecode. an associated interrupt, allowing the user The clock is also provided as an IRIG-B output. The board continues to increment time Get with companies and the host computer can set the (“freewheel”) in the absence of Connected an input timecode. That means Get Connected products featured this section. with companies mentioned in this article. onboard clock over the VMEbus, and theinboard can be used as an IRIG-B generator.
M
Products
www.cotsjournalonline.com/getconnected
End of Article
www.cotsjournalonline.com/getconnected
[ 32 ] COTS Journal December 2006 Get Connected with companies mentioned in this www.cotsjournalonline.com/getconnected