這PXI國(guó)家儀器公司-6682H(零件號(hào):781059-01)是一個(gè)IRIG-B、GPS和IEEE 158虛擬儀器定時(shí)和同步模塊。該模塊可以輕松實(shí)現(xiàn)PXI系統(tǒng)的同步。這倪PXI-6682H也可以用于在預(yù)定義的未來(lái)時(shí)間產(chǎn)生時(shí)鐘信號(hào)和事件，以及通過(guò)同步系統(tǒng)時(shí)間擴(kuò)展的時(shí)間戳輸入。當(dāng)安裝在兼容PXI機(jī)箱的插槽2中時(shí)，該模塊發(fā)送時(shí)鐘觸發(fā)和消息。

該模塊可以在一個(gè)PXI機(jī)箱內(nèi)或幾個(gè)機(jī)箱之間以相對(duì)較低的偏斜路由時(shí)鐘觸發(fā)和信號(hào)。因此，它為單個(gè)PXI系統(tǒng)中的多個(gè)設(shè)備的同步帶來(lái)了新的方法。與這個(gè)定時(shí)和控制模塊IEEE 1588、I、RIG-B、PPS或GPS可用作時(shí)間基準(zhǔn)，以與其他設(shè)備或PXI快遞和PXI系統(tǒng)同步。對(duì)于多個(gè)PXI特快和PXI系統(tǒng)，用戶沒有單獨(dú)的同步時(shí)鐘，但他們也可以考慮使用公共時(shí)間基準(zhǔn)。因此，用戶可以在同步時(shí)間內(nèi)生成同步的未來(lái)時(shí)間事件。

這倪PXI-6682H配有GPS接收器，可以為實(shí)時(shí)GPS天線供電，并接收和處理來(lái)自衛(wèi)星的RF信號(hào)。這定時(shí)和控制模塊當(dāng)配置為啟動(dòng)觸發(fā)控制器時(shí)，可以覆蓋PXI機(jī)箱上的集成10 MHz參考時(shí)鐘。在與GPS同步后，該模塊可以作為IEEE 1588總控器來(lái)控制外部588設(shè)備的同步。

The National Instruments PXI-6682H (Part Number: 781059-01) is an IRIG-B, GPS, and IEEE 158 PXI Timing and Synchronization Module. This module allows for the easy synchronization of PXI systems. The NI PXI-6682H can also be utilized for the generation of clock signals and events at pre-defined future times and timestamp inputs extended through the synchronized system time. This module routes clock triggers and messages when installed in slot 2 of a compatible PXI chassis.

This module can route clock triggers and signals at a comparatively low skew within a PXI chassis or between several chassis. Thus, it brings a new method for the synchronization of multiple devices in a single PXI system. With this Timing and Control Module, IEEE 1588, I, RIG-B, PPS, or GPS can be utilized as the time reference to synchronize with other devices or PXI Express and PXI systems. For multiple PXI Express and PXI systems, the users do not have the synchronized clock alone, but they can also consider using the common time reference. Thus, the user can generate synchronized future time events within the synchronized time.

The NI PXI-6682H comes featured with a GPS receiver that can power a live GPS antenna and receive and process the RF signals from the satellite. This Timing and Control Module can override the integrated 10 MHz reference clock on a PXI chassis when it is configured as a start trigger controller. After getting synchronized to GPS, this module can function as an IEEE 1588 grandmaster to cure the synchronization of external 588 devices.