Manufactured bySymmetricom
Product groupMulti-Function Time and Frequency PCI Plug-in Cards
DescriptionSymmetricom PCI-SG-2U 560-5907-U PCI Plug-in Card | High-performance | 32-bit | Multi-function Time and Frequency Module
Key FeaturesIRIG A, B, or 1 PPS input IRIG B or 1 PPS output 1 PPS to 1 MPPS programmable rate synthesizer output/interrupt 1, 5, and 10 MPPS rate generator output/interrupt External event input/interrupt Programmable time-compare input/interrupt Real-time clock backup Windows control panel interface software Optional Windows software developer's kit Zero-latency time reads 3.3 V and 5.0 V universal signaling
OverviewThe PCI-SG 2U provides precise time to computers that have PCI expansion slots. The time is derived from an IRIG A or B time code input or the internal oscillator in the standalone generator mode.The frequency of the internal oscillator is precisely disciplined to the external synchronization input. Synchronization to an external 1 PPS is also possible.Time, microseconds through years, and status information are supplied on demand over the 32-bit PCI bus. The PCI-SG 2U also provides a 1 PPS pulse rate, a programmable time-compare register, a programmable frequency pulse rate, an external event time capture, and an IRIG B serial time code output.Rear panel BNC connectors are used for the IRIG code input/output. A rear panel–mounted multipin connector provides the 1 PPS pulse rate output, the programmable pulse rate output, the external event input signal, and the input/output connections for the RS-422 versions of the input/output IRIG time code. The analog input code can also be configured with various input impedance choices.The PCI-SG 2U automatically supports both 3.3 V and 5.0 V signaling of the PCI bus. Information provided over the PCI bus includes time, status, and the external event occurrence time. Also provided are interrupts generated by the programmable rate generator, the rate synthesizer, the external event input occurrence, and the time-compare occurrence. Depending upon the operating mode, the hours offset from UTC, leap second, year, and daylight saving time can be programmed. An on-board, capacitor-powered clock maintains time during a power failure condition for up to 48 hours.Integration of the module is easily facilitated with the optional driver developer's kit for Windows.
