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GPS180PEX: GPS Time Receiver for PCI Express - low profile board

Key Features:

  • PCI Express Interface
  • 2x time trigger inputs
  • Programmable Pulse Outputs
  • Frequency Synthesizer and Time Code Mode
  • Memory Mapped I/O time reads for high access rates
  • RS-232 interface
  • IRIG-B/AFNOR time code outputs
  • Plug and Play
  • DCF77-simulation
  • Antenna connected with up to 300 m of standard coaxial cable RG58
  • Configurable time scale (UTC/local, GPS time, TAI)
  • Driver software for all popular operating systems
  • Including GPS antenna, 20 m standard cable and manual on USB key

The board GPS180PEX is designed as a low profile board for computers with PCI Express interface. The rear slot cover integrates the antenna connector, a BNC connector for modulated time codes and two status LEDs. The GPS180PEX can be delivered with a bracket in standard height to operate in common desktop computers. In this case the card is equipped with a 9pin D_SUB male connector. I/O signals like RS-232 - PPS and PPM are available now and you can use this interface for firmware updates.

This PCI Express slot card is the best choice for adding a highly accurate time base to your servers or workstations. It can be used as a stratum 0 reference time source for NTP and transforms any machine into a Stratum 1 NTP server without consuming additional physical space in your server room.

Legacy interfaces like IRIG, 1PPS or serial time strings can be used to connect other equipment to the PCIe slot card and transfer the time base over dedicated cable connections to systems which cannot be synchronized via NTP or other network protocols.

The Memory Mapped Access feature offers a fast, simple and efficient way of reading the current time with high precision.

The drivers package for Windows contains a time adjustment service which runs in the background and adjusts the Windows system time continously and smoothly. A monitor program is also included which lets the user check the status of the device and the time adjustment service, and can be used to modify configurable parameters.

The driver package for Linux contains a kernel driver which allows the board to be used as a reference time source for the NTP daemon which is shipped with most Linux distributions. This also turns the computer into a NTP time server which can also provide accurate time to other NTP clients on the network. Some command line tools can be used to setup configurable parameters and monitor the status of the board.