GPS170PCI : GPS Clock for Computers (PCI/PCI-X Bus)

Features

PCI LOCAL BUS interface, 3.3V or 5V, 33MHz or 66MHz,
PCI-X compatible
2 time trigger inputs
Pulses per second and per minute
Periodic interrupts
RS232 interface
IRIG-B/AFNOR time code outputs and NEW:3 programmable TTL outputs
Plug and Play
DCF77-simulation
Antenna connected with up to 300m of standard coaxial cable RG58
DC-insulated antenna circuit
Driver software for all popular operating systems
Flash-EPROM with bootstrap loader

Overview

The board GPS170PCI has been designed to synchronise the system time of computers with PCI/PCI-X bus interface.
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.

Additional drivers packages are available for DOS, Novell NetWare, and OS/2. At the bottom of this page there´s a link to the download area.

The device´s serial port can be used to update the card´s firmware. Additionally it can be connected to the serial port of a computer to use the card as reference time source under operating systems where a serial time string is supported, e.g. by NTP, but no kernel device driver is available.