This software package is a fully featured NTP Time Server with the capability to accept an NMEA compliant GPS Time Source as its reference such as the Rapco 1804 models. A simple serial connection between a spare port on the PC nominated to be the network time server and the RS232 output on the GPS unit completes the hardware installation. On receipt of a valid NMEA time message from the GPS unit, the software will update the PC’s internal clock to the UTC content of the message received. A user specified offset can be included to match the time in the local time zone. The software then monitors the LAN ready to respond to requests for time updates from network clients.

The second part of the system consists of a software module loaded onto each network client required to be time synchronised. Each client may be configured to raise a request to the time server for a time update on a scheduled basis or simply at log in. Versions of the client module are available for Windows 95, Windows 98 and Windows NT. On receipt of the time message from the server, the internal clock of the client is adjusted as required.

User licences for the system are available in single server, single client and 20 client modules.