NTP Servers - Configuration

NTP Server systems utilise the Network Time Protocol (NTP) to synchronise the system time of computers. NTP was developed to overcome the undesired effects of network delays in time distribution.

Network Time Protocol is one of the oldest network protocols in use. Originally it was developed in 1985 by Dave Mills of the University of Delaware, who still maintains it conjunction with a number of volunteers.

NTP version 4, the latest release, can maintain accuracies of <200 microseconds on local are networks and <10 milliseconds over the internet.

Network Time Protocol utilises a hierarchical stratum system. Stratum 1 devices are synchronised to a highly accurate external clock. Stratum 2 devices derive their time from Stratum 1 devices, and so on.

A simplified and much less complex version of NTP is available called Simple Network Time Protocol (SNTP). Simple Network Time Protocol utilises the same packets as NTP for time interchange, but lacks the complexities of NTP to maintain an accurate time. SNTP is intended for embedded applications with memory constraints or where accuracy is much less important.

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	NTP s5000 Radio NTP Server Latest release NTP 4.2.0 Stratum 1 MSF or DCF-77 NTP\SNTP time server. Easy-to-use web based user interface. Accurate to < 1.4 milliseconds. Free firmware upgrades. 3 Year Warranty. 30 day money back guarantee.
	NTP s5100 GPS NTP Server Latest release NTP 4.2.0 Stratum 1 GPS NTP\SNTP time server. Easy-to-use web based user interface. Accurate to < 50 microseconds. Free firmware upgrades. 3 Year Warranty. 30 day money back guarantee
	NTP s5500 Dual GPS\Radio NTP Server Latest release NTP 4.2.0 Stratum 1 Dual MSF, DCF-77 and GPS NTP\SNTP time server. Easy-to-use web based user interface. Accurate to < 50 microseconds. Free firmware upgrades. 3 Year Warranty. 30 day money back guarantee.

The NTP s5000 NTP Servers can be configured in a number of ways:

• Web page via network.
• Via RS232 Console Port to host computer.
• Telnet session via network.

NTP Servers - Default Network Configuration

NTP Servers - Default NTP Configuration

Additional References:

NTP servers
NTP time server
SNTP server
Network time server