3 General Information about LANTIME
LANTIME
stands for
L
ocal
A
rea
N
etwork
Time
Server. The LANTIME provides an absolute and highly precise
time reference in a TCP/IP network (stratum 1 server). The time is made available to all NTP clients via
the NTP protocol (Network Time Protocol) and allows easy integration of an absolute time reference into an
existing network.
The individual LANTIME variants differ mainly in the time reference source used. An external radio clock,
a built-in GPS, GNSS (GPS, GLONASS, Galileo, BeiDou), or GNS-UC (only GPS and Galileo) satellite re-
ceiver, an IRIG time code receiver, a long-wave radio receiver (DCF77, MSF, WWVB), external NTP servers, or
a hybrid DCF77/GNSS receiver system can be used as a time reference source. A GNSS-synchronized LAN-
TIME, for example, consists of a GNSS satellite receiver, a single-board computer with an integrated network
card, and a power supply unit.
A simplified LINUX operating system is implemented on the single-board computer and is loaded from a flash
disk during the boot phase. All settings can be made using eight pushbuttons and a display
*
. The time server
can also be remotely configured via network over SSH, FTP, or Telnet. An integrated web server provides access
to the LANTIME via any standard web browser.
*
LANTIME M100 time servers do not have a display or function keys. Instead, these systems are configured and monitored via the LANTIME Web
Interface, SSH, Telnet, or FTP.
14
Date: March 1, 2022
LANTIME
