4 The Modular System LANTIME
4 The Modular System LANTIME
LANTIME is a set of equipment composed of a reference clock GNSS, a single-board computer SBC ELX800
500 MHz with integrated network card, and a power supply unit, all installed in a metal desktop case and ready
to operate. The interfaces provided by LANTIME are accessible via connectors in the rear panel of the case.
Details of the components are described below.
The implemented NTPD distributes the reference time from the GNSS receiver cyclic in the network. In-
formation on the NTPD is monitored on the LC-Display or can be inquired via the network.
The installation of LANTIME is very easy for the system/network administrator. The network address, the
netmask and the default gateway have to be configured from the front panel of LANTIME. The network address
or the equivalent name of LANTIME has to be shown to all NTP clients in the TCP/IP network.
As well as NTP the Linux system also supports a number of further network protocols: HTTP(S), FTP, SSH
and Telnet. Because of this remote configuration or status requests can come from any WEB browser. This
access via the network can be deactivated. Changes in the receiver status, errors or other important events are
logged either on the local Linux system or on an external SYSLOG-Server. In addition messages can be sent to
a data center via SNMP traps or automatically generated e-mails where they can be recorded. Furthermore all
alarm messages can be displayed by the large display VP100/20/NET that is accessed via network connection.
In order to avoid a service interruption several LANTIME NTP servers can be installed in the same network to
obtain redundancy.
IMS-M4000
Date: 21st August 2019
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