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8030HEPTA/GPS GPS - NTP Time Server with 2x 10/100/1000 MBit LAN Interface - V04.00
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hopf
Elektronik GmbH
Nottebohmstr. 41
• D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]
8.3.3 NTP Tab
This tab shows information and adjustment possibilities of the NTP services of the Time Server
8030HEPTA/GPS. The NTP service is the significant main service of the Time Server
8030HEPTA/GPS.
If you are not familiar with the subject of NTP you can find a short description in the Glossary.
More details are also available at
NTP functionality is provided by an NTP-Demon running on the embedded Linux of the Time
Server 8030HEPTA/GPS.
Depending on the receiving conditions and under unfavourable circumstances it may take
several hours until long-term accuracy is obtained (normally 5-10 minutes). During this time
the NTP algorithm adjusts the internal accuracy parameters.
The NTP time protocol must be enabled in order to use NTP
(see
Chapter 8.3.2.8 Time
After all changes relating to NTP a restart of the NTP service must be per-
formed (see
Chapter 8.3.3.6 Restart NTP
Via the NTP protocol SNTP Clients can also be synchronized. In contrast
to NTP in SNTP Clients delay times are not evaluated on the network. For
this reason the accuracy reached in SNTP Clients is lower than in NTP Cli-
ents.