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Meinberg Radio Clocks

Lange Wand 9
31812 Bad Pyrmont, Germany
Phone: +49 (5281) 9309-0
Fax:     +49 (5281) 9309-30

http://www.meinberg.de
[email protected]

LANTIME/SHS/BGT: NTP Time Server with Integrated Highly Secure
Hybrid Receiver Technology (GPS/DCF77) in 3U housing

Meinberg LANTIME time servers are used around the world to provide accurate time to networks of any size.
The SHS model synchronizes all systems either NTP- or SNTP-compatible and uses a built-in Meinberg
integrated GPS radio clock as its reference time source and additionally includes an independent secondary
clock for enhanced plausibility checks, in order to ensure the correctness of the reference time and date.

If either the difference between the time telegrams of both radio clocks or the difference between the PPS
signals exceeds a limit of a few milliseconds (configurable), or if one of the clocks stops generating a time
telegram, then the hybrid radio clock stops generating any output signals, preventing the NTP time server
from spreading bogus time information on the network.

Both the primary and the secondary clock include their own high quality crystal oscillators which let the clocks
provide accurate time even if they are running free for a few days. Both clocks generate their own time
telegrams and high accuracy pulse-per-second (PPS) signals which are continuously compared against each
other. During normal operation the difference between the timing information of both clocks is very small, so
the verified timing signals are passed to the integrated NTP time server which makes that reference time
available on network.

Important note

This product is not available anymore and may have been substituted by another product. Of course
we continue to support existing units still in use. Please contact our [1]

support department

 for further

details.

This product has been substituted by: [2]

Key Features

- Synchronization of NTP and SNTP compatible clients
- Web based status and configuration interface [3]

(Demo)

 and console based graphical configuration

utility 

- Supported net protocols: IPv4, IPv6, NTP, (S)NTP, DAYTIME, DHCP, HTTP, HTTPS, FTP, SFTP,

SSH, SCP, SYSLOG, SNMP, TIME, TELNET

- Alert-Notification system of status change by Email, WinMail, SNMP or an external connected display
- Full SNMP v1,v2,v3 support with own SNMP-daemon for status and configuration and SNMP Trap

rev 2013.0704.1631

lanshs

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Summary of Contents for LANTIME/SHS/BGT

Page 1: ...lock include their own high quality crystal oscillators which let the clocks provide accurate time even if they are running free for a few days Both clocks generate their own time telegrams and high accuracy pulse per second PPS signals which are continuously compared against each other During normal operation the difference between the timing information of both clocks is very small so the verifi...

Page 2: ...of the clocks falls out of sync e g due to an antenna failure or other reception problems The clock changes its status to not synchronized and continues counting time based on its built in high accuracy chrystal oscillator Depending on the configuation it takes some days up to several weeks until the difference between the time signals exceeds the limit Since one of the radio clocks is still synch...

Page 3: ...e unit via Telnet or SSH The security related features of LANTIME time servers satisfy highest demands The time synchronization data can be reliably signed and secured by symmetric keys MD5 and the NTP autokey procedures This protects the clients against manipulated time and man in the middle attacks and allows them to verify that the NTP packets they received were send by the LANTIME Additionally...

Page 4: ...4VAC 50 60Hz Universal Serial Bus USB Ports 1x USB Port in front panel install firmware upgrades backup and restore configuration files copy security keys lock unlock front keys Single Board Computer i386 compatible 266Mhz CPU 64 MB RAM CF Card drive Operating System of the SBC Linux with nano kernel incl PPSkit Network protocols OSI Layer 4 transport layer TCP UDP Network protocols OSI Layer 7 ap...

Page 5: ...EEE status of the product This product is handled as a B2B category product In order to secure a WEEE compliant waste disposal it has to be returned to the manufacturer Any transportation expenses for returning this product at its end of life have to be incurred by the end user whereas Meinberg will bear the costs for the waste disposal itself Additional Information Additional information about th...

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