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Description

The GNU/Linux operating system of the LANTIME has been optimized to ensure a high level of security and reliability. 

A large LC display shows the state of the internal GPS receiver and the NTP subsystem. Three LEDs (green/red)
indicate the status of the three main components: Reference Time (GPS), Time Synchronization Service (NTP) and
Network (Link status). A fourth red LED is labelled ALARM and can be configured to signal any event that is covered by
the notification handling routines.

The configuration of the system can be done by using a standard web browser for accessing the extensive but
straightforward html interface. Alternatively a text based and menu driven setup utility can be started from the shell
prompt after logging into the unit via Telnet or SSH. 

Security Features
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 the whole LANTIME configuration can be done by using encrypted channels
(e.g. SSH, HTTPS or SNMPv3). Every unused/unneeded protocol can be disabled in order to reduce possible points of
attack.

SNMP Interface
In order to support network management systems the LANTIME time servers offer an extensive SNMP interface, which
can be accessed by SNMP V1, V2.c and V3. It allows the monitoring of all relevant system parameters (including
operating system parameters, network interface statistics, detailed GPS and NTP status information as well as the
complete system configuration) and can be used to alter the LANTIME configuration via SNMP set commands, too.

IPv6 Support
LANTIME time servers are designed to be deployed in IPv6 networks, the NTP time synchronization as well as the
configuration interfaces (Web-based, SSH and SNMP) comes with IPv6 support. You can assign several IPv6
addresses and the system supports automatic configuration by IPv6 autoconf. 

High precision Oscillators available

The LANTIME M300/MGR is equipped with a high precision oscillator "TCXO" (look at oscillator options for details) as
standard. The oscillator determines the holdover characteristics (e.g. when the GPS signal is disturbed or jammed). For
applications with higher accuracy requirements there are several oscillator options available.

Modular system architecture
Because of its modular system architecture it is possible to order a LANTIME M300/MGR time server with several
additional frequency-, serial string- and pulse outputs.

rev 2013.0704.1632

lantime-m300-mgr

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Summary of Contents for LANTIME M300/MGR

Page 1: ...averaging and a more accurate position solution The variety of possible output configurations makes this time server the premier choice for a broad range of mobile time and frequency synchronization applications Important note Produktgruppe Key Features Synchronization of NTP and SNTP compatible clients Web based status and configuration interface 1 Demo and console based graphical configuration u...

Page 2: ... or SNMPv3 Every unused unneeded protocol can be disabled in order to reduce possible points of attack SNMP Interface In order to support network management systems the LANTIME time servers offer an extensive SNMP interface which can be accessed by SNMP V1 V2 c and V3 It allows the monitoring of all relevant system parameters including operating system parameters network interface statistics detai...

Page 3: ...utputs Pulse Per Second PPS TTL level pulse width 200ms Accuracy of pulse outputs Depends on oscillator option Note TCXO IS NOT available with M600 Interface Two independent serial RS232 interfaces menu configurable Data format of interfaces Baudrate 300 600 1200 2400 4800 9600 19200 Baud Data format 7N2 7E2 8E1 8N1 8O1 Time telegram 3 Meinberg Standard Telegram SAT Uni Erlangen NTP NMEA RMC GGA S...

Page 4: ...cation layer TELNET FTP SSH incl SFTP SCP HTTP HTTPS SYSLOG SNMP Internet Protocol IP IP v4 IP v6 Network Autoconfiguration Support IPv4 Dynamic Host Configuration Protocol DHCP RFC 2131 IPv6 Autoconfiguration Networking AUTOCONF Network Time Protocol NTP NTP v2 RFC 1119 NTP v3 RFC 1305 NTP v4 RFC 5905 SNTP v3 RFC 1769 SNTP v4 RFC 2030 MD5 Authentication and Autokey Key Management Time Protocol TI...

Page 5: ...t 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 the Meinberg LANTIME famil...

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