NTP Hardware - Time Server for different applications

Meinberg offers some standard types of NTP time servers which meet a wide range of requirements in network time synchronization. Additionally, individual time server solutions can be assembled depending on the customer's specific requirements. Examples for customized solutions can be found in the table below.

Standard Options: LANTIME NTP Time Server

NTP Time Server	M320 NTP Server flat 19" / 1U chassis	Railmount Time Server for switch cabinet	Modular NTP Time Server 19" / 3U chassis
Time Server Functions
NTP Server	Standard Feature	Standard Feature	Standard Feature
NTP Broadcasts	Standard Feature	Standard Feature	Standard Feature
NTP Client for additional NTP Server (Redundancy)	Standard Feature	Standard Feature	Standard Feature
NTP SNTP Server	Standard Feature	Standard Feature	Standard Feature
NTP MD5 Encoding	Configurable	Configurable	Configurable
NTP Access Restrictions	Configurable	Configurable	Configurable
RFC-868 TIME Server	Standard Feature	Standard Feature	Standard Feature
RFC-867 DAYTIME Server	Configurable (siehe #1)	Configurable (siehe #1)	Configurable (siehe #1)
Possible NTP Client Sync. Accuracy (rps = NTP requests per second)	1-10 ms up to 6,000 rps	1-10 ms up to 6,000 rps	1-10 ms up to 6,000 rps
Network Connection
Ethernet 10/100Base-T	Standard Feature	Standard Feature	Standard Feature
FDDI	Option	Option	Option
TCP/IP Network Protocols
HTTP(S)	Standard Feature	Standard Feature	Standard Feature
IEEE 1588 - FTP	Standard Feature	Standard Feature	Standard Feature
DHCP	Standard Feature	Standard Feature	Standard Feature
Telnet	Standard Feature	Standard Feature	Standard Feature
SSH	Standard Feature	Standard Feature	Standard Feature
SNMP Traps with MIB	Standard Feature	Standard Feature	Standard Feature
User Interface / Management
Keypad / LC- or VF-Display	Standard Feature	Standard Feature	Standard Feature
Status LEDs	Standard Feature	Standard Feature	Standard Feature
HTTP Statistic Pages	Standard Feature	Standard Feature	Standard Feature
HTTP Control	Standard Feature	Standard Feature	Standard Feature
Telnet Login	Standard Feature	Standard Feature	Standard Feature
SSH Login	Standard Feature	Standard Feature	Standard Feature
RS-232 Terminal	Standard Feature	Standard Feature	Standard Feature
Email Notification at pre-defined Events	Standard Feature	Standard Feature	Standard Feature
SNMP Traps send at pre-defined Events	Standard Feature	Standard Feature	Standard Feature
Syslog Messages redirect to external Syslog-Sever	Standard Feature	Standard Feature	Standard Feature
Security
Network Locking	Standard Feature	Standard Feature	Standard Feature
Keypad Locking	Option	Option	Option
RS-232 Locking	Option	Option	Option
Options for single Time References
GPS (12-Channel)	Standard Feature	Standard Feature	Standard Feature
GNSS (L1 72-Channel)	Option	Option	Option
GPS optional: Rubidium Extension	extra Chassis extra Chassis	extra Chassis extra Chassis	extra Chassis oder M900 M900 or extra Chassis
DCF77	Option	Option	Option
IRIG	Option	Option	Option
Time String via RS-232, PPS	Option	Option	Option
Options for multiple redundant Time References
GPS + DCF77 or IRIG	Option	not available	Option
GPS + Rubidium + DCF77 or IRIG	not available	not available	Option
DCF77 PZF + IRIG	not available	not available	Option
Additional Outputs and Output Signals
Pulse Per Second (PPS)	Standard Feature	Standard Feature	Standard Feature
10MHz Frequency Output	Standard Feature	Standard Feature	Standard Feature
Pulse Per Minute (PPM)	Option	Option	Option
2.048 MHz Frequency Output	Option	Option	Option
IRIG	Option	Option	Option
Error Output	Standard Feature	Standard Feature	Standard Feature
Serial Time String via RS-232	Standard Feature	Standard Feature	Standard Feature
Miscellaneous
Redundant Power Supply	Option	Not Available	Option
Form Factor	1U Rack	Alu-Case	3U Rack
¹ The Daytime service is intentionally turned off because it is poorly suited for time synchronization. The service can be unlocked.

Customized Time Server Solutions

Zusätzlich zu den Standard Timeservern baut Meinberg auch kundenspezifische Versionen. Zum Beispiel: In addition to standard time servers, Meinberg also produce customer-specific systems. For example:

SHS (Secure Hybrid Systems)
Two independent sources of time (i.e. GPS and DCF77) can be examined and supervised by a monitoring circuit. If the plausibility is ensured, the examined time is handed over to a NTP time server, which distributes the reference time to the network clients.

If the plausibility check fails then the supervisory circuit raises an alarm signal and disconnects both time sources from the NTP server to prevent the NTP server from distributing a spoofed time.
Example: Secure NTP Time Server
A redundant set of time sources which feed several individual NTP time servers on different isolated networks. For security reasons there's no router between the individual networks but the same reference time is a available in the networks.

Standard Options: LANTIME NTP Time Server

NTP Time Server

Time Server Functions

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Configurable

Configurable

Configurable

Configurable

Configurable

Configurable

Standard Feature

Standard Feature

Standard Feature

Configurable

Configurable

Configurable

Network Connection

Standard Feature

Standard Feature

Standard Feature

Option

Option

Option

TCP/IP Network Protocols

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

User Interface / Management

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature

Standard Feature