NTP Hardware - Time Server for different applications

NTP Hardware Overview

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 at the end of this document.

Standard Features and Options - Meinberg NTP Timeserver


	M600/M300 Timeserver Slim 19" chassis	Railmount housing Timeserver for DIN mounting rail	BGT Timeserver 19" in 3U housing
Timeserver Features
NTP Server
NTP Broadcasts
NTP Client for Additional NTP Server (Redundancy))
NTP SNTP Server
NTP MD5 Encryption	configurable	configurable	configurable
NTP Access Restrictions	configurable	configurable	configurable
RFC-868 TIME Server
RFC-867 DAYTIME Server	configurable (see #1)	configurable (see #1)	configurable (see #1)
Potential NTP Client Sync. Accuracy (rps = NTP requests per second)	1-10 ms up to 10000 rps	1-10 ms up to 10000 rps	1-10 ms up to 10000 rps
Network Connection
Ethernet 10/100Base-T
FDDI	optional		optional
TCP/IP Network Protocols
HTTP
FTP
DHCP/BOOTP
Telnet
SSH
SNMP Traps with MIB
User Interface / Management
Keypad / LC Display	Keypad LCD 2x40 chars. (M300) VFD 256x64 points (M600)	No Display Web Interface - Terminal	Keypad / LC Display
Status LEDs
HTTP Status Pages
HTTP Control
Telnet Login
SSH Login
RS-232 Terminal	optional
Email Notification on Predefined Events
SNMP Traps Sent on Predefined Events
Syslog Messages Redirectable to External Syslog Server
Security
Network Lockout
Keypad Lockout	optional		optional
RS-232 Lockout	optional	optional	optional
Optionen für einzelne Zeitreferenz
GPS (6 channels)
GPS option: Rubidium Frequency Standard
DCF77
IRIG
Timestring via RS-232, PPS
Multiple Time Reference Options
GPS + DCF77 or IRIG
GPS + Rubidium + DCF77 or IRIG
DCF77 PZF + IRIG
Additional Output Signals
1 Pulse Per Second (PPS)
1 Pulse Per Minute	nur M600
10 MHz Frequency (not if IRIG input only)
2.048 MHz Frequenzausgang (nicht wenn nur IRIG Eingang)	optional		optional
IRIG	optional M600 Standard	optional	optional
Alarm Contacts (only if GPS included)	optional
Serial Timestring via RS-232 (with GPS only)
Miscellaneous
Redundant power supply
Form factor	1U Rack	Aluminum profile housing	3U Rack
¹ The DAYTIME service has been intentionally disabled since it is not well suited for time synchronization. However, the service can be enabled on demand.

Individual Time Server Solutions

In addition to the standard devices Meinberg also assembles customized versions of the time servers depending on the customer's specific requirements.

For example: SHS (Secure Hybrid System)
Two independent sources of time (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.
For example: MOAC (NTP Time Server Blade System)
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.

:: top ::