NTP & Clock Management System


Smith of Derby NTP Server

NTP (Network Time Protocol) is a standard protocol designed and used worldwide to synchronise computer clock times in a network of computers and clock systems. It is utilised by Smith of Derby through an NTP server to synchronise a network of our luxury clocks.

Application of NTP time systems is commonly used in universities campus sites, hospitals, large leisure complexes and trading offices, where precision clock time synchronisation is a necessity.

Feature summary

LAN 10/100 Mbit, RJ45 auto-sensing Dual LAN
Timing Protocols
NTP v2, v3, v4, SNTP v3, v4
NTP Peering
NTP Broadcast
NTP MD5 Authentication
NTP Requests / Second (typical) > 5000
Maximum Number of NTP Clients (typical) > 320,000
NMEA RS232 Output
Time Reference Options
12 Channel GPS Receiver High Sensitivity Indoor, Over- Determined Clock, Single Satellite Operation
LF - MSF (UK) Reference Clock
LF - DCF-77 (German) Reference Clock
Dual GPS and LF Radio Reference Clocks
Monitoring and Reporting
SNMP v1 / v2c Trap Alarms (Can be disabled)
System Logging (SysLog)
Remote System Logging (Remote Syslog)
GPS Satellites in View & Signal to Noise Ratio (SNR)
Configuration Protocols
HTTP (Web) / HTTPS (SSL Secure Sockets Layer)
SSH (Secure Shell), SCP (Secure Copy Protocol)
Console (RS232)
Oscillator Options
Standard Crystal Oscillator
High Stability GPS\LF Disciplined TCXO Oscillator
Timing (Typical)
GPS Accuracy 60 nsec
LF Accuracy 1-20 msec
NTP Accuracy (typical, GPS Synchronised) < 1 usec
24 Hour Holdover (GPS disciplined, typical @ 25C) <±4.3msec (1e10-7)
Buffered 1 PPS Output on BNC