T550 Multi-GNSS Dual-LAN NTP Server with TCXO

TimeTools T550 time server is a very accurate, Stratum-1 Multi-GNSS referenced Network Time Protocol Server in
a 1U rack-mountable enclosure. The built-in 32 channel timing receiver provides concurrent multi-constellation
reception of GPS, GLONASS, BeiDou, Galileo*1 for improved reliability and redundancy.

The T550 also features Dual Ethernet ports and a high-stability TCXO oscillator, which provides extended Stratum1
holdover during loss of GNSS signal lock.

The T550 provides an accurate time reference to computer networks of any size and can accurately synchronize
any NTP or SNTP compatible system.


T550 Multi-GNSS Dual-LAN NTP Server with TCXO

Unit Price: GBP 1150.00 \ EUR 1350.00 \ USD 1570.00

Price Includes: T550 Multi-GNSS NTP Server Appliance, Multi-GNSS Timing Antenna, Antenna Mount, 30m Cable, 6-Year Warranty.

PDF Download T550 Datasheet


  • NTPv4 Stratum-1 GPS\Multi-GNSS Network Time Server.
  • Multi-GNSS concurrent reception of GPS, GLONASS, BeiDou and Galileo*1 for improved reliability and redundancy.
  • High-stability TCXO oscillator provides extended Stratum-1 holdover during loss of GNSS signal lock.
  • GNSS accurate to 15 nanoseconds (GPS Locked).
  • NTP accurate to 3 microseconds (GPS Locked).
  • Synchronize in excess of 100,000 clients at default NTP polling frequency.
  • Dual 10/100 Mbit auto-sensing, auto-MDIX Ethernet ports.
  • IPv4 and IPv6 Internet Protocols.
  • Integrated universal AC mains input PSU.
  • Made in UK, with 6-year warranty and free lifetime support.


Network timing, measurement and synchronization.
Synchronize Microsoft Windows, Linux, servers, workstations and network infrastructure.
Automation Systems, SCADA, Network Monitoring and Control Systems.
CCTV, DVR and Video Management Systems (VMS).
Access Control Systems (ACS).
Master clock for NTP synchronized clock systems.
Accurately synchronize time critical processes to a traceable source of time inside your firewall.

Customer References and Testimonials

A large number of prestigious organisations from around the world trust TimeTools for their synchronization requirements. Here is a small selection:

Rolls Royce, Lockheed Martin, Shell, Siemens, Nokia, NASA, Bank of England, BAe Systems, British Telecom, Motorola, Coca-Cola, BBC, Inland Revenue, US Army Corps and more.

Just installed our first TimeTools NTP Server. We were quite surprised about the craftsmanship and quality of the product. The software seems to be engineered very well too. We were able to complete the set-up within a time frame of one hour from first power on to full configuration – and we wrote the documentation for our configuration in parallel. We are using GPS and three ntp.org pools for fail-over reasons. Did some fail-over tests too – everything worked as expected. If anyone asks me for advice on a NTP time server, my answer will be: go to TimeTools and place your order. Thank You very much.
Matthias Petz, ICT Systems Engineer and Project Manager
Strüby Konzept AG, Sweden

Product Codes

T550-00 Multi-GNSS Dual-LAN TCXO NTP Server Appliance.

Scope of Supply – What is Included

T550           Multi-GNSS Dual-LAN TCXO NTP Server Appliance.

T-3740       Pole Mounting Multi-GNSS Antenna .
MT4-GPS   Antenna Mount.
TCX-030    30m (100 ft) RG58 Cable.

IEC Power Lead.
RS232 Serial Console Cable.
Quick Start Guide.
CD containing user-guide, installation guide and white-papers.

Optional Accessories

TCX-010      10m RG58 Cable.
TCX-050      50m LMR195 Equivalent Cable.
TCX-100      100m LMR400 Equivalent Cable.

Custom cable lengths available on request.

SPP-GPS     Multi-strike maintenance-free surge suppressor
T-AD200-8 GPS Amplifier – 20db


PDF Download T550 Datasheet
PDF Download Quick Start
PDF Download T1201-01 T300 T550 Hardware Guide
PDF Download T1202-01 Antenna Installation Guide
PDF Download T1300-01 T-Series User Guide

All prices Ex-Works.

*1 Hardware ready: a firmware update is required to enable the Galileo constellation.

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