NTP & PTP GPS Network Time Servers

GPS Time Servers for Network Time Synchronization

Synchronizing time is crucial for any network - from logging events and transactions to improving the consistency and accuracy of time throughout your network.  Many devices on a network have the ability to be a time server, but are they all created equal?  No, definitely not.

With many devices on a network that all show the time, how can you tell what the "right" time is and how can synchronized and accurate time be served throughout my network?  Some networks rely on a public time server, from NIST or ntp.pool.org to serve time.  However, using a public time server comes with several caveats, including questions of network security, reliability if the internet goes down, and accuracy with latency of external network transmissions.  Some networks may use a single device within the network as its reference time source to solve the issue of synchronization, but that does not ensure accuracy with a reliable time source.  Since time is at the center of your network, accuracy, reliability, and synchronization are critical.  TimeMachines has two Stratum 1 GPS network time servers that solve the common issues with accuracy, reliability, and time synchronization within a network.

So how does a GPS time server work?  Satellites from the Global Positioning System orbit the Earth and carry very stable atomic clocks.  Each satellite continuously transmits an RF signal with time and position information.  The TimeMachines GPS network time server has an antenna to receive the time and position information from multiple GPS satellites that orbit the Earth to calculate time with sub-millisecond accuracy.  Then, depending on the time server, either NTP or PTP network timing protocols are used to distribute that time to the various clients throughout your network.  Not only is such a high level of accuracy possible with a GPS server, but it also achieves time synchronization throughout your network without security or reliability concerns.

NTP vs. PTP: Which GPS time server do I need?

Already know what you need?  Scroll down to make your selection or CLICK HERE NOW!

If you are still not sure, we've compiled a feature comparison to help you parse out the differences between our GPS time server models to see which one best meets your requirements.  The TM1000A is a simple NTP only GPS time server.  The TM2000 models have both NTP and PTP capabilities, as well as an internal oscillator to maintain accurate time in the case of a GPS signal loss.  While the TM2000A is no longer available, it has been replaced with the next generation TM2000B.  The TM2000B has all the same great features and functionality of the TM2000A, but has additional processing to improve the holdover accuracy.  We have been listening to our customers, and the TM2500B is coming soon (Fall 2020) with some additional outputs that have been requested!  All of our GPS time servers are durable, accurate, and made in the USA!

TimeMachines Time Server Comparison
Features:TM1000ATM2000ATM2000BTM2500B
Source of Time ServedUS GPS satellitesUS GPS satellitesUS GPS satellitesUS GPS satellites
Stratum LevelStratum 1 (GPS)Stratum 1 (GPS)Stratum 1 (GPS)Stratum 1 (GPS)
NTP requests per second>350>750>750>750
NTP AuthenticationNOMD5/SHA1MD5/SHA1MD5/SHA1
Manual Time SettingNOYESYESYES
Peer NTP UpdatesNOYESYESYES
SNMP ManagementNOV2/V3V2/V3V2/V3
Web-Based SetupYESYESYESYES
Network Interface Speed10/10010/100 + HW Time Stamp10/100 + HW Time Stamp10/100 + HW Time Stamp
Time Protocols SupportedNTP (v1-v4)NTP (v1-v4)/PTP v2NTP (v1-v4)/PTP v2NTP (v1-v4)/PTP v2
Internal Osciallator/Holdover Time SourceNOOCXO 20ppbOCXO 20ppbOCXO 20ppb
Improved Holdover AccuracyN/ANOYESYES
Precision Time Protocol,
Unicast and Multicast
NOYESYESYES
Linux Embedded OSNOYESYESYES
GPS Lock Requirement2D3D (optional 2D)3D (optional 2D)3D (optional 2D)
NMEA OutputYESNOYESYES
1 PPS OUTPUTYESNONOYES (if 10 MHz output is not used)
10 MHz OUTPUTNONONOYES (if 1 PPS output is not used)
Verizon eFemto CompatibleNONONONO

  • NTP Time Server with GPS

    GPS NTP Network Time Server (TM1000A)

    $299.99

    GPS NTP Network Time Server (TM1000A)

    $299.99

    The TM1000A is a simple NTP GPS network time server. It is a cost-effective solution that makes Stratum 1 time synchronization possible across your network.

    Included with EACH TM1000A purchase:

    5V Power Supply, GPS Patch Antenna, Quick Set-up Guide


    Extended Warranty Pricing/Details

    * Extended warranty is NOT available for International Orders *

    In stock (can be backordered)

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  • GPS NTP+PTP Network Time Server (TM2000B)

    $499.99

    GPS NTP+PTP Network Time Server (TM2000B)

    $499.99

    The TM2000B is the latest release in the TM2000 NTP/PTP GPS time server product line with improved holdover accuracy, but the same price, features, and reliability of the TM2000A. Time serving accuracy is key, and that is what you’ve come to expect from TimeMachines!

    Included with EACH TM2000B purchase:

    12V Power Supply, GPS Patch Antenna, Quick Set-up Guide


    Extended Warranty Pricing/Details

    * Extended warranty is NOT available for International Orders *

    In stock (can be backordered)

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  • GPS NTP+PTP Network Time Server with 10Mz Reference Frequency Output (TM2500B)

    $749.99

    GPS NTP+PTP Network Time Server with 10Mz Reference Frequency Output (TM2500B)

    $749.99

    The TM2500B is the newest addition in the NTP/PTP GPS time server product line with the same great features, improved holdover accuracy, and reliability of the TM2000, but includes additional reference output capabilities that our customers have requested. Either a 1PPS or a 10MHz reference signal output can be obtained from the single BNC connector on the TM2500. Time serving accuracy is key, include some great features, and reference output, and TimeMachines delivers a quality product at a very reasonable price for your network infrastructure!

    Included with EACH TM2500B purchase:

    12V Power Supply, GPS Patch Antenna, Quick Set-up Guide, 10MHz test report


    Extended Warranty Pricing/Details

    * Extended warranty is NOT available for International Orders *

    TM2500 available for purchase in August, anticipated to be shipping in mid-August.

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TM1000A WARRANTY

time servers / wifi poe clocks

time servers / wifi poe clocks