Thunderbolt PTP GMC / GM330

PTP Grandmaster Clock

More details

  • Multi-Constellation (GPS, GLONASS, Beidou, Galileo, NavIC, QZSS)
  • Dual Frequency (L1 & L5)
  • 5ns (1-sigma) time stability
  • Holdover:  ±1.5us over 24 hours
  • Anti-Jamming & Anti-Spoofing
  • Usable as a PTP GM or Boundary Clock
  • Inputs: GNSS, 1588-PTP, PPS, SyncE
  • Outputs: 1588-PTP, NTP, SyncE, PPS, ToD, 10MHz
    • 4x 1G/10G SFP+ 
    • 2x 10/100/1000 BASE-T RJ45
    • VLAN support 
    • IPv4 & IPv6 
  • Supports SyncE over Optical Fiber & Copper
The Protempis Thunderbolt™ PTP GM330 Grandmaster Clock is designed for a variety of communication and next-gen data networks including private 4G/5G, O-RAN, small cell, and others that require phase synchronization. 

The product features an integration of:

  • GNSS time source

  • PTP synchronization

  • 40-gigabit line rate switching

  • 4 optical/copper 10-gigabit ports and 2 1-gigabit ethernet ports

PTP Sync Highlights:  

  • 128-4K+ clients, depending on PTP profile & transaction rate

  • All major PTP profiles supported

GNSS Highlights:

  • Dual band (L1 & L5) enhances stability and security (spoofing & jamming resilience).

  • Provides continuous availability of UTC traceable time for phase synchronization

  • Employs industry-leading Protempis GNSS performance, and world class holdover technology



  • ½ 1U Rack

  • Power:  AC, DC, or POE+(option, coming soon)

  • Supports indoor and outdoor deployments with an extended operating temperature range (-40 to +70 C)


Data Sheet for the Protempis Thunderbolt GMC GM330

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Thunderbolt PTP GMC / GM330Availability Q1 2024