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GMR1000High-Precision, Multi-Function NTP & PTP Master Clock

6-Digit Front Display Panel

GMR5000 Master Clock
  • Compact design, mount multiple units in a single rack
  • Mission-critical Stratum 1 timing solution
  • Capability of synchronizing to GPS, GNSS, IRIG-B, or PTP reference
  • Internal-disciplined high-stability oscillator options allow for critical holdover resiliency
  • Optional modules provide flexible input/output signal support
  • SNMP v3 with custom MIB
  • Supports enterprise-grade PTP/NTP server application
  • Backward compatible with legacy signals
  • Trusted platform for the Federal Aviation Administration

GMR1000 Base Model

The GMR1000 is a compact time server that can sync to a variety of timing references and provide a range of outputs including NTP, IEEE1588v2 PTP, IRIG-B, SMPTE, 10Mhz, 1PPS and more. The base model includes both NTP server and client functionality compatible within IPv4 and IPv6 networks and offering AES256 SSH encryption for secure communications.

Using standard NTP polling rates, the device can support and synchronize hundreds of thousands of NTP clients. Optionally, the device can act as a IEEE 1588v2 PTP grandmaster or slave clock, time code generator, NENA time server, and more. Learn more about Master Clocks.

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GMR1000 Front

GMR1000 Back

Reference Documents

SpecificationsGMR1000 Master Clock


  • Multiple Satellite Synchronization Options
  • • GPS
  • • Galileo
  • • GLONASS
  • • BeiDou
  • + Various Augmentation Options
  • Closed-source firmware architecture
  • Configurable to meet DoD security requirements
  • Legally traceable time server for compliance auditing
  • Provides industry standard signals for IRIG, SMPTE, NENA, and other mission-critical groups
  • Made in USA - TAA Compliant

  • Base Model
  • NTP client with 10/100 Mb Ethernet
  • NMEA 0183 via RS-232
  • NENA Format 0, 1 and 8 via RS-232
  • Additional Options
  • GPS and GNSS receiver options
  • IEEE 1588v2 Precision Time Protocol
  • Time Code Option: SMPTE 24fps (Film), 25fps (EBU), 30fps and 29.97 drop frame
  • Time Code Option: IRIG-B0 (DCLS) and IRIG-B1 (AM)
  • Time Code Option: IRIG-A0 (DCLS) and IRIG-A1 (AM)
  • Time Code Option: IRIG-E0 (DCLS) and IRIG-E1 (AM)
  • Internal high-stability OCXO oscillator ±0.25 seconds/year
  • Synchronizing signals: PPS, PPM, PPH
  • 10MHz input (CMOS or Sinusoidal)

  • Base Model
  • NTP client with 10/100 Mb Ethernet
  • NMEA 0183 via RS-232
  • NENA Format 0, 1 and 8 via RS-232
  • Additional Options
  • IEEE 1588 v2 Precision Time Protocol
  • Time Code Option: SMPTE 24fps (Film), 25fps (EBU), 30fps and 29.97 drop frame
  • Time Code Option: IRIG-B0 (DCLS) and IRIG-B1 (AM)
  • Time Code Option: IRIG-A0 (DCLS) and IRIG-A1 (AM)
  • Time Code Option: IRIG-E0 (DCLS) and IRIG-E1 (AM)
  • Time Code Option: HAVEQUICK & NASA36
  • 5V at 20mA Pulse Per Second
  • 10MHz sine wave
  • Programmable Pulse Output (PPO)

  • DC input - threaded locking plug with external power adaptor
  • 24V-AC/DC (250mA)
  • 6.44 x 4.06 x 1.44 in (16.35 x 10.32 x 3.65 cm), 16 oz (453.6 g)
  • Temperature: 0 to +60°C (32 to +140°F)
  • Humidity: up to 90%, non-condensing

  • DB9 breakout adapter
  • Six-digit display
  • Rack mount kit
  • DIN mount available

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