GMR1000 Master Clock

The GMR1000 is a compact time server that can reference a variety of timing sources and provide a range of outputs including NTP, PTP, IRIG-B, and SMPTE. The base model includes both NTP client and server functionality compatible within IPv4 and IPv6 networks and offering SSH encryption for secure communications. Properly configured and using standard NTP polling rates, the device can support and synchronize hundreds of thousands of NTP clients. Optionally, the device can act as a PTP IEEE1588 grandmaster or slave clock, time code generator, NENA time server, and more.

 


Specifications

Inputs/Reference Sources

Base Model

  • NTP client with 10/100 Mb Ethernet

  • NMEA 0183 via RS-232 or USB

  • NENA Format 0, 1 and 8 via RS-232 or USB

  • Time may be set by USB or Ethernet

Options

  • GPS or GPS/GLONASS receiver options

  • Time Code

    • SMPTE 24fps (Film), 25fps (EBU), 30fps and 29.97 drop frame

    • IRIG-B0 (DCLS) and IRIG-B1 (AM)

    • IRIG-A0 (DCLS) and IRIG-A1 (AM)

    • IRIG-E0 (DCLS) and IRIG-E1 (AM)

  • Internal high-stability OCXO oscillator ± 0.25 seconds/year

  • Synchronizing signals: PPS, PPM, PPH

  • IEEE 1588 Precision Time Protocol

Outputs

Base Model

  • NTP server with 10/100 Mb Ethernet

  • NMEA 0183 via RS-232 or USB

  • NENA Format 0, 1 and 8 via RS-232 or USB

Options

  • Time Code

    • SMPTE 24fps (Film), 25fps (EBU), 30fps and 29.97 drop frame

    • IRIG-B0 (DCLS) and IRIG-B1 (AM)

    • IRIG-A0 (DCLS) and IRIG-A1 (AM)

    • IRIG-E0 (DCLS) and IRIG-E1 (AM)

  • 5V at 20mA Pulse Per Second and Programmable Pulse Output (PPO)

  • 10MHz sine wave

  • IEEE 1588 Precision Time Protocol

Other Features

  • Programmable relay closure

  • 1 event/day with NO/NC dry contact relay

  • IPv4/IPv6 compatible

  • SSH communication

  • MD5 authentication

  • Internal TCXO maintains time during loss of external sync within ± 3 seconds/year

Power, Physical Dimensions, Operating Parameters

  • 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

Other Options

  • DB9 breakout adapter

  • Six-digit display

  • DIN mount available