GMR5000 Master Clock

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The GMR5000 is a time server that can reference a variety of timing sources and provide a range of outputs including NTP, PTP, SMPTE, and IRIG-B.  The internal modular design allows the unit to be factory-configured per the user’s requirements, giving flexibility while saving cost. The base model includes both NTP client and server functionality compatible with IPv4/IPv6 networks and offers Secure-Socket-Host (SSH) encryption for secure communications. 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 (Dual-port)
  • NMEA 0183 via RS-232 or RS-422/485
  • NENA Format 0, 1 and 8 via RS-232 or RS-422/485

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)
  • Synchronizing signals: PPS, PPM, PPH 
  • IEEE 1588 Precision Time Protocol
  • 10 MHZ Input (CMOS or Sinusoidal)

Outputs

Base Model

  • NTP server with 10/100 Mb Ethernet (Dual-port)
  • NMEA 0183 via RS-232 or RS-422/485
  • NENA Format 0, 1 and 8 via RS-232 or RS-422/485
  • 5V at 100mA Pulse Per Second (PPS)

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 100mA Programmable Pulse Output (PPO)
  • IEEE 1588 Precision Time Protocol
  • 10 MHZ Output (Sinusoidal)

 

Other Features

  • IPv4 and IPv6 compatible
  • SSH secure communication
  • SNMP with Masterclock MIB
  • MD5 authentication
  • Internal TXCO maintains time during loss of external sync within ± 3 seconds/year

Other Options

  • 13-Digit display (Date/Time or Day of year/Time)
  • Programmable relay closure, one event per day with SPDT dry contact relay
  • Optical Fiber LAN

High-Stability Oscillator Options

  • Internal high-stability OCXO oscillator ± 0.25 sec/year
  • Rubidium ooscillator ±1 mS/year

Power, Physical Dimensions, Operating Parameters

  • AC input (90-264VAC, 47-63Hz)
  • 18.9w x 1.750h x 5.174d in (48w x 4.445h x 13.14d) cm
  • Temperature: 0 to +60°C (32 to +140°F)
  • Humidity: up to 90%, non-condensing