DuraTime Rack Mount Master Clock Package

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Minimum Quantity:
Maximum Quantity:
Two (2) - 19" x 3.5" x 5.5"
15 Business Days
6 Digital Time
1 Year
Oscillator Type:

Redundant Master Clocks is the key to keeping the system running no matter what.

The DuraTime Rack-Mount Master Clocks are the focal point of the system. They can also receive time updates through an NTP time server or an optional GPS receiver.  The time is then broadcast to all secondary devices once per second. The DuraTime Master Clock System features dual independent clocks and transmitters.  If the primary master fails, the Secondary (back-up) Master automatically resumes normal operation.  A free supervision program is available that includes a pop-warning and audio alert for enhanced reliability.

Included with each RC102 unit is:

  • 1 Primary Master Clock
  • 1 Back-up Master Clock
  • 2.4 GHz transceiver
  • AC/DC Power Adapter
  • 10 Ft. Cat 5 Cable


Site surveys:

  • A site survey might be required for large facilities to determine complete coverage
  • Small facilities don't require a site survey


  • Each master clock comes standard with an OCXO Oscillator accurate to .06 PPB
  • Synchronizes time across your campus
  • Automatically adjust time for DST
  • Rechargeable backup battery backup
  • 19"W x 3.5"H x 5.5"D or 2 Units High


  • Accurate to 1 second over 20 years
  • Synchronizes time across your facility or campus using multipath technology
  • Automatically adjusts time for daylight savings time (DST)
  • Supports redundant master clock operation
  • Ability to have redundant master clocks that automatically switch between primary and secondary.
  • Provides time updates to secondary devices 86,400 times per day
  • 2.4 GHz, Direct Sequence, Spread Spectrum Technology
  • Operates on the Industrial, Scientific and Medical band
  • DuraTime clocks advanced digital radio technology has 16 times the transmit power of competing clock systems.
  • Rule based method for setting DST, makes it easy to update Government DST rule changes
  • Designed to operate on Ethernet standards IPv4 and IPv6
  • No FCC license required
  • AES 128 bit data encryption for secure, reliable communications
  • Optional Rubidium Oscillator accurate to 20 PPT (Parts Per Trillion)
  • Ideal replacement clock system for expensive to maintain hardwired clocks
  • Optional Rubidium oscillator is available that is accurate to 20 PPT (Parts Per Trillion)
  • Energy efficient operation
  • Assembled in the U.S.A.
  • Patents Pending
  • FCC part 15.247 certified, CE certified


  • Time Base Backup Battery Life:   10 years between changes
  • Synchronized Accuracy:     10 Milliseconds
  • Stand Alone Accuracy:   +/- .06 minute per year
  • Average Current:    100 mA @ 110 VAC :  50 mA @ 220 VAC
  • Operating Frequency:    2.4 GHz Direct Sequence, Spread Spectrum
  • Radio Band:    Industrial, Scientific and Medical (ISM)
  • Data Encryption:    AES 128 Bit
  • Display:     12 and/or 24 hour format
  • Compliance:    FCC Part 15.247
  • Case Dimensions:    19”W x 3.5”H x 5.5D”
  • Case:    Steel
  • Color:    Black

Redundant Master Clock Configuration Available

  • Greatly improved reliability
  • Automatically switches to backup master clock if primary time sync is lost
  • Simultaneous master clock operation allowed


  • DOCXO Oscillator that is accurate to 0.2 PPB (parts per Billion) or .006 seconds per year or about 1/10th of a second over 20 years.
  • RBXO Oscillator that is accurate to 0.05 PPB (parts per Billion) or .0016 seconds per year or about 1/10th of a second over 60 years.


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