Brandywine Frequency Reference Unit (FRU)

Product Overview:

  • Ultra-stable GPS Disciplined Frequency Reference
  • 10 Independent 10MHz outputs
  • 1U chassis
  • Meets MIL-STD-188-164A stability requirements
  • Frequency accuracy to 1 x 10-12
  • Dual Port NTP Server

More
The FRU is a state of the art, high-precision frequency standard capable of outputting ten isolated precision 10MHz frequency reference outputs. The FRU uses an internal GPS receiver to control a precision oscillator with accuracy up to 1 x 10-12 and excellent short term stability.  The FRU meets the frequency stability requirements of MIL-STD- 188-164A for SHF terminals.  A particular feature of the FRU is the ultra-high isolation (>100dB) between the 10MHz outputs, eliminating interaction between 10MHz outputs when they are loaded/unloaded. The FRU incorporates a high-sensitivity 12 channel GPS receiver.
 
Dual Ethernet ports are used for both monitoring/control of the FRU using Simple Network Monitoring Protocol (SNMP) as well as providing Network Time Protocol (NTP) to clients. A Brandywine supplied user application may also be used to provide a Graphical User Interface to the FRU. The FRU is available is a number of configurations to support specific applications. A mobile application version features a special vibration isolated oscillator that provides isolation of the reference source from portable generator induced phase noise. The High Performance version uses a rubidium oscillator.  A SAASM GPS receiver is available for military applications.

For more information please contact us

More Product Information

  • Ultra-stable GPS Disciplined Timing Reference
  • 5 buffered IRIG outputs
  • 5 buffered 1PPS outputs
  • 10MHz frequency reference out
  • 1U chassis
  • Timing accuracy to 1 x 10-12
  • Dual Port NTP Server

  • 1U 19” rack mount
  • Dual Redundant hot swappable Power Supplies
  • Dual GPS Disciplined Modules
  • Optional redundant NTP outputs

  • 1U 19” rack mount
  • Dual Redundant hot swappable Power Supplies
  • Dual GPS Disciplined Modules
  • Dual NTP Output Ports

  • Network enabled frequency
  • Distribution amplifier
  • Dual requency inputs with audio
  • Failover
  • Low phase noise referece 
  • Frequency Outputs
  • Programmable per channel amplitude
  • 1U 19" rack mount
  • Redundant hot swappable power supplies

  • 5 MHz or 10 MHz Outputs Available
  • Reference Frequency Input Option
  • Auto Changeover with Ref. Input Option
  • Low Phase Noise Outputs
  • Twenty four Outputs
  • Front Panel Status Indicators
  • Fault Discrete Inputs
  • Compact 1U, 19" Rack Mount

  • 16 Channel GPS receiver or ICD-GPS-060 have Quick/1PPS input references
  • High visibility time of year display
  • Choice of disciplined oscillator
  • High Stability time and frequency outputs. 1U 19" rack mount
  • Network Interface for remote management and NTP server
  • Three 1PPS outputs with propagation delay compensation
  • Multiple time code outputs (IRIG B, A, E, G)
  • Four 10 MHz Sinewave outputs
  • Have quick time code
  • Advanced oscillator control algorithm

Brandywine's OSA-5581C GPS is a GPS synchronization receiver and distribution unit specifically designed to eliminate bit errors and slow transmission rates.  Flexible, modular, and a fully redundant synchronization solution, the OSA-5581C is for fixed (SDH/ SONET) and mobile (TDMA, CDMA, GSM, 3rd generation) telecom network applications.  All critical parts in the OSA-5581C, including the GPS input & holdover unit, can be duplicated to ensure high availability.

  • Dual inputs with manual or automatic switchover
  • 24 individually buffered outputs
  • Pulse rates from 1ppm through 10MPPS available

  • High stability OCXO or rudibium oscillator
  • 6 individually buffered outputs
  • Low phase noise outputs buffers

Brandywine Communications

Brandywine Communications is the premier supplier of ultra-precise GPS and time code based Time and Frequency products. Offering next generation solutions for telecom, government/ aerospace & defense, power utilities, and public safety, Brandywine has a solution for your critical timing need.

Brandywine's Products

Our product list include Frequency Standards, GPS Clocks, Network Time Servers and NTP Servers using GPS, plug-in timing cards such as PCI cards for bus level applications, GPS Frequency standards, GPS Master Clocks, Time and Frequency Systems, Time Displays and Time Code equipment.

Brandywine is proud to offer SAASM GPS and cesium clock solutions for military timing applications with products that offer complete master clock solutions and are qualified for airborne, shipboard, and mobile land applications. Our GPS time and frequency standards and our GPS clocks with time code support a wide range of time code formats including IRIG B, IRIG A, IRIG G, and Have Quick. Brandywine is also known for customizing their time and frequency products to give their customers the perfect solution to their timing needs.

Brandywine also has the largest selection of bus timing cards with over 200 options to customize the board to fit your need. Cards such as PCI and VME cards have quick delivery and can be customized with popular options such as IRIG-B and GPS.

Brandywine now offers network solutions, both wireline and wireless telecommunication solutions for this fast paced growing need. Products such at IEEE-1588 PTP Grandmasters and slaves as well as BITS Timing Signal Generators such as the OSA-5548C. Brandywine has joined forces with Oscilloquartz, a world-wide leader in telecom equipment, to offer the latest technology and excellent service for the telecommunications world in the U.S. and Canada.

Brandywine is continuously on the cutting edge of technology and offers the industry's broadest range of solutions for customers requiring precise time and frequency.

Brandywine Classics, a division of Brandywine Communications, applies theirtechnology and creative design to produce striking, reliable, and accurate analog and digital clocks for your every need. These include tower clocks, street clocks, and canister clocks. Brandywine Classics can also upgrade existing analog clocks with today’s technology.  All their time displays offer SNMP management for easy maintenance and use.

Technical Support - email us or call 714-755-1050

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