Brandywine - NFS-220 Network Ready GPS Time and Frequency Standard

Brandywine - NFS-220 Network Ready GPS Time and Frequency Standard
  • CD-GPS-060 Have Quick/1PPS input references
  • 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 Sine wave outputs
  • Have Quick time code
  • Advanced Oscillator Control Algorithm

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The NFS-220 is a low cost precision time and frequency standard that uses GPS for use in WI-FI, Wi-Max, satellite communications, telecommunications, and military communications. This frequency standard is the newest of Brandywine's GPS Synchronizing clocks and utilizes a high performance 16 channel receiver with automatic position-averaging that enables the best use of GPS when operating in a fixed location. The NFS220 includes 4 low phase noise 10MHz outputs, 4 1PPS outputs with individual 600PS propagation delay compensation, IRIG, Have Quick, and NTP outputs.

Advanced Network-Ready Time and Frequency Standard

The NFS-220 from Brandywine Communications is the most advanced network-ready time and frequency standard available using Global Positioning System (GPS).Below are some of the great features of this new frequency standard:

  • High performance GPS disciplined Time/Frequency standard
  • Ethernet Interface for management and control
  • Network Time Protocol (NTP)
  • Multiple 1PPS outputs with individual delay compensation
  • Multiple Low Phase Noise 10MHz outputs with software programmable level
  • Time Code outputs including Have Quick, IRIG A, IRIG B, IRIG E, IRIG G
  • Sync to GPS or to Have Quick/1PPS per ICD-GPS-060
  • Choice of internal disciplined TCXO, OCXO or Rubidium Oscillator

The NFS220 is fitted with an internal back up oscillator that is continuously calibrated to GPS using an advanced algorithm, providing optimal frequency control of the oscillator. This ensures that the highest time and frequency accuracy is maintained if no satellites can be tracked, and ensures an ultra stable, low noise frequency reference.

The NFS220 utilizes a high performance 16 channel GPS receiver. An automatic position-averaging feature enables the best use of GPS when operating in a fixed location. The NFS220 is fitted with an internal back up oscillator that is continuously calibrated to GPS using an advanced algorithm, providing optimal frequency control of the oscillator. This ensures that the highest time and frequency accuracy is maintained if no satellites can be tracked, and ensures an ultra stable, low noise frequency reference.

The basic NFS220 includes a precision OCXO frequency standard, while TCXO and Rubidium oscillators are optionally available to giving a variety of price and performance options. An option with a low noise OCXO phase locked to a rubidium is also available, combining the low noise characteristic with the OCXO with the long-term stability of a rubidium.

The NFS220 provides “at a glance” status indication via front panel LED’s and can be integrated with other management systems using Ethernet and serial ports.

The NFS220 provides simple integration into military platforms by allowing synchronization from Have Quick time code, which is available on military SA-ASM GPS receivers such as the DAGR or PLGR. The NFS220 also generates Have Quick and 1PPS signals compatible with ICD-GPS-060.

The integrated Ethernet interface provides Network Time Protocol (NTP) synchronization of other connected computers.

In addition to NTP, the NFS220 Ethernet interface contains a built in web server that allows the NFS220 to be controlled using a standard web browser such as Internet Explorer. Simple Network Management Protocol (SNMP) allows easy integration of the NFS220 with industry standard network management systems.

The NFS220 provides three 1PPS time mark outputs. A unique feature allows precisely controlled delays to be inserted into these outputs to compensate for cable and other propagation delays. Compensation delay is independent for each output and has Serial time code outputs are provided to allow time synchronization to be distributed to computers, displays, and other equipment requiring precision time. Two outputs are dedicated to Have Quick time code. Two outputs (one modulated, one DC level shift) may be user selected from IRIG A, IRIG B, IRIG E, IRIG G.

Four low phase noise 10 MHz sine wave outputs from the disciplined oscillator are provided. Signal amplitude is software settable.

All outputs are provided with activity detectors. Loss of any output is indicated by means of a individual front panel alarm LED as well as through the network interface or a discrete alarm output.

More Product Information

Brandywine - NFS-220 Plus - GPS Time & Frequency Standard
  • 16 Channel GPS Receiver or ICD-GPS060 Have Quick/1PPS input references
  • High Visibility Time of Year Display
  • Choice of Disciplined Oscillator
  • High Stability Time and Frequency outputs. o 1U 19” rack mount
  • Network Interface for remote management and NTP server
  • Three 1PPS outputs with propagation delay compensation
  • Mutiple time code outputs (IRIG B, A, E, G)
  • Four 10 MHz Sinewave outputs
  • Have Quick time code
  • Advanced Oscillator Control Algorithm

Brandywine - QFS-106 Free Running GPS Frequency Standard
  • High stability OCXO or rudibium oscillator
  • 6 individually buffered outputs
  • Low phase noise outputs buffers

Brandywine - OSA-3230 Cesium Clock - Atomic Frequency Standard
  • Allan deviation σ(τ) = 2.7x10-11 T-1/2 for long life version and σ(τ) = 8.5x10-12 T-1/2 for high performance version
  • Front or Rear access connectors
  • 3U high (133mm / 5.24'') — less than 200mm depth, compatible with ETSI and 19'' standards
  • Accuracy better than ±1x10-12 / ±5x10-13 for high performance version
  • 10 MHz low noise direct output
  • Programmable 1 / 5 / 10 MHz TTL output
  • 10 years warranty on cesium tube (3 years for high performance version)
  • Redundant DC power supply inputs
  • Remote control and monitoring via RS232 (fully manageable locally and remotely using SyncView Plus management system

Brandywine - HPTS Modular Time & Frequency System
  • Modular Timing System
  • Flexible
  • Upgradeable
  • Redundant
  • Hot Swappable Modules
  • High Accuracy
  • Network-Centric
  • Rugged
  • Environmentally Qualified
  • Automatic Propagation Delay Compensation
  • Flexible input reference – GPS, Have Quick, IRIG B

Brandywine - IDC-100 Network Time Device
  • Uses Network Time Server to synchronize computers and other devices
  • Programmable serial message compatible with almost any time display
  • Browser based user interface for easy setup
  • Compact size and low cost
  • IRIG B input reference
  • LED colons indicate GPS lock status

Brandywine - FTSU-100 Time and Frequency Distribution and Transfer Switch
  • Frequency and time outputs
  • Low phase noise frequency output
  • 1PPS output
  • Hitless fequency switching 

Brandywine - Advanced FTSU-100D Frequency / Time Distribution Amplifier
  • Network Enabled Distribution Amplifier
  • Low Phase Noise Reference Frequency Outputs
  • Fault Alarm Output
  • 1U 19" Rack Mount
  • Frequency Synthesizer Option
  • Hitless Switching of Reference
  • Programmable Amplitude
  • Propagation Delay Compensation

Brandywine - PTS-SAASM - GPS SAASM based network ready master clock with disciplined Rb Oscillator
  • GSP disciplined atomic clock
  • Network time server
  • Dual redundant version available
  • Complete remote network control using standard web browser
  • SA-ASM GPS Receiver
  • 10MHz, 1PPS, Irig-B, serial and time codes
  • Timing accuracy < 40ns rms to UTC 

Brandywine - TFD-8000 Highly reliable, extremely flexible Time and Frequency Source
The TFD8000 is composed of a chassis/backplane and a large library of plug-in features that include:
  • Frequency Synthesizers
  • SA-ASM or CA code GPS receivers
  • Network Time Protocol (NTP) Time Server
  • Status Alarm Monitor
  • Quartz, Rubidium, Cesium Oscillator choices
  • Time Code Outputs
  • Dual/Triple redundancy with Automatic Switchover
  • Hot Swappable Modules
  • 1-5-10 MHz Outputs
  • T1/E1 Frequency Outputs