Timing Fusion System

Robust Precision Timing Integrity

The Timing Fusion System box closed, a black box with visible input ports on the side.

The Timing Fusion System is a unique precision time integrity instrument that takes as inputs one or more sources of precision time (both free-running, uncoordinated clocks and clocks coordinated to a time system, such as UTC), and generates one or more precision timing outputs. This approach allows for true fusion of clock inputs, where all are used, rather than just the selection of one input. It also enables advanced timing integrity approaches to be implemented in a way that is not possible with a GPS-disciplined oscillator.  

Timing Fusion System software is not proprietary. The algorithms can be modified to achieve your unique needs. Whatever performance is required, the Timing Fusion System provides robust and resilient precise time and frequency to downstream systems. Guaranteed contamination free.  

The Timing Fusion System box open with various wires and components visible.

Configuration Options

  • Standard Kit

    Internal: GPS 1PPS, OCXO

    For users who want a minimal set of clocks to get started.

  • Standard + GNSS

    Internal: GPS 1PPS, OCXO

    External: GNSS 1PPS*

    For users who want pre-configured additional clocks in the timing fusion solution.

  • Standard + CSAC

    Internal: GPS 1PPS, OCXO

    External: CSAC

    For users who want pre-configured additional clocks in the timing fusion solution.

  • Standard + CSAC + Galileo

    Standard message formats are essential for interoperability. All types of PNT sensors and components from one system platform are easily shared or re-used in another.

*GNSS 1PPS comes pre-configured for Galileo, but receiver can be configured to use any/all GNSS signals (GPS, Glonass, Galileo, Beidou).

Boasting multiple flexible and configurable inputs and independent outputs

The Timing Fusion System box closed and from the other side.
The Timing Fusion System box open and top down with various wires and components visible.
The Timing Fusion System box open from an alternative angle.

Out of the Box

The Timing Fusion System will fuse together all of the included clocks, following the software-defined timing (SDT) approach, to generate the 1PPS (pulse per second)/10MHz and second 1PPS outputs, plus the following messages over USB:

  • Time-of-day message (NMEA format)

  • Custom time-of-day message, including UNIX time and output 1PPS covariance (accuracy) information

Timing Inputs & Outputs 

Inputs 

  • Box features 6 PPS inputs (either 50 Ohm or High Z)

  • 2 10MHz sine wave inputs

  • GPS active antenna input

  • *Not all inputs are used for configuration options listed

Outputs

  • Coherent 10 MHz/1PPS output 

  • 1PPS: (2V, 50 Ohm)

  • 10 MHz: (3V, 50 Ohm)

  • Second 1PPS output (2V, 50 Ohm)

Software

  • Software is preconfigured to fuse selected set of clocks “out-of-the-box.”

  • All software is provided and can be subsequently modified by you to accomplish your specific purposes.

Serial Communication

  • 4 USB-A ToD Serial inputs

  • 2 USB-C ToD Serial outputs 

  • NMEA style, GPZDA ToD messages 

  • Standard Ethernet port for SSH and LCM communication 

System Reference Clock (Internal)

  • 10 MHz sine wave Taitien NI-10M-2502 OCXO clock 

Additional Info

  • Requires 12V 2A (power supply provided)

  • Dimensions and weight: 19.5 cm x 14 cm x 6.5 cm, 3lb

  • 28 dB Gain Basic Active GPS Antenna operating at 1575.42 MHz using 3-5V DC

  • Connections on the system are BNC excluding GPS antenna which is SMA

  • System runs on Xilinx Arty Z7 FPGA

  • ESD resistant aluminum housing 

Order Your Timing Fusion System Today

Reach out to our team for more information about pricing and availability, or contact timing.devkit@is4s.com