• syn1588® PCIe NIC


Oregano Systems syn1588® PCIe NIC is a PCI Express Gbit network interface card with IEEE1588 hardware support. A PC equipped with the syn1588® PCIe NIC receives highly accurate time (<10 ns) independent from network utilization and CPU load without real-time requirements for the node’s operating system.


The syn1588® PCIe NIC acts basically as a standard 100/1000 MBit/s Network Interface Card (NIC). Besides the standard function of sending and receiving Ethernet packets, the syn1588® PCIe NIC includes dedicated hardware to implement high accuracy clock synchronization following the IEEE1588 standard.


The syn1588® PCIe NIC includes a full-featured IEEE1588 hardware clock as well as complex timestamping hardware. All time critical elements of an IEEE1588 system are embedded in the syn1588® PCIe NIC thus removing all timing constraints from the software. There are no real-time requirements for the operating system or the software stack. Due to its special structure, the CPU load for the required IEEE1588 stack (e.g. Oregano Systems syn1588® PTP Stack) is negligible.


The syn1588® PCIe NIC had been re-designed to board Revision 2.3 observing the full compatibility on function level. The re-design was required to deal with the excessive lead times of electronic components we are faced with in the whole industry. We took the chance to update the clocking infrastructure on the board to achieve an even better accuracy and stability.

syn1588® PCIe NIC – System Features

  • clock synchronization accuracy better than 10 ns
  • local hardware clock and optionally synchronized system clock
  • timestamping of
    • user-defined Ethernet packets
    • external (hardware) events
    • internal (software) events
  • optional interrupt on timestamp event
  • hardware support for dense timestamp event
  • PTP Master and  PTP Slave operation
  • generation of
    • programmable frequency
    • 1 PPS
    • pseudo GPS data stream
    • IRIG-B
  • on-board jitter-cleaner PLL allowing generation of synchronized clean, accurate high-speed clocks
  • synchronization in PTP Master mode to an absolute time reference (e.g. GPS receiver)
  • high-stability oscillator option
  • software for Windows and Linux

syn1588® PCIe NIC - FAQ


This FAQ document summarizes frequently asked questions and their answers when using the  syn1588® PCIe NIC for the first time. Please check this document in case of any issues or unintended behaviour of your system prior contacting the syn1588®  support.


syn1588® PCIe NIC – Application Notes



Debugging & Support


syn1588® PCIe NIC – Technical Features


The syn1588® PCIe NIC allows to easily create a standard-compliant  IEEE1588 node. For this both


  • hardware (the syn1588® PCIe NIC)
  • and software (the syn1588® PTP Stack with drivers)

are required. The syn1588® PCIe NIC is plugged into your PC or server. Now, the drivers have to be installed. Finally, the syn1588® PTP Stack has to be invoked on your system to complete the IEEE1588 node. Note, the syn1588® PCIe NIC comes with a binary run-time license of the syn1588® PTP Stack.



  • 1-lane PCI Express low-profile card (version 2.0, compatible with 1.1)
  • 100/1000 MBit/s Ethernet NIC
  • standard copper network or SFP type fiber interface
  • sophisticated CPU interface removing timing constraints from the control software (allows using non-real-time operating systems)
  • two user programmable input/output signals on SMA connectors on PCI bracket
    (trigger, 1 PPS, period, event)
  • two more user programmable input/output signals available internally
  • Generation of user-defined periodical signals (frequencies)
  • Generation of user-defined a-periodical signals (single events)
  • Generation of 1PPS signal and IRIG-B data stream
  • Timestamping of dense external hardware events
  • On-board jitter cleaner PLL for generation of accurate, high-speed clock signals (up to 156 MHz)
  • Optional external clock input that drives the syn1588® hardware clock  (ExtClk option)
  • User programmable time stamper for Ethernet packets
  • Oregano Systems’ patented 1-step timestamping
  • VLAN and IPv6 support for PTP packet processing including 1-step operation
  • TCXO oscillator (better than 1 ppm) to improve stability & accuracy
  • Optionally high-stability OCXO oscillator (better than 0.1 ppm) to further improve long-term stability & accuracy
  • driver software for Windows and Linux
  • syn1588® PTP Stack run-time license included (for Windows and Linux

syn1588® PCIe NIC – Applications

Distribute accurate time to IEEE1588 slaves

PCs equipped with the syn1588® PCIe NIC synchronize their local hardware clock with an accuracy of 10 ns or better to the absolute time information distributed by an IEEE1588 grandmaster.



syn1588® PCIe NIC acting as PTP Slave


Implement an IEEE1588 grandmaster

A PC equipped with the syn1588® PCIe NIC may act as an IEEE1588 Grandmaster on your network. The syn1588® PCIe NIC may synchronize its local hardware clock to an external absolute time reference like e.g. a GPS receiver.



syn1588® PCIe NIC acting as PTP  Master

!  syn1588® PCIe NIC– Ordering & Support

Remote Management

Oregano Systems provides a utility the – syn1588® PTP Management Software – free of charge that allows users to remotely manage all IEEE1588-2008 nodes in a network.


Ordering Information

Please check the Application Note "Ordering syn1588® PCIe NICs" describing the available options for the syn1588® PCIe NIC and their respective ordering number.


Please note that we generally recommend a high quality OCXO oscillator for all IEEE1588 master applications.


You may directly contact Oregano Systems for a quotation or for placing an order. If required we will forward your order or request for quotation to our regional distributor.



Looking for recent software updates? Please contact Oregano Systems‘ support. We will provide you your required updates via our secure download server (SFTP server)

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