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PTP270PEX:
IEEE1588-2008 slot card for computers (PCI Express)

The PTP270PEX provides sub-microsecond accuracy for computers. The card has been designed to add ultra precise time stamping capabilities to your data acquisition and measurement applications.
This Product is replaced by PTP / NTP Time Signal Converter

Key Features:

  • PCI Express Interface
  • IEEE 1588-2008 (PTP V2) compatible ordinary clock
  • Pulse per second and 10 MHz output
  • Memory Mapped I/O time reads for high access rates
  • RS232 interface
  • IRIG-B/AFNOR time code generator
  • Plug and Play
  • Driver software for all popular operating systems

PTP270PEX - the best choice for adding a highly accurate time base to your servers or workstations over a simple Ethernet connection.

The time source for the card is a IEEE1588 grandmaster clock like the LANTIME M600/GPS/PTP. In the past, sub-microsecond accuracy in PCs could be achieved with GPS synchronized devices only but now with PTP there is no need for complex antenna cabling to every PC.

The module PTP270PEX acts as a slave device in IEEE 1588-2008 (PTPv2) compatible networks and can be used to synchronize the computer‘s system time to the PTP time received from a grandmaster clock like LANTIME M600/GPS/PTP. The integrated single board computer (SBC) is running the PTP stack and provides a PCI Express interface that is compatible with other Meinberg PCIe devices. In this way the board PTP270PEX can be operated by using the standard Meinberg driver package and there is no need to run a PTP software on the computer.

Note: PTP270PEX can not be used as a standard network interface card!

The on-board Time Stamp Unit (TSU) integrates in a FPGA (Field Programmable Gate Array, programmable logic device), monitors the data traffic on the MIIinterface between the PHYceiver (physical connection to the network) and the Ethernet controller (MAC) of PTP270PEX. If a valid PTP packet is detected, the TSU takes a time stamp that is read out by the single board computer running the PTP stack.

After decoding a valid time information from a PTP Master, the system sets it‘s own PTP seconds and nanoseconds accordingly. The PTP offset calculated by the PTP driver software of the single board computer is used for adjustment of the master oscillator of PTP270PEX.