Power Core RP v2 can be synced to PTP, Wordclock, MADI, or the internal clock. However, if the RAVENNA/AES67 ports are used, Power Core RP v2 must either be synchronized to PTP arriving from the streaming network (via the front panel RAVENNA/AES67 ports) or Power Core RP v2 must be configured as a PTP master.

By default, Power Core RP v2 is configured to sync to PTP on Domain 127. This configuration can be modified temporarily using the Web UI, or permanently using ON-AIR Designer. 

The following sync reference options are possible:

  • PTP - arriving from the streaming network (via the front panel RAVENNA/AES67 ports).
  • Wordclock – connected to WCLK IN on the front panel.
  • MADI – incoming MADI from front panel port 1 (or port 2 if redundancy is configured and port 2 is active). Note that other MADI ports cannot be used for synchronization.
  • Internal Clock – set to 48kHz or 44.1kHz.


Please note: if Power Core has been synchronized once to a PTP master, then it will NOT automatically switch to another sync source but try to re-establish its connection to the external PTP master. While doing this, it becomes PTP master itself, and uses the pre-aligned internal clock as the reference.

Checking the Sync Status

The sync status can be checked either from the device (using the STATUS LED) or from the Power Core Web UI.

Using the STATUS LED

The STATUS LED (on the front panel) indicates the health of the device and sync status. If the LED is blinking at regular intervals, then the device is working properly and the LED color indicates the sync status.


Blinking STATUS LEDMeaning
Blue ↔ OffSynchronized to PTP master
Yellow ↔ OffTrying to sync to PTP master
Red ↔ OffSynchronized to internal clock
Green ↔ OffSynchronized via Wordclock
Magenta ↔ OffSynchronized via MADI
Red ↔ whiteDevice is PTP Master, sync source = internal
Green ↔ whiteDevice is PTP Master, sync source = Wordclock
Magenta ↔ whiteDevice is PTP Master, sync source = MADI


Using the Web UI

On the right of the "System → States" page (in the Web UI), you will see information about each of the Sync sources.

The columns show whether the sync source is Enabled (in the configuration), Present (a valid signal has been detected), and Active.

The color coding indicates:

  • Blue = sync source is enabled, present and active.
  • Green = sync source is enabled and present, but not currently active.
  • Red = sync source is enabled but not present.
  • Light Grey = sync source is disabled in the configuration.

The Prio Sequence box shows the priority of the external sync sources as defined by the configuration - in our example, PTP, Wordclock and then MADI.

Using the Sync Output

The WCLK OUT connector on the front panel provides an output of the system reference. e.g. to provide a wordclock signal to other non-PTP devices.