Are there ESD suppressors circuits on USB lines?

      Are there ESD suppressors circuits on USB lines?

      I'm wondering if there are any ESD supressors on the NetDCUA5, for the USB lines (both master & devices).

      After looking at the Starter kit schematics, I've seen you added PGB1 SOT23 to protect the lines, so I strongly suppose that there is no additional protection on the NetDCUA5, but I need you to confirm.
      There are no ESD protection diodes on the NetDCU.
      The ESD protection must be close to the USB connector on the base board.
      F&S Elektronik Systeme GmbH
      As this is an international forum, please try to post in English.
      Da dies ein internationales Forum ist, bitten wir darum, Beiträge möglichst in Englisch zu verfassen.