3 Upgrading AERS signal configuration

• Upgrading AERS signal configuration from 8.1.1.1 to 9.0
  You can upgrade an AERS interactive signal configuration from 8.1.1.1 to 9.0.
• Upgrading AERS signal configuration from 9.0 or later to 9.x
  The required upgrade for AERS signal management is done as part of the Oracle Empirica Signal 9.x upgrade.