[1] Another benefit of having the CSG™ [2] inside your network is that you can use the web interface to monitor all of the servers in your environment from the CSG™. The AACD™ Control Centre displays details on the status of each SSL and is colour coded depending on the status of the SSL: Active: CSR Created (and sent to the CA [3]); Awaiting Notification (from the CA to collect the Certificate); or Expired.
Links:
[1] https://www.digi-sign.com/downloads/download.php?id=aacd-digi-ssl-pdf
[2] http://www2.digi-sign.com/aacd/certificate+service+gateway
[3] http://www2.digi-sign.com/certificate+authority