Differences between license for limited and full

We are putting together a quote for WDE, and time is critical.  The price list notes two versions of managed Drive Encryption (Formerly Known as WHOLE DISK ENCRYPTION in v10.2 and prior)

Can someone please provide the details of the differences between these two licenses?  What the customer gets with each and doesn’t get with limited.

   SYMC DRIVE ENCRYPTION WITH ENCRYPTION SERVER LIMITED BY PGP 10.3 XPLAT PER DEVICE BNDL STD LIC                       

And

  SYMC DRIVE ENCRYPTION WITH ENCRYPTION SRVR BY PGP 10.3 XPLAT PER DEVICE BNDL STD LIC

Thank You!

Mark