Hi,
Yes it can manage not only IAP 115, any other model also. criteria is, all those IAPs should be in the same subnet (VLAN) and should have same Image code version.
Master will take care of updating Image in IAPs of the same platform, if any IAP of other platform is present, either need to be updated manually or should be done through central or Airwave.
Hope got some more clarity,
Please feel free for any further query on this.