Level of access for each key typeGreat Grand Master Key = AAAGrand Master Key = AAMaster Key = ASub Master Key = BSub Keys = CGreat Grand Master KeyGrand Master KeyArea 1 (e.g. North Campus)Grand Master KeyArea 2 (e.g. South Campus)Master KeyBuilding 1Sub Master KeyBuilding 1Lecture Rooms 1-5& Studio Hall 1Lecture Room 1.01Lecture Room 1.02Lecture Room 1.03Lecture Room 1.04Lecture Room 1.05Studio Hall 1Sub Master KeyBuilding 1Lecture Rooms 6-10& Studio Hall 2Lecture Room 1.06Lecture Room 1.07Lecture Room 1.08Lecture Room 1.09Lecture Room 1.10Studio Hall 2Master KeyBuilding 2Sub Master KeyBuilding 2Lecture Rooms 1-5& Studio Hall 3Lecture Room 2.01Lecture Room 2.02Lecture Room 2.03Lecture Room 2.04Lecture Room 2.05Studio Hall 3Sub Master KeyBuilding 2Lecture Rooms 6-10& Studio Hall 4Lecture Room 2.06Lecture Room 2.07Lecture Room 2.08Lecture Room 2.09Lecture Room 2.10Studio Hall 4Master KeyBuilding 3Sub Master KeyBuilding 3Lecture Rooms 1-5& Studio Hall 5Lecture Room 3.01Lecture Room 3.02Lecture Room 3.03Lecture Room 3.04Lecture Room 3.05Studio Hall 5Sub Master KeyBuilding 3Lecture Rooms 6-10& Studio Hall 6Lecture Room 3.06Lecture Room 3.07Lecture Room 3.08Lecture Room 3.09Lecture Room 3.10Studio Hall 6Master KeyBuilding4Sub Master KeyBuilding 4Lecture Rooms 1-5& Studio Hall 7Lecture Room 4.01Lecture Room 4.02Lecture Room 4.03Lecture Room 4.04Lecture Room 4.05Studio Hall 7Sub Master KeyBuilding 4Lecture Rooms 6-10& Studio Hall 8Lecture Room 4.06Lecture Room 4.07Lecture Room 4.08Lecture Room 4.09Lecture Room 4.10Studio Hall 8Access Guide to Master Key SystemsCopyright © Master Key Systems (MKS) Ltd., All Rights Reserved