The attached sector diagrams give the location of the sectors relative to each other:
- Sectors 1–16 are located in the saucer section
- Sectors 17–27 are located in the drive section
- Sectors 23–27 are restricted service areas
Sectors primarily support departments in making specific location references to the whereabouts of personnel, equipment, and/or damage.
- Sectors 1–8 starboard (right)
- Sectors 9–16 port (left)
- Sectors 17–27 span starboard to port (cross-ship)
Use the deck listing to identify the correct deck for the room in question.
The Interior Spaces Allocation And Coordination System (ISAACS, pronounced EYE-zəks) is the automated system responsible for managing all interior spaces aboard the ship. Excalibur is the first Vesta-class starship to be equipped with ISAACS; other ships of this class are equipped with a predecessor system called RAMS (Room Allocation Management System).
To ensure that room numbering is consistent shipwide, all departments shall routinely audit their assigned spaces and report any erroneous or obsolete signage with Operations via ISAACS. Departments must complete an initial signage audit within 72 hours of being allocated internal space, and conduct subsequent audits not less frequently than annually.
It is expected that interior spaces will be reconfigured from time to time, to meet evolving departmental and personnel needs. Department chiefs are responsible for reporting any reconfigurations that may necessitate the creation, deletion, or reordering of room numbers within a given deck and sector. Prior approval is typically not required, provided the reconfigurations comply with hardware, volume, and mass limits.
