The code you mentioned states that the smoke detectors in the apartment need to be on the same electrical system as the building smoke detectors. It does not appear to state that triggering of the common area smoke alarm triggers individual apartment smoke alarms, although it does appear to imply visa versa.

Regardless, I would encourage anyone in this building (or any other) to double check witht he SFD that their building passed the last fire inspection. Moreover, older structures are often times not governed by newer codes grandfathered in).