The Norstar T24 KIM (Key Indicator Module) provides busy lamp field and direct station select. T7316E + T24 Key Indicator Module replace the M7324 + CAP combination. System powered by Business Communications Manager (BCM) or Norstar CICS/MICS - no auxiliary power needed. It can attach up to 4 T24 KIM to T7316E and is compatible with BCM R3.5 or CICS/MICS R6.1.