What do the different beeps from the DCS100 mean? 1 Beep - DCS powered on successfully or sent programming command 3 Beeps - Loco address has been “purged” due to non-use 4 Beeps - Route nesting error or too many entries cascaded 5 Beeps - Booster short circuit shutdown. Fault alarm 6 Beeps - Command Station already present in system 7 Beeps - CMOS battery low condition 8 Beeps - Memory ECC/checksum fail. Auto reset (no action) 9 Beeps - DCS transmit failure. LocoNet fault 16 Beeps - Software timeout failure. Auto reset (no action) Continuous soft clicks mean low input supply voltage.