actually i suspect btw the use of Exit button and Master button.
might be due to the the circuit being linked to only the Exit
button, and not the Master..
yup quite true actually
today i board 26L on 167... when SL press master button to
close, the exit door no announcement but when only exit door is
open & want to close, the exit door got announcement
btw, i just check & i didnt know SMB26L is a cameo bus
lol