Operating instructions

Timing Chart
Total Time Lapse: 1 Seconds½
Press
Horn
Short &
Firm
½ Sec.
Pause
½ Sec.
Pause
Press
Bell
Short &
Firm
Press
Bell
Short &
Firm
7
R-17 Subway Set with Proto-Sound® 2.0
Proto-Sound 2.0 Operating Instructions
This manual contains the operating instructions for Proto-Sound 2.0 in conventional mode
only. Instructions for accessing DCS command mode features accompany the DCS Remote
Control System equipment (sold separately.)
Activating Proto-Sound 2.0 Conventional Mode Features
Proto-Sound 2.0 features are activated by sequences of Bell and Horn button pushes
described below. Please read the full descriptions of each feature before using it. To use
these buttons to activate features rather than to blow the horn or ring the bell, you should
press the buttons firmly, but rapidly with a ½-second pause between button presses. You
may need to practice your timing to make this work smoothly.