User's Manual

SECTION III OPERATION
SM 7063 07/97 3-8
3.6 EMERGENCY BRAKE SWITCH
The
Emergency Brake Switch
is only operational if the CDU is operating in Two-Way mode and is
“Armed” to the End Unit ID code being displayed in the
ID Code Display
.
When the operator flips this switch, the CDU transmits the emergency braking command to the End
Unit. To help prevent unintentional activation, this switch is protected with a spring loaded RED switch
guard forcing the user to consciously select it. The switch itself is also spring loaded to return to the
"OFF" position when released.
3.7 SONALERT
The sonalert is used to alert and warn the locomotive operator of events or conditions needing
attention, and to indicate successful completion of certain tasks.
To indicate the successful completion of a task, such as the successful entry of the ID code, the
sonalert will beep once.
To indicate potential problems, such as an Alarm condition, the sonalert will beep five times.
The sound intensity of the sonalert is adjustable in four steps using the function menu item “Change
Loudness: # (of 4)”. Note that on CDU power-up, the default loudness is always set to maximum.