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attachment 2 section i ? technical specifications commuter coach ...

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2.9.3.7 VISUAL AND AUDIBLE WARNING DISPLAY<br />

Page 23<br />

ATTACHMENT 2<br />

Critical systems or components shall be monitored with a built-in diagnostic system. This diagnostic<br />

system shall have visual and audible indicators. The diagnostic indicator lamp panel shall be located in<br />

clear sight of the driver but need not be immediately in front of the operator and shall incorporate LED<br />

tell tale lights. The intensity of indicator lamps shall permit easy determination of on/off status in<br />

bright sunlight but shall not cause a distraction or visibility problem at night. An audible alarm shall<br />

sound when certain malfunctions are detected by the diagnostic system. The audible alarm shall be<br />

loud enough for the driver to be aware of its operation and is inclined to discontinue operation of the<br />

<strong>coach</strong>. Malfunction warnings and other indicators listed in Figure 2 shall also be supplied on the <strong>coach</strong>.<br />

Space shall be provided on the panel for future additions of no less than 4 indicators as the capability<br />

of onboard diagnostic systems improves.<br />

All diagnostic indicators shall be simultaneously tested by the activation of master switch.<br />

VISIBLE INDICATOR<br />

BACK-UP INDICATOR (a)<br />

FIGURE 2: OPERATOR'S STATUS PANEL INDICATORS<br />

AUDIBLE ALARM<br />

BACK-UP ALARM

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