Compaq 3000 manual Controller Shelf Status LEDs

Chapter 3. Installation and Maintenance

3.4Controller Shelf Status LEDs

The Controller Shelf is equipped with two front-panel LEDs (see Figure 3–14) that monitor the following error conditions:

∙A shelf blower that is not operating

∙An over-temperature condition

∙A dc power problem

∙External fault conditions

∙Controller faults

When the shelf is operating properly, the green power LED is on and the amber shelf fault LED is off. If a dc power problem develops, the power LED goes out indicating a malfunction.

The amber shelf status LED is normally off. If an error condition occurs, the LED comes on and an audible alarm sounds notifying the operator that an error condition exists. Once the user has been notified and is aware of an error, the alarm disable toggle switch enables the operator to disable the audible alarm by using the switch.

Figure 3–14 Shelf Status LEDs

Fault LED	DC Power
(Amber)	LED (Green)

SHR-1063

EK–SMCPQ–UG. C01 3–27