2.1.2 Indicator LEDs
The three indicator LEDs on the main chassis control panel provide system status information.
LED
Status Information
PWR
On when the system is powered up and the power supply voltages are within operating
specifications. A blinking power indicator signifies a power supply fault has been detected.
BATT On when computer is powered by BBU.
RUN
On when the CPU is running and the system terminal is not in console program mode.
2.2 CPU PCB INDICATOR
The CPU PCB has a power up LED indicator (Figure 2-2) that lights when the power-up testing is complete and
stays on until the next power-up. If there is a board fault, this lamp will not turn on.
LED
FS- 12703
Figure 2-2. Central Processor Unit PCB Fault LED
2.3 VOLTAGE NONREGTJLATED UNIT (VNR)
The VNR has one indicator (Figure 2-3). The VNR LED is located on the VNR PCB, behind the VNR grill. The
green LED lights continuously when the system is powered on.
DGC CONFIDENTIAL - INTERNAL USE ONLY
2-3
043-003621
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