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Dell PowerEdge M820 Systems 사용자 설명서
Rev 1.0
2.4

LED Indicators

2.4.1 System LEDs

The system status LEDs indicate whether the PTM is receiving power from the chassis, and the
state of the PTM.
There are two system LEDs on the end of the module. The LED indications and meanings are
explained in the figure and table below.
This LED can be blue or Yel-
low. A fault is indicated when
the Yellow LED is blinking.
See Table 4.
Table 4 - PTM states and LED configurations:
Indication
Blinking Blue

2.4.2 Port LEDs

The PTM has two I/O LEDs per port. The I/O LEDs are located on the I/O panel. The green LED,
when lit, indicates that the driver is running and a valid physical connection between nodes exists.
If the green LED is blinking, it indicates a problem with the physical link. The yellow LED when
lit, indicates a valid data activity link, this is the logical link. The yellow LED illuminates when the
10
Figure 5: Indicator LEDs
LED
Status
OFF
OFF
BLINKING BLUE
ON BLUE
ON or BLINKING
Yellow
ON or BLINKING
Yellow
The IO Module is on and
ready when this LED is
green.
Module Status
Power
OFF
ON
Boot in Progress
PTM not ready
ON
The CMC is identifying
the newly installed PTM
ON
PTM is on and operating Normally
ON
FW update is in progress or
Fault in System
Self-diagnosed
OFF
Fault in System
CMC-detected
Installation and Basic Operation
OFF