Dell PowerEdge T550 EMC Installation and Service Manual - Page 179

Power supply unit indicator codes

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Table 53. NIC indicator codes (continued) NIC indicator codes Condition Link indicator is green, and activity indicator is blinking Indicates that the NIC is connected to a valid network at its maximum green. port speed, and data is being sent or received. Link indicator is amber, and activity indicator is blinking Indicates that the NIC is connected to a valid network at less than its green. maximum port speed, and data is being sent or received. Link indicator is green, and activity indicator is off. Indicates that the NIC is connected to a valid network at its maximum port speed, and data is not being sent or received. Link indicator is amber, and activity indicator is off. Indicates that the NIC is connected to a valid network at less than its maximum port speed, and data is not being sent or received. Link indicator is blinking green, and activity is off. Indicates that the NIC identity is enabled through the NIC configuration utility. Power supply unit indicator codes AC and DC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows if power is present or if a power fault has occurred. Figure 184. AC PSU status indicator 1. AC PSU handle 2. Socket 3. Release latch Table 54. AC PSU status indicator codes Power indicator codes Green Blinking amber Not powered on Blinking green Blinking green and powers off Condition Indicates that a valid power source is connected to the PSU and the PSU is operational. Indicates an issue with the PSU. Indicates that the power is not connected to the PSU. Indicates that the firmware of the PSU is being updated. CAUTION: Do not disconnect the power cord or unplug the PSU when updating firmware. If firmware update is interrupted, the PSUs will not function. When hot-plugging a PSU, it blinks green five times at a rate of 4 Hz and powers off. This indicates a PSU mismatch due to efficiency, feature set, health status, or supported voltage. CAUTION: If two PSUs are installed, both the PSUs must have the same type of label; for example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of PowerEdge servers is not supported, even if the PSUs have the System diagnostics and indicator codes 179

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Table 53. NIC indicator codes (continued)
NIC indicator codes
Condition
Link indicator is green, and activity indicator is blinking
green.
Indicates that the NIC is connected to a valid network at its maximum
port speed, and data is being sent or received.
Link indicator is amber, and activity indicator is blinking
green.
Indicates that the NIC is connected to a valid network at less than its
maximum port speed, and data is being sent or received.
Link indicator is green, and activity indicator is off.
Indicates that the NIC is connected to a valid network at its maximum
port speed, and data is not being sent or received.
Link indicator is amber, and activity indicator is off.
Indicates that the NIC is connected to a valid network at less than its
maximum port speed, and data is not being sent or received.
Link indicator is blinking green, and activity is off.
Indicates that the NIC identity is enabled through the NIC
configuration utility.
Power supply unit indicator codes
AC and DC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The indicator shows if
power is present or if a power fault has occurred.
Figure 184. AC PSU status indicator
1.
AC PSU handle
2.
Socket
3.
Release latch
Table 54. AC PSU status indicator codes
Power indicator codes
Condition
Green
Indicates that a valid power source is connected to the PSU
and the PSU is operational.
Blinking amber
Indicates an issue with the PSU.
Not powered on
Indicates that the power is not connected to the PSU.
Blinking green
Indicates that the firmware of the PSU is being updated.
CAUTION:
Do not disconnect the power cord or
unplug the PSU when updating firmware. If firmware
update is interrupted, the PSUs will not function.
Blinking green and powers off
When hot-plugging a PSU, it blinks green five times at a rate
of 4 Hz and powers off. This indicates a PSU mismatch due to
efficiency, feature set, health status, or supported voltage.
CAUTION:
If two PSUs are installed, both the PSUs
must have the same type of label; for example,
Extended Power Performance (EPP) label. Mixing
PSUs from previous generations of PowerEdge
servers is not supported, even if the PSUs have the
System diagnostics and indicator codes
179