Seagate Exos X 4006 Series Hardware Installation And Maintenance Manual page 101

LED
Type AC fault
Color Amber
On*
Off
Off
State
On
Off
Flashing
An important feature of the storage enclosure design is redundancy. The enclosure will maintain continuous operation during
the replacement of a single PCM, as long as it is within the time limit of 5 minutes, since removal of a PCM significantly reduces
airflow in the storage enclosure.
CAUTION Use only power cords supplied in the installation kit or those that meet product specifications.
CAUTION Adhere to power source and power connection requirements to avoid harm to equipment.
Only connect the power cooling module (PCM) to power sources that comply with product specifications and labels.
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Always remove all power connections before you remove a PCM from the storage or expansion enclosure.
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CAUTION Do not remove covers from any FRU. There is a danger of electric shock inside. Return the FRU to your
supplier for repair.
CAUTION If you remove any FRU while the storage enclosure is powered up, you must replace it with a tested, good
spare within the allotted time for that FRU. If you do not replace the FRU and, when applicable, fully close the related drawer
within the identified time limit, you void the product warranty and the storage enclosure might overheat, causing equipment
failure and possible data loss.
101 Chapter 10 In-service field maintenance for 2U enclosures
PCM OK Fan fault DC fault
Green Amber Amber
Off
Off On*
On Off
On Off On*
Off On* Off
Off On*
Flashing Off
Off Flashing
Status
N/A
AC power not present on either PCM
AC power not present on this PCM
AC power present, power switch is on; PCM functional
PCM fan speed is out of tolerance
PCM fan fault
PCM hardware fault: over temperature, over voltage, over current
PCM is in standby mode
Firmware update to PCM in progress