Seagate Exos E 4U106 Hardware Installation And Maintenance Manual page 27

2,000W PSU
The 2,000W PSU voltage operating range is nominally 200V-240VAC, and the input frequency operating range is
50-60 Hz. The dimetric rear orientation in
located on the enclosure rear panel. Also remove the stabilizer bar before inserting or removing a PSU.
Module LED
PSU Status LED (bitonal):
Figure 12 LEDs: 2,000W PSU – rear panel
Multiple power supply unit modules
The 4U storage system includes two hot-swappable PSUs that provide redundant power control for the system so
that if one module fails, the other maintains the power and enclosure operation is not affected while the faulty PSU
is being replaced. See FRU Replacement Time Limit
section "Removing a PSU module" (page 75)
removed to get access to PSUs.
IMPORTANT: Operation of the enclosure with any modules missing will disrupt the airflow, and the drives will
not receive sufficient cooling. It is essential that all slots are fitted with PSUs prior to powering on the enclosure.
Figure 12 shows the PSU aligned for insertion into either PSU slot
PSU OK (green) PSU fault/failure (amber/blinking
amber)
(Table
for replacement instructions. Note the slide-rail crossbar needs to be
PSU oriented for use in rear panel slot
LED behavior states
12) for maximum allowable time to replace FRUs. See
Overview of rear panel LEDs
PSU Status LED
Power off (Off)
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