Item Name Icon Description
• SC220: Up to 24 2.5-inch hard drives
SC200/SC220 Expansion Enclosure Back-Panel Features and Indicators
The SC200/SC220 back panel provides controls to power up and reset the expansion enclosure,
indicators to show the expansion enclosure status, and connections for back-end cabling.
Figure 17. SC200/SC220 Expansion Enclosure Back Panel Features and Indicators
Item Name Icon Description
1 DC power indicator
• Green: Normal operation. The power supply
module is supplying DC power to the expansion
enclosure
• Off: Power switch is off, the power supply is not
connected to AC power, or has a fault condition
2 Power supply/cooling fan
indicator
• Amber: Power supply/cooling fan fault is detected
• Off: Normal operation
3 AC power indicator
• Green: Power supply module is connected to a
source of AC power, whether the power switch is
on
• Off: Power supply module is disconnected from a
source of AC power
4 Power socket (2) — Accepts a standard computer power cord.
5 Power switch (2) — Controls power for the expansion enclosure. Each
power supply/cooling fan module has one switch.
6 Power supply/cooling fan
module (2)
— Contains a 700 W power supply and fans that provide
cooling for the expansion enclosure.
7 Enclosure management
module (2)
— EMMs provide the data path and management
functions for the expansion enclosure.
26
About the SC4020 Storage System
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