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Install a DC Power Supply
3. Place the cable clamp around the power cord, and squeeze the ring until the cable is snug in the
clamp, as shown in
Figure 19: Placing the cable clamp around the power cord
4. Slide the clamp until it is snug against the power cord plug, as shown in
Figure 20: Sliding the clamp until it is snug against the power cord plug
5. Connect the other end of the cord to an AC power source.
Both LED lights for the AC power supply units show steady green when connected and operating
normally.
Install a DC Power Supply
Up to four 1,600 watt power supply modules can be installed in the Extreme 9920 chassis. Each power
supply is self enclosed and vents directly to the rear of the chassis. If the chassis has more than two
power supplies installed, power supplies are hot-swappable. The power supply slots are situated in the
four contiguous slots starting from the left-hand side to the bottom and the rear of the chassis. They are
numbered PSU 1 through PSU 4.
Note
Do not remove the cover from the fifth, or last, power supply slot on the far right to the
bottom and the rear of the chassis.
42
9920 Network Packet Broker Hardware Installation Guide
Figure
19.
Important
The chassis does not have an AC power switch. After you connect the power cord to an AC
power outlet, the switch powers up immediately.
Install the Device and the Components
Figure
20.
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