4.Make sure the cable is pushed up to the right side and then slide the power supply into the back of the concentrator as shown in Figure
Figure 2-10. Installed Backup Power Supply
Selecting the Power Supply Voltage
Before you plug in the power cord to the power connector on the power supply (and to the backup power supply, if you have one), you must verify that the voltage selector is correctly set for your country line voltage.
Caution: An incorrect voltage setting can damage the power supply.
1. Set the power switch to the Off (O) position.
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