Chapter 4 Maintenance and Upgrade Procedures for the ASA
Removing and Installing the Power Supply
Step 4 Connect the power cable. If you are installing two power supplies for a redundant configuration, plug each one into a power source (we recommend a UPS).
Step 5 Power on the appliance if you powered it off to replace the only power supply.
Step 6 Check the PS0 and PS1 indicators on the front panel to make sure they are green. On the back panel of the appliance, make sure the power supply indicator on the bottom of each installed power supply is green. (See Figure
Figure 4-19 Back Power Supply Indicators
PS0PS1
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Installing the DC Input Power
Warning The covers are an integral part of the safety design of the product. Do not operate the unit without the covers installed. Statement 1077
Warning When you install the unit, the ground connection must always be made first and disconnected last. Statement 1046
Warning Before performing any of the following procedures, ensure that power is removed from the DC circuit. Statement 1003
Warning Only trained and qualified personnel should be allowed to install, replace, or service this equipment. Statement 1030