To install a 750 W AC power supply in a switch, follow these instructions.
All installed power supplies must have the same airflow direction (front-to-back or back-to-front) and must match the airflow direction of the installed fan modules.
To prevent an electrical hazard, make sure that the AC power cord is not connected to the power supply before you install the power supply in the power supply bay.
Make sure that the AC power supply circuit is not overloaded. Use proper over-current protection, such as a circuit-breaker, to prevent over-current conditions.
Do not slam the power supply into the switch.
If power supplies are not installed in both power supply bays, be sure to install a cover over the unoccupied bay. Unoccupied bays must always be covered to maintain proper system ventilation and EMI levels.
The diagram below - Power Supply with Power Cord and Retainer Attached shows the power supply with the power cord and retainer in place.
Always make sure that the source outlet is properly grounded before plugging the AC power cord into the AC power supply.
To install a second power supply, repeat this procedure.
When you are finished, follow the steps in Powering up the Switch .