Install a 300 W or 750 W Internal AC Power Supply
About this task
To install a 300 W or 750 W AC power supply in a switch, follow these instructions.
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.
If necessary, remove a blank panel from the back
of the switch (see the following figures).
- Verify that the power supply is right side up.
- Verify that the power supply's airflow direction (front-to-back or back-to-front) is compatible with the switch.
Carefully slide the power supply all the way into
the power supply bay (see the following figures).
Push the power supply in until the latch snaps
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.
Connect the AC power cord.
For 300 W AC power supplies: connect the AC power cord to the input connector on the power supply and rotate the wire clip into place over the power cord connector.
For 750 W AC power supplies:
If necessary, slide the plastic cord
retainer farther away from the back of the switch (see Moving the Power Cord Retainer).
Connect the AC power cord to the input
connector (see Connecting the Power Cord).
Open the clip and slip it over the barrel
of the connector (see Attaching the Power Cord
- Snap the clip firmly around the connector.
- If necessary, slide the plastic cord retainer farther away from the back of the switch (see Moving the Power Cord Retainer).
Connect the other end of the power cord to an AC
Always make sure that the source outlet is properly grounded before plugging the AC power cord into the AC power supply.