Dell PowerConnect W-3000 Series Controller | Installation Guide Installing the W-3000 Series Controllers | 15Figure 3 Air Flow Requirements7. Connect the AC power cord (country-specific) to the rear of the unit.8. Plug the opposite end of the power cord into an electrical outlet to power on the controller.Installation in a Server RackTo install a W-3000 Series Controllers controller into a 19-inch (48.26 cm) Server rack system:1. Place a rack mount bracket over the mounting holes on one side of the controller (see Figure 1).2. Secure the bracket to the controller using three 6-32 x 1/4” phillips head screws and a suitable screwdriver.3. Repeat these steps on the opposite side of the controller.4. Install the four cage nuts.a. Begin by inserting the lower lip of the cage but over the square opeing in the back of the rail.b. Insert the small end of the cage-nut installation tool through the opening in the rail (from the front), andhook the tool over the top lip of the cage nut.c. Push the cage nut in towards the rail while rotating the tool up and pulling the tool back toward you untilthe top lip of the cage nut snaps into position.5. Mount the controller within your organization’s rack system using four M6 x 20mm phillips head screws andsuitable screwdriver.6. Leave a minimum of four inches (10cm) of space on the left and right side of the unit for proper air flow andventilation (see Figure 3).7. Leave additional space in front and back of the unit to access power cords, network cables, and LED statusindicators (see Figure 3).8. Connect the AC power cord (country-specific) to the rear of the unit.9. Plug the opposite end of the power cord into an electrical outlet to power the controller.Keep Clear forAir ExhaustKeep Clear for Air IntakeKeep Open forEasy AccessKeep Open forEasy Access4 inches (10cm) MinimumNote: The following instructions describe the installation of your controller in a rack with unthreaded, square holes. For a rackwith unthreaded, round holes, use the provided clip nuts instead.Note: W-3000 Series Controllers do not have a power on/off switch. Power to the unit is controlled by inserting (or unplugging) thepower cord plug into your electric outlet.