Cisco Systems Cisco 12008 manual Adding, Removing, or Replacing a DC-Input Power Supply

Adding, Removing, or Replacing a DC-Input Power Supply

Note The carrying handle on the DC-input power supply is designed to be grasped with your left hand, rather than your right hand. Using your left hand eliminates the potential for catching your fingers in the limited space between the plastic safety shield (see Figure 7-7) and the carrying handle.

Warning The DC-input power supply weighs 14 lb (6.36 kg). For safety, use both hands to install the unit in the power supply bay.

Step 5 Position the power supply appropriately for insertion into the vacant upper bay.

Step 6 Gently slide the unit into the bay, carefully seating it so that the power supply faceplate rests flush against the sheet metal of the power supply bay.

Caution To prevent damage to the blind-mating connector at the rear of the power supply, do not use excessive speed or force when inserting the power supply into the bay.

Note All necessary electrical connections between the power supply and the backplane are accomplished automatically by means of the blind-mating connector at the rear of the power supply.

Step 7 Using a 1/4-inch flat-blade screwdriver, tighten the captive installation screw on the power supply faceplate (see Figure 7-6).

Step 8 Remove the plastic safety shield (see Figure 7-7) that covers the alarm terminal block and the positive (+) and negative (–) terminals on the power supply faceplate.

To remove the plastic safety shield, take the following actions:

(a)Loosen the knurled thumb wheel on the bottom left standoff that secures the safety shield to the power supply faceplate.

Maintaining the Cisco 12008 7-23