Cisco Systems 159330, 124792, 124778 Install the System Shelf, Cisco AC/DC Power System Front View

2.2.1 Install the System Shelf

Figure 2-2 Cisco AC/DC Power System Front View

Rectifier

Positions

Chapter 2 System Installation

System Shelf

124778

2.2.1 Install the System Shelf

Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special precautions to ensure that the system remains stable. The following guidelines are provided to ensure your safety:

•This unit should be mounted at the bottom of the rack if it is the only unit in the rack.

•When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest component at the bottom of the rack.

•If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in the rack. Statement 1006

The system shelf should be installed first, followed by the 1 RU Distribution Shelf (if this option is included as part of the installation).

Step 1 Determine if the correct ear mounts are installed on the system shelf. Ear mounts are shipped mounted on the shelf and support 19in. and 23in. IEC and ANSI standards (for 23in. shelves, ears should be removed, reversed and reinstalled). Two additional plates are also included to accommodate ETSI racks (Figure 2-3). To install ETSI mounting ears, remove existing ears and attach ETSI mounting ears using included hardware.

Cisco AC/DC Power System User Guide, R1.0

2-4 May 2006