Cisco Systems 124778 Install the 1 RU Distribution Shelf, 5 1 RU Distribution Cable Dressing

Chapter 2 System Installation

2.2.2 Install the 1 RU Distribution Shelf

Figure 2-5 1 RU Distribution Cable Dressing

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2.2.2 Install the 1 RU Distribution Shelf

Systems equipped with an optional 1 RU Distribution Shelf require power connections from the system shelf to the 1 RU Distribution Shelf using four cables terminated with Anderson power pole connectors. These cable connectors are pre-wired to the system shelf and should be connected to the 1 RU Distribution Shelf during installation.

Note In pre-installed system shelves, the DC cabling should be located at the top of the system shelf. Cable labels are provided (-48V and Return) for ease of installation.

In addition, the distribution alarm connection is made via a pre-wired 10 pin Molex™ connector from the system shelf and should be connected to the 1 RU Distribution Shelf at the indicated connection point.

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 on page 2-5). To install ETSI mounting ears, remove existing ears and attach ETSI mounting ears using included hardware.

Step 2 Make sure that all circuit breakers are in the OFF position (see Figure 2-16 on page 2-19). Step 3 Move the 1 RU Distribution Shelf to the desired rack slot (directly above the system shelf).

Step 4 Secure the 1 RU Distribution Shelf to the rack using the four included mounting screws (Figure 2-6). See for more information.

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

2-6 May 2006