Important: To open the server with the cables attached, you must install and use the cable-management arm. You can use the cable-management arm only with a four-post rack.
If your rack is the same depth as the server (or an inch or so deeper), you attach the cable-management arm to the left rear post of the rack. If your rack is several inches deeper than the server, you attach the cable-management arm to the left brace that supports the back of the server.
The steps that follow explain how to connect cables to the cable-management arm and attach the arm either to the left rear post or to the left brace at the back of the server.
Connect Cables to the Cable-Management Arm
Before you attach the cable-management arm to the rack or support brace, you need to connect the cables to the arm.
Important: To use the cable-management arm, your cables must be approximately 3 feet longer than the distance between the server and its peripheral devices. This extra length may not be feasible for some cables, such as SCSI cables. In this instance, you can bypass the cable-management arm with a shorter cable. But you must disconnect that cable when you open the server.
Follow these steps to connect the cables to the cable-management arm.
1Gather the cables you will connect to the server’s back panel, along with the power cord. (Use the cord supplied with the server.)
Make certain that each cable has the proper connector and that it is designed for use in a high-capacity server. (Check the documentation for each peripheral device or cable to determine that it can be used with the server.)
2Attach an identifying label to each cable you are connecting.
The labels allow you to locate a specific cable quickly and avoid errors when disconnecting cables.
3Hold the cable-management arm in the orientation you will use to attach it to the rack or support brace.
Chapter 3 Installing Your Server in a Rack
