IBM 0551, Руководство пользователя

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12. After both rails have been installed, ensure that none of the rail retaining screws are more than
finger-tight. The rails
must be level from front to back and from left to right.
Installing the cable-management arm
You might need to install the cable-management arm. Use this procedure to perform this task.
To install the cable-management arm, complete the following steps:
1. Determine on which side of the rack you want to install the cable-management arm.
2. Place the correct arm bracket (left or right) with the cable-management arm.
3. Use the pin (F) to pin the cable-management arm (E) to the rack frame (D) as shown in Figure 31 on
page 37.
Tip: If access to the back of the rack is obscured by many existing cables, it might be easier to remove
the small connecting hinge from the cable-management arm and attach it first. Then, you can attach
the remaining section of the cable-management arm to the connecting hinge.
4. Use the second pin (F) to pin the other end of the cable-management arm to the flange (C) that is
attached to the sliding portion of the left system rail assembly (B) . See Figure 31 on page 37.
Connecting the power cables to the system
You might need to connect power cables to the system. Use this procedure to perform this task.
To connect power cables to the system, follow these steps:
1. While facing the rear of the system unit, note the bottom tab of the cable-restraint bracket. Turn the
cable-restraint bracket counter-clockwise to a horizontal position, and insert the bottom tab of the
cable-restraint bracket into the bottom hole in the rail. Then rotate the cable-restraint bracket
clockwise to the vertical position as shown in Figure 32 on page 38. Insert the system power cord
through the cable-restraint bracket as shown in this figure. Then press down on the top of the bracket
and insert the top tab into the top hole.
Figure 41. Attaching the cable-management arm
Chapter 3. Installing a system or expansion unit into a rack
47