Installing or replacing the support rails: 2077-92F

You must install the support rails before you can install a 2077-92F expansion enclosure in a rack.

1. Locate the hardware that is used to install the rails, including the M4xL6 and M5xL13 screws. Set the hardware, which is shown in Figure 1, aside for use later in the installation process.
   Figure 1. Support rails

   
2. Select an available 5U space in your rack to install the expansion enclosure.
   Important: When all components and drives are installed, the expansion enclosure is heavy. Install the support rails and enclosure at the lowest available position. Do not install the rails and enclosure above position U25 in the rack.
3. Remove the inner member of the rail. Push the tab ( a ) and slide the middle rail member back, as shown in Figure 2.
   Figure 2. Detaching the inner rail section

   
4. Use four M4 screws to attach the inner rail to the side of the enclosure. Figure 3 shows the screw locations.
   Figure 3. Screw locations to attach the inner rail to the enclosure

   
5. Install the inner section of the rail onto each side of the expansion enclosure, as shown in Figure 4.
   Figure 4. Attaching the inner rail section to the enclosure

   
6. Use the M5 screws to install the outer rail member and bracket assembly to the rack, as shown in Figure 5.
   Figure 5. Installing the rail assembly to the rack frame

   
   For example, Figure 6 shows the front of the rail that is attached to the frame.

   Figure 6. Example of required rack space

   
7. Repeat steps 5 through 6 to install the opposite rail.
8. Install the expansion enclosure in the rack, as described in Installing or replacing an expansion enclosure in a rack: 2077-92F.