Replacing the cable-management arm: 2145-CG8 or 2145-CF8

You can replace the cable-management arm, which routes and secures power cables and other cables.

1. At the rear of the rack, install the cable-management-support arm.
   Insert both ends of the cable management support arm into the slide rail, as shown by Figure 1.

   Figure 1. Installing the cable-management-support arm

   
2. Install the cable management arm, as shown in Figure 2.
   Figure 2. Installing the cable-management arm

   
   Note: Make sure that the junctions on the arm, as shown by  1  in Figure 2, are facing the node.

   Place the cable management arm on the support arm. Pull out both cable-management-arm pins and then slide the cable-management-arm tabs into the slots on both the inside and the outside of the slide rail. Push the tabs until they snap into place.

3. Adjust the location of the cable management arm, as shown in Figure 3.
   Figure 3. Adjusting the location of the cable-management arm

   

   Ensure that the support rail is located between the 2 nailhead features.

4. Attach the power-and-serial-cable bundle, the Fibre Channel cables, and the one or two Ethernet cables to the rear of the node.
   1. Route the data cables and power cords on the cable-management arm, as shown by  1  in Figure 4.

      If you attach the arm properly and route the cables properly, the arm swings into the rack as you pull the node forward in the rack, opening to allow the cables to follow the node toward the front of the rack. You can perform some service procedures without disconnecting the Fibre Channel cables and the Ethernet cables. You can also perform some service procedures without turning off the node or disconnecting the power cables.

   2. Secure the cables with cable ties or hook-and-loop fasteners.
   Note: Leave some slack in all of the cables to avoid tension in the cables as the cable-management arm moves.
   Figure 4. Connecting and routing the cables

   
5. Slide the node into the rack until it snaps into place.
6. Connect all cables to the back of the node.