Installing the cable management arm assembly for the SAN Volume Controller 2145-DH8

The SAN Volume Controller 2145-DH8 uses a cable management arm assembly to route and secure power and communication cables.

About this task

• The cable management arm assembly can be installed on either side of the server.
• The inner rail of the cable management arm assembly must be on top to work correctly.

Figure 1 shows the parts that are used to install the cable management arm assembly.

Figure 1. Parts for installing the SAN Volume Controller 2145-DH8 cable management arm assembly

•  1  SAN Volume Controller 2145-DH8 cable-management support bar
•  2  SAN Volume Controller 2145-DH8 cable-management arm assembly
•  3  SAN Volume Controller 2145-DH8 cable-management stop bracket

To install the cable management arm assembly, complete the following steps.

1. Install the cable management support bar on the left-rear side of the node, as shown in Figure 2.
   1. Connect one end of the support bar to the same slide rail to which you plan to attach the cable management arm assembly.
   2. Swing the other end of the support bar toward the rack.
   Figure 2. Installing the cable-management support bar

   
2. Connect the other end of the support bar to the stop bracket, as shown in Figure 3.
   Figure 3. Connecting the cable management support bar to the stop bracket

   
3. Connect the stop bracket to the slide rail, as shown in Figure 4.
   1. The capital letters I and O are printed on cable management arm pins to identify the inside and outside pins.
   2. Install the stop bracket (with capital letter O) on the unattached end of the support bar.
   3. Verify that the support bar is securely installed.
   Figure 4. Connecting the stop bracket to the slide rail

   
4. Install the cable management arm as shown in Figure 5.
   1. Place the cable management arm on the support bar.
   2. Pull out both the inside and the outside pins of the cable management arm.
   3. Slide the cable management arm tabs into both the inside and the outside slots of the slide rail.
   4. Push the tabs until they snap into place.
   Figure 5. Installing the cable management arm

   
5. Close the stop bracket as shown in Figure 6.
   1. Open the stop bracket, which makes rotating the cable management arm on and off the support bar easier.
   2. Push the tabs above and below the stop bracket to close it.
   Figure 6. Closing the stop bracket

   
6. Connect and route the cables as shown in Figure 7.
   1. Connect the power cords and other cables to the rear of the node.
   2. Route the cables and power cords on the cable management arm and secure them with cable ties or hook-and-loop fasteners.
   Note:

   • The location of the cable straps can vary in different systems.
   • Use the cable straps that are provided on the rear of the system to retain the cables and prevent them from sagging.
   Figure 7. Connecting and routing the cables

   
7. Secure the cables with the hook-and-loop fastener strap, as shown in Figure 8.
   Note:

   • Cables must be bundled with the hook-and-loop fastener strap to ensure full range of movement of the cable management arm.
   • Make sure that the cables do not sag below the U space so they cannot interfere with the lower systems.
   • Allow slack in all cables to avoid tension in the cables as the cable management arm moves.
   Figure 8. Securing the cables with hook-and-loop fastener strap

   
8. Optional: You can install the cable management arm assembly on the opposite side, as shown in Figure 9.
   1. Press the release buttons  1  and slide the mounting brackets  2  out of the cable management arm.
   2. Rotate the cable management arm  3 .
   3. Flip the mounting brackets  4 .
   4. Insert the inner bracket (marked with a capital letter I) and outer bracket (marked with a capital letter O) into the cable management arm  5 .
   Figure 9. Installing the cable management arm on the opposite side

   
9. Optional: If you are in a vibration-prone area, or if you are shipping the rack with the system installed, secure the cable management arm and the server to the rack as shown in Figure 10.
   1. Insert the M6 screws to the rear of the slides.
   2. Use a cable tie to secure the free end of the cable management arm to the rack.
   Figure 10. Securing the cable management arm and node

   
10. Optional: If you are in a vibration-prone area, or if you are preparing to move the rack cabinet, install the front screws as shown in Figure 11.
    1. Slide the server into the rack until the release latches  1  engage.
    2. Insert the M6 screws  2  in the front of the server.
    Figure 11. Installing the front screws