1.3 Reviewing the Cable Precautions

Review the following RDMA Network Fabric cable precautions before working with the cables:

• Fiber optic cables with laser transceivers must be of type Class 1.

• Do not allow any copper core cable to bend to a radius tighter than 127 mm (5 inches). Tight bends can damage the cables internally.

• Do not allow any optical cable to bend to a radius tighter than 85 mm (3.4 inches). Tight bends can damage the cables internally.

• Do not use zip ties to bundle or support cables. The sharp edges of the ties can damage the cables internally. Use hook-and-loop straps.

• Do not allow any cable to experience extreme tension. Do not pull or drag the cables, which can damage them internally.

• Unroll a cable for its length.

• Do not twist cables more than one revolution for their entire length. Twisting a cable might damage it internally.

• Do not route cables where they can be stepped on, or experience rolling loads. A crushing effect can damage the cable internally.