Cable management refers to management of electrical or optical cable in a cabinet or an installation. The term is used for products, workmanship or planning. Cables can easily become tangled, making them difficult to work with, sometimes resulting in devices accidentally becoming unplugged as one attempts to move a cable. A strain relief or cable gland can provide protection to the wires and cable by securing the cable to the panel of the equipment. It helps to protect from stress and damage as well as unintended disconnection.