Abstract: Devices for routing and organizing fibers in a rack that houses optical equipment, including a strain relief member, a chaffing guard, and a sag reducer. The strain relief member includes a body having rounded upper and lower portions, each being at least equal to the minimum bend radius of the fibers exiting the equipment, and fins on top of the body. Fibers can be interference fit between adjacent fins, thereby relieving pressure on the connector caused by gravity when the fiber hangs down over the strain relief member. The chaffing guard includes a body having a rounded upper portion and a rounded lower portion that each maintain the minimum bend radius of fibers routed over the guard. The rounded upper portion has no sharp edges and therefore reduces chaffing of fibers routed over the top of the chaffing guard.

Abstract: A voltage regulator for determining whether a primary power source is present in a dual power coaxial cable network. The present invention consists of a primary power source for producing a first voltage and a secondary power source for producing second voltage. A common input combines the first voltage with the second voltage. A voltage regulator produces an output voltage in either linear mode or pulsating mode based on the magnitude of the combined first and second voltages received from the common input.