Disclosed herein are mechanisms to support the management of multicast keys for a multicast group comprising one or more optical line terminals, one or more fiber to coax units, and a plurality of coax network units. For example, certain embodiments of this invention relate to a method of making a coated article including a step of heat treating a glass substrate coated with at least a layer of or including diamond-like carbon and an overlying protective film thereon. A probe assembly is provided for coupling in a gaseous and fluid-type manner to the walls of the carbonator tank. The microstructure may then be released from the semiconductor substrate in accordance with the etch stop. The first cleat of the first upright is slidably received in the upper and lower cleat holes of the first rail, and the second cleat of the second upright is slidably received in the upper and lower cleat holes of the second rail. A specimen review system is also described, including a specimen stage configured to receive specimens for viewing, a source of illumination providing illumination to the specimen stage, a review scope configured to review specimens positioned on the specimen stage, the review scope comprising a parcentric objective configured to resolve a field of view of the specimen stage.