A rack rail
assembly having an adjustable length that can be installed, without any tools or loose hardware, into a rack having mounting holes that are square or circular. It is also preferred that the rack rail
assembly be reversible and able to support sliding and fixed deployment
modes as well as cable mounting equipment. Accordingly, one preferred embodiment of the rack rail
assembly comprises inner and outer rail members that are slidingly engaged. The rail members are adjustable lengthwise to be able to be used with various depth racks. The assembly further comprises a primary
locking mechanism that locks the rails together at the desired length. The primary
locking mechanism is further coupled to a biasing mechanism that allows the rails to be compressed for installation within a rack. Each end of the rail assembly has at least two pins that interface with mounting holes located in the rack. Preferably, the pins are capable of
interfacing with circular or rectangular mounting holes. The rail assembly further comprises a secondary
locking mechanism that locks the inner and outer rail together once the rail assembly is installed in the rack. The rack rail assembly further provides attachment points so a deployment rail can be installed once the rail assembly is installed on the rack. Depending on the desired application, either a sliding or a fixed deployment rail can be installed. The rail assembly also includes mounting point for
cable management equipment.