This standard is part of a suite of standards and provides the physical technical requirements for telecommunications equipment systems and assemblies intended for installation in network equipment buildings, equipment areas within buildings, electronic equipment enclosures such as controlled environmental vaults, outside electronic equipment cabinets, and customer locations. Please note: This standard (ATIS-0600006) along with ATIS-0600005 and ATIS-0600004, together, supercedes that of T1.304-1997.