Integrated Services Digital Network (ISDN) - Basic User Network Interface (UNI) - Part 3: Implementation Conformance Statement (ICS) and Implementation Extra Information for Testing (IXIT) for Interface IB
Equipment Engineering - Environmental Conditions and Environmental Tests for Telecommunications Equipment; Part 1-3: Classification of Environmental Conditions Stationary Use at Weatherprotected Locations
Equipment Engineering - Environmental Conditions and Environmental Tests for Telecommunications Equipment - Part 2-2 Specification of Environmental Tests; Transportation