This specification is the technical basis for construction quality inspection, stage acceptance, and completion acceptance in fixed telephone network intelligent equipment installation projects. This specification is applicable to new construction projects of fixed network intelligent equipment, and expansion and reconstruction projects shall be implemented accordingly.
YD/T 5156-2007 history
2014YD 5077-2014 Accepting Specification for PSTN Installation Engineering
2007YD/T 5156-2007 Accepting Specification for Fixed Network Intelligence System Installation Engineering
YD/T 5156-2007 Accepting Specification for Fixed Network Intelligence System Installation Engineering was changed to YD 5077-2014 Accepting Specification for PSTN Installation Engineering.