YDN 114-1999 Verification and protocol stack test of synchronous digital hierarchy (SDH) network element management functions (internal standard) (English Version)
2014YD/T 2754-2014 Verification of functions and protocol stack for synchronous digital Hierarchy(SDH)network element management
1999YDN 114-1999 Verification and protocol stack test of synchronous digital hierarchy (SDH) network element management functions (internal standard)
YDN 114-1999 Verification and protocol stack test of synchronous digital hierarchy (SDH) network element management functions (internal standard) was changed to YD/T 2754-2014 Verification of functions and protocol stack for synchronous digital Hierarchy(SDH)network element management.