N_B Near-end Block 近端塊
N_BBE Near-end Background Block Error 近端背景塊誤碼
N_DS Near-end Defect Second 近端缺陷秒
N_EBC Near-end Errored Block Count 近端誤碼塊計數(shù)
NC Network Connection 網絡連接
NDF New Data Flag 新數(shù)據標識
NE Network Element 網絡單元，網元
NEF Network Element Function 網元功能
NNI Network Node Interface 網絡節(jié)點接口
NU National Use 國內使用
N_BBE Near-end Background Block Error 近端背景塊誤碼
N_DS Near-end Defect Second 近端缺陷秒
N_EBC Near-end Errored Block Count 近端誤碼塊計數(shù)
NC Network Connection 網絡連接
NDF New Data Flag 新數(shù)據標識
NE Network Element 網絡單元，網元
NEF Network Element Function 網元功能
NNI Network Node Interface 網絡節(jié)點接口
NU National Use 國內使用