2 缩略语

ACR-F（Attenuation to Crosstalk Ratio at the Far-end）衰减远端串音比

ACR-N（Attenuation to Crosstalk Ratio at the Near-end）衰减近端串音比

d.c. （Direct Current Loop Resistance）直流环路电阻

ELTCTL（Equal Level TCTL）两端等效横向转换损耗

FEXT[Far End Crosstalk Attenuation (loss)] 远端串音

IL（Insertion Loss）插入损耗

NEXT[Near End Crosstalk Attenuation (loss)] 近端串音

OLT（Optical Line Terminal）光线路终端

OLTS（Optical Loss Test Set）光损耗测试

OTDR（Optical Time Domain Reflectometer）光时域反射

PS NEXT[Power Sum Near End Crosstalk Attenuation(loss)] 近端串音功率和

PS AACR-F（Power Sum Attenuation to Alien Crosstalk Ratio at the Far-end）外部远端串音比功率和

PS AACR-Favg（Average Power Sum Attenuation to Alien Crosstalk Ratio at the Far-end）外部远端串音平均值比功率和

PS ACR-F（Power Sum Attenuation to Crosstalk Ratio at the Far-end）衰减远端串音比功率和

PS ACR-N（Power Sum Attenuation to Crosstalk Ratio at the Near-end）衰减近端串音比功率和

PS ANEXT[Power Sum Alien Near-End Crosstalk(loss)] 外部近端串音功率和

PS ANEXTavg[Average Power Sum Alien Near-End Crosstalk(loss)] 外部近端串音平均值功率和

PS FEXT（Power Sum Far End Crosstalk）远端串音功率和

RL（Return Loss）回波损耗

TCL（Transverse Conversion Loss）横向转换损耗

TCTL（Transverse Conversion Transfer Loss）横向转换转移损耗

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