| ACR | Attenuation crosstalk RATIO | 衰减串扰比 |
| BD | Building distributor | 建筑物配线设备 |
| CD | Campus Distributor | 建筑群配线设备 |
| CP | Consolidation point | 集合点 |
| dB | dB （decibel） | 电信传输单元：分贝 |
| d.c. | Direct current | 直流 |
| EIA | Electronic Industries Association | 美国电子工业协会 |
| ELFEXT | Equal level far end crosstalk attenuation(Loss) | 等电平远端串扰衰减 |
| FD | Floor distributor | 楼层配线设备 |
| FEXT | Far end crosstalk attenuation(Loss) | 远端串扰衰减（损耗） |
| IEC | International Electrotechnical Commission | 国际电工技术委员会 |
| IEEE | The Institute of Electrical and Electronics Engineers | 美国电气和电子工程师学会 |
| IL | Insertion Loss | 插入损耗 |
| IP | Internet Protocol | 因特网协议 |
| ISDN | Integrated services digital network | 综合业务数字网 |
| ISO | International Organization for Standardization | 国际标准化组织 |
| LCL | Longitudinal to differential conversion Loss | 纵向对差分转换损耗 |
| OF | Optical fibre | 光纤 |
| PSNEXT | Power sum NEXT attenuation(Loss) | 近端串扰功率和 |
| PSACR | Power sum ACR | ACR功率和 |
| PS ELFEXT | Power sum ELFEXT attenuation(Loss) | ELFEXT衰减功率和 |
| RL | Return loss | 回波损耗 |
| SC | Subscriber connector(optical fibre connector) | 用户连接器（光纤连接器） |
| SFF | Small form factor connector | 小型连接器 |
| TCL | Transverse conversion Loss | 横向转换损耗 |
| TE | Terminal Equipment | 终端设备 |
| TIA | Telecommunications Industry Association | 美国电信工业协会 |
| UL | Underwriters Laboratories | 美国保险商实训所安全保准 |
| Vr.m.s | Root-mean-square Voltage | 电压有效值 |
