| 序号 | 中 文 | 英 文 | 术语解释 | 缩写 | 来源 |
| 101 | 操作维护中心 | Operation and Maintenance Center | OMC | YD/T 1221.1-2002 | |
| 102 | 光分插复用器 | Optical Add/Drop Multiplexer | OADM | YD/T 1205-2002 | |
| 103 | 波长转换器 | Optical Transponder Unit | OTU | YD/T 1205-2002 | |
| 104 | 上路波长转换器 | Optical Transponder Unit-Add | OTU-A | YD/T 1205-2002 | |
| 105 | 下路波长转换器 | Optical Transponder Unit-Drop | OTU-D | YD/T 1205-2002 | |
| 106 | 主叫标识，用于传输业务信息的参数 | Origination Indicator | OI | YDC 011-2002 | |
| 107 | 发端端局交换机 | Originating Local Exchange | OLE | YD/T 1202-2002 | |
| 108 | 光放大器 | Optical Amplifier | OA | YD/T 1199.2-2002 | |
| 109 | 光回损 | Optical Return Loss | ORL | YD/T 1199.2-2002 | |
| 110 | 光信号-噪声比 | Optical Signal-to-Noise Ratio | OSNR | YD/T 1199.2-2002 | |
| 111 | 光放大器 | Optical Amplifier | OA | YD/T 1199.1-2002 | |
| 112 | 光回呼损耗 | Optical Return Loss | ORL | YD/T 1199.1-2002 | |
| 113 | 光信噪比 | Optical Signal-to-Noise Ratio | OSNR | YD/T 1199.1-2002 | |
| 114 | 操作、管理和维护 | Operation,Administration and Maintenance | OAM | YD/T 1201-2002 | |
| 115 | 与呼叫相关的通路外的用户交互作用 | Out-Channel Call Related User Interaction | OCCRUI | YD/T 1201-2002 | |
| 116 | 操作、管理和维护 | Operation,Administration and Maintence | OAM | YD/T 1185-2002 | |
| 117 | 操作、管理和维护 | Operation,Administration,and Maintenance | OAM | YD/T 1190-2002 | |
| 118 | 开放最短路径 | Open Short Path First | OSPF | YD/T 1190-2002 | |
| 119 | 运行与维护 | O&M | YDC 007-2002 | ||
| 120 | 开放最短路径优先 | OSPF | YDC 007-2002 |