（单词翻译:单击）
| 中文 | 英文 | 缩写 |
| * （符） | star (symbol) | |
| [美国]电气和电子工程师学会 | Institute for Electrical and Electronic Engineers | IEEE |
| “请发码”信号 | "send-digits" signal | |
| 1/8时钟 | Octet Binary1 CLocK | OBCLK |
| 1000BASE-T铜线千兆位 | a 1000BaseT/gigabit over copper2 cabling | |
| 10BaseT用户接口 | 10BaseT User Interface3 | TBTUI |
| 3级时钟增强 | STratum4 3 Enhanced | ST3E |
| 3阶高密度双极性码 | High Density5 Bipolar of order 3 | HDB3 |
| 4线制干线 | four-wire trunk circuit | |
| 7号信令 | No.7 signaling | |
| A 律 | A Law | |
| A/B线 | A wire/B wire | |
| A/B线中继 | A wire/B wire Trunk | ABT |
| A/B线中继出板 | A wire/B wire Trunk Out | ABTO |
| A/B线中继入板 | A wire/B wire Trunk In | ABTI |
| Abis 接口 | Abis interface | |
| Abis接口单元 | aBis Interface Unit | BIU |
| Abis接口单元背板 | Backplane of aBis Interface Unit | BBIU |
| Abis接口外围处理器 | aBis Interface Peripheral Processor | BIPP |
| A-B图像混台器 | A-B cut mixer | |
| AB线开短路测试 | AB open/short circuit test | |
| ACSE服务提供者 | ACSE service provider | |
| ACSE服务用户 | ACSE service-user | |
| ACSE提供者 | ACSE-provider | |
| AC电源线 | AC power cord | |
| APS倒换恢复时间库 | APS wait-to-restore time database |
