| 1. | Information transmission devices and peripheral devices 信息传输设备和外围设备 |
| 2. | Overview of optical transmission equipment developed by huawei 华为光传输设备综述 |
| 3. | Management and maintenance of sdh transmission equipment 传输设备的管理及维护 |
| 4. | An analysis of errors arising in sdh transmission equipment 光传输设备误码问题分析 |
| 5. | Other optical transmission equipment special purpose 其他特殊用途光传输设备 |
| 6. | Optical transmission equipment , measure control 量测控制信号光传输设备 |
| 7. | Maintenance of huawei sdh optical transmission equipment 光传输设备维护 |
| 8. | Application of sdh transmission equipment in private network 光传输设备在专用网中的应用 |
| 9. | Optical transmission equipment measure control 量测控制信号光传输设备 |
| 10. | Optical transmission equipment , spatial wireless 空间无线光传输设备 |