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| 1. | Specifications for synchronous digital hierarchy (SDH) multiplex equipment |
| GB/T16712-1996同步数字体系（SDH）复用设备技术要求 |
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| 2. | primary multiplex equipment |
| 一次辐射器 |
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| 3. | PCM multiplex equipment |
| 脉码调制多路复用设备 |
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| 4. | Performance and test methods of the 30 channels pulse code modulation multiplex equipment at 2048 kbit |
| GB/T6879-19952048kbit/s30路脉码调制复用设备技术要求和测试方法 |
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| 5. | analog multiplex equipment |
| 模拟多路设备 |
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| 6. | time division multiplex equipment |
| 时分多路复用设备 |
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| 7. | digital multiplex equipment |
| 数字复用设备 |
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| 8. | Technical code for installation and acceptance of digital multiplex equipment |
| 数字复用设备安装工程施工及验收技术规范（PDH部分） |
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| 9. | frequency division multiplex equipment |
| 频分多路复用设备 |
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| 10. | Performance and test methods of the fourth order digital multiplex equipment operating at 139264 kbit |
| GB/T11324-1995139264kbit/s正码速调整四次群数字复用设备技术要求和测试方法 |
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