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| International Standard Category: Data communication networks |
GB 12048-1989 Requirements for clock and synchronization equipment used in the digital network
数字网内时钟和同步设备的进网要求 ;
| Category No.: | 33.040.40 | Valid Status: | valid |
| Issued Organization: | State Technical Supervision Bureau | Issued Date: | 1989-01-02 |
| Implemented Date: | 1990-7-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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