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GB/T 7556-1987
GB/T 7556-1987 General characteristics complying with the network performance objectives for 60 channel carrier telephone systems on symmetric cable pairs
General Product Information
| Committee | The Telecommunications Transmission Research Institute of the Ministry of Posts and Telecommunications |
|---|---|
| Document Type | National standards |
| Publisher Name | National Standards Bureau |
| Standard Status | Abolished |
| Standard Code | GB/T 7556-1987 |
| ICS | Data communication network |
| Implement Date | 1987-11-01 |
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