| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 627-1993 | English | 559 |
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Days<=4
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Parameters of digital exchange digital relay interfaces (2048kbit/s) and transmission characteristics between digital relay interfaces as well as their test methods
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YD/T 627-1993
| Obsolete |
YD/T 627-1993
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