| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 1957.1-2009 | English | RFQ |
ASK
|
Days<=6
|
Techincal Requirements for Automatically Switched Optical Network(ASON)Node. Part1: Technical Requirements for SDH-based ASON Node
|
YD/T 1957.1-2009
| Obsolete |
YD/T 1957.1-2009
|