| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 19897.3-2005 | English | 504 |
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Days<=4
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Automatic meter reading system lower layer communication protocol -- Part 3: Physical layer services and procedures for connection oriented asynchronous data exchange
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GB/T 19897.3-2005
| Valid |
GB/T 19897.3-2005
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