| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 21564.3-2008 | English | 329 |
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Days<=3
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Message formats and protocols for serial data interfaces in alarm transmission systems -- Part 3: Common data link layer protocol
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GB/T 21564.3-2008
| Valid |
GB/T 21564.3-2008
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