INTERNATIONALSTANDARD(PDF 28页）

Foreword iv
Introduction ........ v
1 Scope...... 1
2 Conformance..... 1
3 Normative references ... 1
4 Terms and definitions... 2
5 Symbols and abbreviated terms.......... 2
6 433,92 MHz active narrowband specification. 2
6.1 Physical layer .... 2
6.2 Data Link layer... 2
6.2.1 General ... 2
6.2.2 Preamble  3
6.2.3 Data byte format 3
6.2.4 CRC bytes .......... 3
6.2.5 Packet end period ......... 3
6.2.6 Interrogator to tag message format .... 3
6.2.7 Tag to interrogator message format ... 5
6.2.8 Tag collection and collision arbitration ........ 14
6.3 Physical and Media Access Control (MAC) parameters ..... 16
6.3.1 Interrogator to tag link 16
6.3.2 Tag to interrogator link........... 17
6.3.3 Protocol parameters ... 18
6.3.4 Anti-collision parameters ....... 19
Bibliography ..... 20
..............................