Contents
9XTend-PKG-U™ USB RF Modem User’s Guide
     iii
1. 9XTend USB RF Modem 4
1.1.  Key Features  4
1.1.1.  Worldwide Acceptance  4
1.2.  Specifications  5
1.3.  External Interface  6
1.4.  Pin Signals  7
1.5.  Power Options  7
2. RF Modem Operation 8
2.1.  Driver Installations  8
2.1.1.  USB Background Information  8
2.2.  Serial Communications  9
2.2.1.  Transparent Operation  9
2.2.2.  API Operation  9
2.3.  Modes of Operation  10
2.3.1.  Idle Mode  10
2.3.2.  Transmit Mode  10
2.3.3.  Receive Mode  11
2.3.4.  Sleep Mode  13
2.3.5.  Command Mode  15
3. RF Modem Configuration 17
3.1.  Programming Examples  17
3.1.1.  AT Commands  17
3.1.2.  Binary Commands  18
3.2.  API Operation  39
3.2.1.  API Frame Specifications  39
3.2.2.  API Types  40
4. RF Communication Modes 42
4.1.  Addressing  43
4.1.1.  Address Recognition  43
4.2.  Basic Communications  44
4.2.1.  Streaming Mode (Default)  44
4.2.2.  Multi-Transmit Mode  45
4.2.3.  Repeater Mode  46
4.2.4.  Polling Mode (Basic)  49
4.3.  Acknowledged Communications  50
4.3.1.  Acknowledged Mode  50
4.3.2.  Polling Mode (Acknowledged)  52
5. Appendix A: Agency Certifications 53
5.1.  FCC (United States) Certification  53
5.1.1.  Labeling Requirements  53
5.1.2.  FCC Notices  53
5.1.3.  Limited Modular Approval  54
5.1.4.  FCC-approved Antennas  54
5.1.5.  Labeling Requirements  57
5.2.  C-TICK (Australia) Certification  57
5.2.1.  Power Requirements  57
6. Appendix B: Additional Information 58
6.1.  5-Year Warranty  58
6.2.  Ordering Information  58
6.3.  Contact Digi  59