Chonghan CH-M3, User Manual, Page: 5 / 19

SAMUEL
2019-9-20
CHONGHAN CH-M3 WIRELESS MODEM USER MANUAL
页
5
Contents
Important Notice ............................................................................................................................... 3
Safety and Hazards ............................................................................................................................ 3
Limitations of Liability ....................................................................................................................... 3
Copyright ........................................................................................................................................... 4
Trademarks ........................................................................................................................................ 4
Contact Information .......................................................................................................................... 4
Contents ............................................................................................................................................ 5
1. Overview ................................................................................................................................... 7
1.1. Document History ......................................................................................................... 7
1.2. References ..................................................................................................................... 7
1.3. Abbreviations ................................................................................................................ 7
1.4. Products List .................................................................................................................. 8
1.5. Presentation Rules ........................................................................................................ 8
1.6. AT Command Syntax ...................................................................................................... 8
2. Introduction .............................................................................................................................. 8
2.1. Features ......................................................................................................................... 9
2.2. Application .................................................................................................................... 9
3. Device Connection .................................................................................................................... 9
4. Commonest Command ........................................................................................................... 11
5. SMS Function .......................................................................................................................... 11
5.1. GSM/GPRS/LTE SMS Function ..................................................................................... 11
5.1.1. GSM/GPRS/LTE Message Relate Command .................................................... 11
5.1.2. GSM/GPRS/LTE Query SMS Center.................................................................. 11
5.1.3. GSM/GPRS/LTE ASCII Message ........................................................................ 12
5.1.4. GSM/GPRS/LTE PDU Message ......................................................................... 12
5.1.5. GSM/GPRS/LTE Send long letter ...................................................................... 13
5.1.6. GSM/GPRS Receive SMS .................................................................................. 15
5.2. SMS Process ................................................................................................................ 16
6. TTS voice broadcast function .................................................................................................. 16
6.1. Judgement operator .................................................................................................... 16
6.2. UNICODE encoding mode ........................................................................................... 17
6.3. GBK encoding mode .................................................................................................... 17
7. CSD .......................................................................................................................................... 17
7.1. Relate Command ......................................................................................................... 17
7.1.1. Modem Initial Command ................................................................................ 17
7.1.2. Server Initial .................................................................................................... 17
7.1.3. Client Dial A Data Call ...................................................................................... 18
7.1.4. Server Manual Answer .................................................................................... 18
7.1.5. Communication Operate Command ............................................................... 18
7.1.6. Hang Up ........................................................................................................... 18
8. Reboot ..................................................................................................................................... 18
9. Three-view Drawing ................................................................................................................ 18