User's Manual

LTE Module Series
EC21 Hardware Design
EC21_Hardware_Design Confidential / Released 88 / 94
9 Appendix A References
Table 51: Related Documents
SN Document Name Remark
[1] Quectel_EC21_Power_Management_Application_Note
EC21 Power Management Application
Note
[2] Quectel_EC25&EC21_AT_Commands_Manual EC25 and EC21 AT Commands Manual
[3] Quectel_EC25&EC21_GNSS_AT_Commands_Manual
EC25 and EC21GNSS AT Commands
Manual
[4] Quectel_Module_Secondary_SMT_User_Guide Module Secondary SMT User Guide
[5] Quectel_EC21_Reference_Design EC21 Reference Design
[6] Quectel_RF_Layout_Application_Note RF Layout Application Note
[7] Quectel_SGMII_Design_Application_Note SGMII Design Application Note
Table 52: Terms and Abbreviations
Abbreviation Description
AMR Adaptive Multi-rate
bps Bits Per Second
CHAP Challenge Handshake Authentication Protocol
CS Coding Scheme
CSD Circuit Switched Data
CTS Clear To Send
DC-HSPA+ Dual-carrier High Speed Packet Access
DFOTA Delta Firmware Upgrade Over The Air