User's Manual
Table Of Contents
- Contents
- Table Index
- Figure Index
- 0. Revision history
- 1. Introduction
- 2. Product concept
- 3. Application interface
- 3.1. Pin of module
- 3.2. Operating modes
- 3.3. Power supply
- 3.4. Power on and down scenarios
- 3.5. Charge interface
- 3.6. Power saving
- 3.7. Summary of state transition
- 3.8. RTC backup
- 3.9. Serial interfaces
- 3.10. Audio interfaces
- 3.11. SIM card interface
- 3.12. SD card interface
- 3.13. PCM interface
- 3.14. ADC
- 3.15. Behaviors of the RI
- 3.16. Network status indication
- 3.17. Operating status indication
- 4. Antenna interface
- 5. Electrical, reliability and radio characteristics
- 6. Mechanical dimensions
- 7. Storage and manufacturing
- Appendix A: GPRS coding schemes
- Appendix B: GPRS multi-slot classes
M50 Hardware Design
M50_HD_V2.0 - 14 -
The manual of the host system, which uses M50, must include RF exposure warning statement to
advice user should keep minimum 20cm from the radio antenna of M50 module depending on the
Mobile status.
The following list of antenna is indicating the maximum permissible antenna gain.
Type Maximum Gain
(850Hz/900Hz)
Maximum Gain
(1800Hz/1900Hz)
Impedance
External
Antenna
Monopole 0.5dBi 2dBi 50Ω
Vehicular antenna 0.5dBi 2dBi 50Ω
Internal
Antenna
Monopole 0.5dBi 2dBi 50Ω
PIFA 0.5dBi 2dBi 50Ω
FPC 0.5dBi 2dBi 50Ω
PCB 0.5dBi 2dBi 50Ω
This radio module must not be installed to co-locate and operate simu
ltaneously with other radios in host system;
additional testing and equipment authorization may be required to op
erating simultaneously with other radios.
Quecctel
Confidential