Service Guide
Table Of Contents
- Safety Information
- About the Document
- Contents
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Overview
- 3 Application Interfaces
- 3.1. General Description
- 3.2. Pin Assignment
- 3.3. Pin Description
- 3.4. Operating Modes
- 3.5. Power Saving
- 3.6. Power Supply
- 3.7. Turn on/Turn off/Reset
- 3.8. (U)SIM Interfaces
- 3.9. USB Interface
- 3.10. UART Interfaces
- 3.11. SPI Interface
- 3.12. I2C Interfaces
- 3.13. PCM Interface
- 3.14. Analog Audio Interfaces
- 3.15. LCD Interface
- 3.16. Matrix Keyboard Interface
- 3.17. SD Card Interface
- 3.18. WLAN Application Interface*
- 3.19. ADC Interfaces
- 3.20. Network Status Indication
- 3.21. STATUS
- 3.22. Behaviors of MAIN_RI
- 3.23. USB_BOOT Interface
- 4 Antenna Interfaces
- 5 Electrical Characteristics, Radio and Reliability
- 6 Mechanical Information
- 7 Storage, Manufacturing & Packaging
- 8 Appendix References
LTE Standard Module Series
EC200U_Series_Hardware_Design 58 / 94
4 Antenna Interfaces
EC200U series module provides a main antenna interface, a Wi-Fi Scan/Bluetooth antenna interface and
a GNSS antenna interface. The antenna ports have an impedance of 50 Ω.
4.1. Main Antenna and Wi-Fi Scan/Bluetooth Antenna Interfaces
4.1.1. Pin Definition
The pin definition of main antenna and Wi-Fi Scan/Bluetooth antenna interfaces is shown below.
Table 33: Pin Definition of Antenna Interfaces
Pin Name
Pin No.
I/O
Description
Comment
ANT_MAIN
49
AIO
Main antenna interface
50 Ω impedance.
ANT_BT/WIFI
_SCAN
35
AIO
The shared antenna interface of Wi-Fi
Scan/Bluetooth; Bluetooth and Wi-Fi
Scan cannot be used simultaneously;
Wi-Fi Scan antenna can only receive
but not transmit.
50 Ω impedance.
If unused, keep it open.
EC200U series supports Bluetooth and Wi-Fi Scan functions. Due to the shared antenna interface, the
two functions cannot be used at the same time; Bluetooth and Wi-Fi Scan functions are optional
(supported or not supported simultaneously), please contact Quectel Technical Supports for details.
NOTE