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 65 / 94
For more details about RF layout, please refer to document [3].
4.4. Antenna Installation
4.4.1. Antenna Requirement
The following table shows the requirements of main antenna.
Table 39: Antenna Requirements
4.4.2. Recommended RF Connector for Antenna Installation
If RF connector is used for antenna connection, it is recommended to use U.FL-R-SMT connector
provided by Hirose.
Type
Requirements
GNSS
Frequency range: 1559–1609 MHz
Polarization: RHCP or linear
VSWR: < 2 (typ.)
Passive antenna gain: > 0 dBi
Active antenna noise factor: < 1.5 dB
Active antenna gain: > 0 dBi
Active antenna internal LNA gain: < 17 dB
GSM/LTE
VSWR: ≤ 2
Efficiency: > 30 %
Max input power: 50 W
Input impedance: 50 Ω
< 1 dB: LB (< 1 GHz)
< 1.5 dB: MB (1–2.3 GHz)
< 2 dB: HB (> 2.3 GHz)