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 26 / 94
V
IH
min = 1.26 V
V
IH
max = 2.0 V
open.
SLEEP_IND
3
DO
Sleep indicator
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power domain.
If unused, keep it
open.
W_DISABLE#
4
DI
Airplane mode
control
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power domain.
Pull-up by default.
Driving the pin low
can make the
module enter the
airplane mode.
If unused, keep it
open.
GPIO1
126
DO
CP log
It can output CP log,
and only 8 Mbps
baud rate is
supported, and test
points should be
reserved.
BT_EN
139
Reserved
GRFC1
143
DIO
Generic RF
controller
GRFC2
144
DIO
Generic RF
controller
Reserved Pins
Pin Name
Pin No.
Comment
RESERVED
18, 55, 81, 82, 116, 117
Keep these pins
open.
3.4. Operating Modes
Table 8: Overview of Operating Modes
Mode
Details
Normal
Operation
Idle
Software is active. The module has registered on the network, and it is
ready to send and receive data.
Talk/Data
Network connection is ongoing. In this mode, the power consumption is
decided by network setting and data transfer rate.