Service Guide
Table Of Contents
- Safety Information
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Overview
- 3 Operating Characteristics
- 4 Application Interfaces
- 5 Antenna Interfaces
- 6 Reliability, Radio, and Electrical Characteristics
- 7 Mechanical Information
- 8 Storage, Manufacturing, and Packaging
- 9 Appendix References
LTE Standard Module Series
EG915U_Series_Hardware_Design 38 / 90
3.7. Reset
The RESET_N pin can be used to reset the module. The module can be reset by driving the RESET_N
pin low for at least 100 ms and then releasing it. The RESET_N signal is sensitive to interference, so it is
recommended to route the trace as short as possible and surround it with ground.
Table 10: Pin Description of RESET_N
The recommended circuit is similar to the PWRKEY control circuit. An open drain/collector driver or button
can be used to control the RESET_N.
Reset pulse
RESET_N
4.7K
47K
100 ms
Figure 14: Reference Circuit of RESET_N by Using Driving Circuit
RESET_N
S2
Close to S2
TVS
Figure 15: Reference Circuit of RESET_N by Using Button
Pin Name
Pin No.
I/O
Description
Comment
RESET_N
17
DI
Resets the module
VBAT power domain.
If unused, keep it open.