Users Manual

LTE Standard Module Series
EC200T Series Mini PCIe Hardware Design
EC200T_Series_Mini_PCIe_Hardware_Design 32 / 54
Software method can be controlled by AT+CFUN, and the details are as follows.
Table 13: Airplane Mode Controlled by Software Method
3.10.4. PERST# Signal
The PERST# signal can be used to force a hardware reset on the card. The module can be reset by
driving the PERST# signal low for at least 300ms and then releasing it. The PERST# signal is sensitive to
interference. The traces should be as short as possible and be surrounded with ground. The reset
scenario is illustrated in the following figure.
V
IL
≤0.5V
VBAT
Module
Status
Running
PERST#
Baseband restart
Baseband resetting
≥30 0m s
Figure 11: Timing of Resetting Module
1. Please ensure that there is no large capacitance with the max value exceeding 10nF on PERST# pin.
2. PEREST# only resets the internal baseband chip of the module and does not reset the power
management chip.
AT+CFUN=? RF Function Status Module Operation Mode
0 RF and (U)SIM disabled Minimum functionality mode
1 RF enabled Normal mode
4 RF disabled Airplane mode
NOTES