UMTS/HSPA+ Standard Module Series
UC200T-GL Mini PCIe Hardware Design
UC200T-GL_Mini_PCIe_Hardware_Design 29 / 51
Figure 11: RI Behaviors
3.10.2. DTR Signal
The DTR signal is used for sleep mode control. It is pulled up by default. When module is in sleep mode,
driving it to low level can wake up the module. For more details about the preconditions for module to
enter sleep mode, please refer to
Chapter 3.4.1
.
3.10.3. W_DISABLE# Signal
UC200T-GL Mini PCIe provides a W_DISABLE# signal to disable or enable the RF function (GNSS not
included). The W_DISABLE# pin is pulled up by default. Its control function for airplane mode is disabled
by default, and
AT+QCFG=“airplanecontrol”,1
can be used to enable the function. Driving it to low level
can make the module enter airplane mode.
Table 12: Airplane Mode Controlled by Hardware Method
Software method can be controlled by
AT+CFUN
, and has the same effect with W_DISABLE# signal
function, the details are as follows.
Table 13: Airplane Mode Controlled by Software Method
W_DISABLE#
RF Function Status
Module Operation Mode
High level
RF enabled
Normal mode
Low level
RF disabled
Airplane mode
AT+CFUN=?
RF Function Status
Module Operation Mode
0
RF and (U)SIM disabled
Minimum functionality mode
1
RF enabled
Normal mode
