Ri Signal; Dtr Signal; W_Disable# Signal - Quectel EC200T Hardware Design

WAKE#

3.10.1. RI Signal

The RI signal can be used to wake up the host. When a URC returns, there will be the following behaviors
on the RI pin after executing AT+QCFG="risignaltype","physical".

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 low 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

EC200T Mini PCIe provides a W_DISABLE# signal to disable or enable the RF function. 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 low can make the module
enter airplane mode.
The RF function can also be enabled or disabled through AT commands AT+CFUN, and the details are
as follows.
Table 12: Airplane Mode Controlled by Hardware Method
W_DISABLE#
High level
Low level
EC200T_Mini_PCIe_Hardware_Design
1 OC
High
Low
Figure 10: RI Behaviors
RF Function Status
RF enabled
RF disabled
EC200T Mini PCIe Hardware Design
status of the module;
Active low.
Output signal to wake up the host.
120ms
URC return
Module Operation Mode
Normal mode
Airplane mode
LTE Standard Module Series
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