Quectel EC200U-CN User Manual

LTE Standard Module Series
EC200U_Series_Hardware_Design 38 / 94
The timing of resetting module is illustrated in the following figure.
V
IL
≤ 0.5 V
VBAT
Module
Status
Running
RESET_N
Baseband restart
Baseband resetting
≥ 100 ms
Figure 16: Timing of Resetting Module
1. Ensure that there is no large capacitance exceeding 10 nF on PWRKEY and RESET_N.
2. It is recommended to use RESET_N only when the module cannot be turned off by AT+QPOWD or
PWRKEY.
3.8. (U)SIM Interfaces
The module provides two (U)SIM interfaces, and it supports DSDS function. The (U)SIM interfaces meet
ETSI and IMT-2000 requirements. Both 1.8 V and 3.0 V (U)SIM cards are supported.
Table 12: Pin Definition of (U)SIM1 Interface
Pin Name
Pin No.
I/O
Description
Comment
USIM_VDD
14
PO
(U)SIM card power supply
Either 1.8 V or 3.0 V (U)SIM card
is supported and can be identified
automatically by the module.
USIM_DATA
15
DIO
(U)SIM card data
USIM_CLK
16
DO
(U)SIM card clock
USIM_RST
17
DO
(U)SIM card reset
NOTE

Quectel EC200U-CN Specifications

General

Brand	Quectel
Model	EC200U-CN
Category	Control Unit
Language	English