Quectel EC200U Series Hardware Design page 25

MAIN_RI 62
MAIN_DCD 63
MAIN_CTS 64
MAIN_RTS 65
MAIN_DTR 66
MAIN_TXD 67
MAIN_RXD 68
Debug UART Interface
Pin Name Pin No.
DBG_TXD 12
DBG_RXD 11
Auxiliary UART Interface
Pin Name Pin No.
AUX_RXD 137
EC200U_Series_Hardware_Design
Main UART ring
DO
indication
Main UART data
DO
carrier detect
DTE clear to send
DO
signal from DCE
DTE request to send
DI
signal to DCE
Main UART data
DI
terminal ready
DO Main UART transmit
DI Main UART receive
I/O Description
Debug UART
DO
transmit
Debug UART
DI
receive
I/O Description
Auxiliary UART
DI
receive
LTE Standard Module Series
V max = 0.45 V
OL
V min = 1.35 V
OH
V max = 0.45 V
OL
V min = 1.35 V
OH
V max = 0.45 V
OL
V min = 1.35 V
OH
V min = -0.3 V
IL
V max = 0.6 V
IL
V min = 1.26 V
IH
V max = 2.0 V
IH
V min = -0.3 V
IL
V max = 0.6 V
IL
V min = 1.26 V
IH
V max = 2.0 V
IH
V max = 0.45 V
OL
V min = 1.35 V
OH
V min = -0.3 V
IL
V max = 0.6 V
IL
V min = 1.26 V
IH
V max = 2.0 V
IH
DC Characteristics Comment
V max = 0.45 V
OL
V min = 1.35 V
OH
V min = -0.3 V
IL
V max = 0.6 V
IL
V min = 1.26 V
IH
V max = 2.0 V
IH
DC Characteristics
V min = -0.3 V
IL
V max = 0.6 V
IL
V min = 1.26 V
IH
1.8 V power domain.
If unused, keep it
open.
Connect to DTE's
CTS.
1.8 V power domain.
If unused, keep it
open.
Connect to DTE's
RTS.
1.8 V power domain.
If unused, keep it
open.
1.8 V power domain.
Pull-up by default.
Low level wakes up
the module.
If unused, keep it
open.
1.8 V power domain.
If unused, keep it
open.
1.8 V power domain.
If unused, keep it
open.
1.8 V power domain.
If unused, keep it
open.
Comment
1.8 V power domain.
If unused, keep it
open.
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