Telit Wireless Solutions ME910G1 Series User Manual

ME910G1 HW Design Guide
1VV0301593 Rev.3 Page 54 of 97 2020-03-24
NOTE:
According to V.24, some signal names are referred to the application
side, therefore on the ME910G1 side these signal are on the opposite
direction:
TXD on the application side will be connected to the receive line
(here named C103/TXD)
RXD on the application side will be connected to the transmit line
(here named C104/RXD)
For a minimum implementation, only the TXD, RXD lines can be
connected, the other lines can be left open provided a software flow
control is implemented.
In order to avoid a back powering effect it is recommended to avoid
having any HIGH logic level signal applied to the digital pins of the
ME910G1 when the module is powered off or during an ON/OFF
transition.
5.7.3.2. Modem serial port 2
The secondary serial port on the ME910G1 is a CMOS1.8V with only the RX and TX
signals.
The signals of the ME910G1 serial port are:
PAD
Signal
I/O
Function
Type
NOTE
D15
TX_AUX
O
Auxiliary UART (TX Data to
DTE)
CMOS
1.8V
Shared
with
SPI_MOSI
E15
RX_AUX
I
Auxiliary UART (RX Data from
DTE)
CMOS
1.8V
Shared
with
SPI_MISO

Telit Wireless Solutions ME910G1 Series Specifications

General

Brand	Telit Wireless Solutions
Model	ME910G1 Series
Category	GSM/GPRS Modules
Language	English