15
MTX-GTW II | 2017/12
MTX © by MATRIX ELECTRONICA S.L.U.
mtxm2m.com | [email protected]
The following table show the configuration of the DB9 Female (DCE) connector of the COM1 interface.
PIN
SIGNAL
TYPE
REMARK
2
TXD1
O
Transmit Data
3
RXD1
I
Receive Data
5
GND
P
GROUND
6
IN_RS
I
Not standard extra input
7
CTS1
I
Clear to Send
8
RTS1
O
Request to Send
PIN 1
1.1.4 COM2
The UART5 interface of the iMX6UL-IND/IOT drives the RS232 interface of the MTX-GTW II by default. The
ST ST3232EBDR is used as a driver.
iMX6UL
DB9 M
COM2
ST3232