MTX-GTW
www.mtxm2m.com
www.matrix.es
2015/08 v1.6
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MTX Terminals® by MATRIX ELECTRONICA S.L.U
The following tables show the configuration of the DB15 of the RS232/485/422 interface (DTE
interface).
DB15 Connector pinout:
Pin
Signal
Type
Remark
2
RXD0
I
Receive Data
3
TXD0
O
Transmit Data
7
RTS0
O
Request to Send
8
CTS0
I
Clear To Send
14
GND
P
Ground
5.1.1.4
RS232 1
The AUART3 interface of the TQMA28 drives the RS232 interface of the MTX-GTW by default. The
Maxim MAX3222 is used as a driver.
Transfer rate:
Up to 250Kbit/s
Interface on module: AUART3
Handshake:
None
ESD protection:
±15kV human body model
The following tables show the configuration of the DB15 of the RS232_1 interface.
DB15 Connector pinout:
Pin
Signal
Type
Remark
4
TXD1
O
Transmit Data
9
RXD1
I
Receive Data
14
GND
P
Ground