17
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 Male (DTE) connector of the COM2 interface.
PIN
SIGNAL
TYPE
REMARK
2
RXD1
I
Receive Data
3
TXD1
O
Transmit Data
4
DTR_PWR
O
4.3 V or GND OUTPUT
5
GND
P
GROUND
7
RTS1
O
Request to Send
8
CTS1
I
Clear to Send
9
PWR_AUX
O
DTR_PWR or OPEN
PIN 1
COM1 (female) and COM2 (male) connectors are joined in a combo 2xDB9 connector.