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The following table show the configuration of the DB9 Male (DTE) connector of the COM2 interface.
PIN
SIGNAL
2
RXD1
3
TXD1
4
DTR_PWR
5
GND
7
RTS1
8
CTS1
9
PWR_AUX
COM1 (female) and COM2 (male) connectors are joined in a combo 2xDB9 connector.
MTX-GTW II | 2017/12
MTX © by MATRIX ELECTRONICA S.L.U.
mtxm2m.com | gsmsupport@matrix.es
TYPE
REMARK
I
Receive Data
O
Transmit Data
O
4.3 V or GND OUTPUT
P
GROUND
O
Request to Send
I
Clear to Send
O
DTR_PWR or OPEN
PIN 1
17
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