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Pin
Signal
1
DCD 0
2
RD 0
3
TD 0
4
DTR 0
5
GND
6
DSR 0
7
RTS 0
8
CTS 0
9
VEXT
Features (when connected to ASC0)
•
Includes the data lines TD0 and RD0, the status lines RTS0 and CTS0 and also the modem
control lines DTR0, DSR0 and DCD0.
•
This port is primarily designed for controlling voice calls, transferring CSD, fax and GPRS data
and for controlling the GSM engine with AT commands.
•
Full Multiplex capability allows the interface to be partitioned into three virtual channels, but
with CSD and fax services only available on the first logical channel.
•
The DTR0 signal will only be polled once per second from the internal firmware of MTX-IoT.
•
The default configuration is 8 data bits, no parity and 1 stop bit. The setting can be changed
using the AT command AT+ICF and, if required, AT^STPB.
•
Can be operated at fixed bit rates from 1200bps to 921600bps.
•
Autobauding supports bit rates from 1.2kbps to 460.8kbps.
•
The default serial speed for MTX-IoT is 115200bps.
Features (when connected to ASC1)
•
Includes data lines TD0 and RD0 (2-wire/4-wire)
•
Includes the status lines RTS0 and CTS0 and supports hardware flow control (4-wire only)
•
Configured for 8 data bits, no parity and 1 or 2 stop bits.
•
Can be operated at fixed bit rates from 1200 bps to 921600 bps. Autobauding is not supported
on ASC1.
•
The default serial speed for MTX-IoT is 115200bps.
www.mtxm2m.com
Direction
Description
Output
Data carrier detected
Output
Received data
Input
Transmitted data
Input
Data terminal ready
-
Ground connection
Output
Data set ready
Input
Request to send
Output
Clear to send
Output
Output voltage reference (4V)
2017/07 v1.2
MTX M2M® by MATRIX ELECTRONICA S.L.U
MTX-xG-JAVA-IoT Family
/
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