MTX -3G-JAVA series User Manual page 60

Please take care with the following points:

Each GPIO port (Pxx port) can be configured as an input (Hi‐Z) or output (strong drive push‐
pull drivers)

Interrupt available, generated by any rising or falling edge of the port inputs in the input
mode. This line is connected to GPIO8 of the EHS6 module.

When optoisolated I/Os are available, you always must assure that:
o RS485 models:


o Rest of models:


*: see Section 4.4.1 for exact location of pins in DB15 connector
The electrical equivalent circuits for GPIOs connected to the DB15 connector for all MTX‐3G‐JAVA
family modems are shown in the following figure
www.mtx‐terminals.com
GPIO 4 and GPIO 8 are configured as outputs
GPIO 7 and GPIO 10 are configured as inputs
GPIO 4, GPIO 6 and GPIO 8 are configured as outputs
GPIO 5, GPIO 7 and GPIO 10 are configured as inputs
GPIO equivalent circuit
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MTX M2M® by MATRIX ELECTRONICA S.L.U
MTX‐3G‐JAVA Family
2015/10 v1.6 Page 60
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