Gpios - MTX -GTW Hardware User's Manual

6.2.3 GPIOs

The MTX-GTW-3G is able to support up to 4 GPIOs (IRQ capable) but they are multiplexed with other
interfaces. The following table shows the configuration of the DB15 connector and the multiplexed
interfaces
Pin Signal
13 GPI 1
9
GPI 2
15
GPI 3
11
GPO 1
*Mounting option
6.2.4 Accelerometer
The MTX-GTW-3G includes the LIS331DLH ultra low power high performance 3-axes I2C
accelerometer.
The following table shows the Accelerometer I2C configuration
I2C Bus Position
1 MTX-GTW
6.2.5 Antennas configuration
The MTX-GTW-3G-GPS has two external antenna connectors for the 3G and GPS interfaces. For the
WiFi interface an internal PCB antenna is used.
www.mtxm2m.com
Type Remark
Input Shared with RX2 signal (GPIO3_4)
Input Shared with RX1 signal (GPIO3_12)
Input Incompatible with Relay NA signal (GPIO2_26)*
Output Incompatible with Relay COM signal (GPIO2_24)*
Device
LIS331DLH
www.matrix.es
MTX Terminals® by MATRIX ELECTRONICA S.L.U
MTX-GTW
Address
0x19
2015/08 v1.6
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