MTX-DIN Family
www.mtxm2m.com
2015/10 v2.3
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MTX M2M® by MATRIX ELECTRONICA S.L.U
4.2
Plug-in 52-way 5mm pitch terminal block
4.2.1
Connector pinout
Every MTX-DIN modem has a 52-way terminal block where all the interface signals are available for
use by the user. There is a label in the device which explains the pinout of this connector, as you can
see in the following figure. Use it as a reference for the following sections
Pin Signal
Direction Description
1
VAC IN
Input
Power In 90-264VAC
2
VAC IN
Input
Power In 90-264VAC
3
POWER OFF
Input
Shutdown signal input
4
VDC OUT
Output
9V (max 500mA)
5
RL1COM
Relay 1 common contact
6
RL1NO
Relay 1 normally open contact
7
RL1NC
Relay 1 normally closed contact
8
RL2COM
Relay 2 common contact
9
RL2NO
Relay 2 normally open contact
10 RL2NC
Relay 2 normally closed contact
11 RL3COM
Relay 3 common contact
12 RL3NO
Relay 3 normally open contact
13 RL3NC
Relay 3 normally closed contact
14 RL7COM
Relay 7 common contact
15 RL7NO
Relay 7 normally open contact
16 RL7NC
Relay 7 normally closed contact
17 IN5/OUT5+
I/O
Optocoupled IO positive signal (HW selectable)
18 IN5/OUT5 -
I/O
Optocoupled IO negative signal (HW selectable)
19 IN6/OUT6+
I/O
Optocoupled IO positive signal (HW selectable)
20 IN6/OUT6-
I/O
Optocoupled IO negative signal (HW selectable)
21 GND
Ground connection
29 SPICS
Output
SPI chip select line
30 SPIDI
Input
SPI data in line
31 I2CCLK/SPICLK
Output
I2C clock signal / SPI clock signal
32 I2CDAT/SPIDO
Output
I2C data line / SPI data out line
33 Vext
Output
Voltage reference (3V, 50mA max.)
34 DAC_OUT
Output
Analog output
35 ADC2_IN
Input
Analog input 1
36 ADC1_IN
Input
Analog input 2
37 AGND
Analog Ground connection
38 IN10
Input
Optocoupled input 10
