MTX-IND-V2 Industrial Featured GSM-GPRS terminal modem http://www.matrix.es
MTX-IND-V2 User Manual V.1.1
Page. 16
Subject to change without prior notice
All electrical connections to the module are protected in compliance with the standard air and contact
Electrostatic Discharge (ESD).
3.1 Power
Pin 1 and 2 are used to power the MTX-IND-V2. It can be VDC or VAC powered without needing to
configure anything. Just apply the VCC or VAC voltage.
The supply voltage, VCC or VAC required by the modem is in the range 120-370 VDC and 90-264 VAC. The
power supply has to be a single voltage source capable of providing a peak during an active transmission.
The uplink burst causes strong ripples (drop) on the power lines.
Application of the supply voltage does switch the modem on.
Automatic restart after shutdown feature:
This allows an application to always be switched on; it will be able to restart by itself.
The terminal will not need an external ignition to be powered up and it will be powered up 100% time if
power is applied. An internal LED will light when power is present.
The MTX-IND-V2 can charge an internal Ion-Li 3.7V 1600mA/h battery which means that it can operate for
a few hours without external power. When external power is applied, the battery is being charged.
Note. It is possible to apply power at the 1-2 pins and 3-GND at the same time. This allows you to connect
a sealed battery on pin 3 so it will be able to operate if there is a fault with the mains.
Output 24VDC at pin 4 is only present when mains power is applied.
PIN: Signal
Dir
Limits
Description
1
VAC / VCC
Input
120-370 VDC
90-264 VAC
MAIN power input
2
VAC / VCC
Input
120-370 VDC
90-264 VAC
MAIN power input
3
VIN 9-30 VDC Input -
24 VDC Type Input power
4
24V OUT
Voltage
Output
Max 0,5 A
+24 VDC Output when mains applied
