Rj11 (All Other Models) - MTX -3G-JAVA series User Manual

4.1.4 RJ11 (all other models)
An RJ11 6‐way connector, as shown and described below, serves as a means of supplying and
controlling DC power to the modem.
The power supply voltage (VCC) required by the modem is in the range of 6.5 to 40VDC. We
recommend a 12V DC power supply. The power supply has to be a single voltage source capable of
providing a current peak during an active transmission. The uplink burst causes strong ripples (drop)
on the power lines.
By default, MTX‐3G‐JAVA devices are shipped to automatically switch on only with supply at PIN 1
and PIN 6. If you disable the "Automatic power up" feature you will need to use the additional active‐
low control signal TURN_ON, which must be applied for a time of 0.2 seconds or greater.
Pin Signal
1 VIN
2 OUT4
3 TURN_OFF
4 TURN_ON
5 IN4
6 GND
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Direction Limits
Input 6.5‐40VDC
Output Vmax: VIN
Input 0‐VIN
Input 0‐VIN
Input 0‐VIN
Input
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MTX M2M® by MATRIX ELECTRONICA S.L.U
MTX‐3G‐JAVA Family
Description
Positive power input
Opto‐isolated output GPIO6 + Red LED
Logic 0: Hi‐Z
Logic 1: Active = VIN‐0.2
Opto‐isolated active low control line used to switch off or
reset the modem
Power off: t >10ms
Opto‐isolated active low control line used to switch on the
modem (only when automatic restart is disabled)
Power on: t >0.4s
Opto‐isolated input GPIO5
7 to VIN: logic 0
Negative power (ground)
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