MTX-IND-V2 Industrial Featured GSM-GPRS terminal modem http://www.matrix.es
MTX-IND-V2 User Manual V.1.1
Page. 19
Subject to change without prior notice
The card holder is a six wire interface according to GSM 11.11. Two pins have been added to detect
whether or not the SIM card drawer is inserted.
Removing and inserting the SIM card during operation requires the software to be reinitialized. Therefore,
after reinserting the SIM card it is necessary to restart MTX-IND-V2 Terminal.
The full operation of the MTX-IND-V2 relies on a SIM card being inserted. Some MTX-IND-V2 functionality
may be lost if you try to operate the control terminal without a SIM card.
3.6 MAIN Serial Interface Port ASC0
RS232/RS485/RS422
The modem by default supports a standard RS232 serial interface (EIA/TIA 574) via the following block
pins shown below:
The RS232 can be changed to RS485 and RS422 interfaces with internal jumpers selectors.
The RS485 and RS422 can be configured as open bus or ended with a 120 ohm resistor.
Block pin number
Description
Block pin 47
GND RS232 ASC0
Block pin 48
TX/TX+ RS232/RS485/422 ASC0
Block pin 49
RX/RX- RS232/RS485/422 ASC0
Block pin 50
CTS/RX+ RS232/RS485/422 ASC0
Block pin 51
RTS/TX- RS232/RS485/422 ASC0
Block pin 52
RING ASC0
