[JAZZ WITH HUAWEI MODEM]

Connecting only tx, rx and gnd they work very well. (m90 schema)

[JAZZ WITH HUAWEI MODEM]

HI EMIL Thank you for responding. MY MODEM HAS STANDARD AT COMMAND. IT'S WORK VERY WELL WITH M90 AND VISION PLC. I ASK YOU THE RANGE VOLTAGE OF JZ-PRG AND IF I CAN USE OUTSIDE POWER. THANKS

[JAZZ WITH HUAWEI MODEM]

HI I'M TESTING A NEW GSM MODEM AND I saw that the JZ-PRG SERIAL DOES NOT WORK. THE MODEM IS HUAWEI GTM900. I USE A 6 WIRE STANDARD CABLE Properly CONNECTED HOW TO SCHEMA FOR SIEMENS MODEM AND CONNECT THE POWER OF JZPRG ON 1 AND 6-7 PIN OF MODEM. I noticed that THE VOLTAGE ON THE PIN IS 0,10V WITH SERIAL CONNECTED OR WITHOUT. I MADE THE COMPARISON WITH A MODEM WAVECOM AND I HAVE SEEN THAT WHEN I CONNECT THE MODEM WITH JZ-PRG THE voltage drops to 0.03 V. DO I HAVE CONNECT A RESISTANCE? IF IT'S YES WHAT'S IT TYPE. I DID ANOTHER TEST I GAVE VOLTAGE TO JZ-PRG OF WAVECOM AND I CONNECT THE GND AND TX RX OF HUAWEI. THE PLC DID THE INITIALIZATION AND IT WAS SENT AND RECEIVED SMS. SURELY it is a JZ-PRG power problem.