Common Faults of serial port Modem

I. RG32 ModemCannot send messages?

1. Check whether the AT command is normal, the signal is normal, and the SIM card is in good contact.

2. Whether the SIM card is in arrears.

3. Check whether the baud rate of the RG32 modem is correct and whether the SIM card's SMS center number is correct.

4. Whether the used serial line is good (RG32 all serial lines are 232 interfaces 2. 3. Crossover lines ).

Ii. rG32 ModemCan I send but cannot receive information?

Check whether the storage is full (such as sim card or module ).

Iii. rG32 ModemWhen information existsSimWhy can't I read text messages?

Set at ^ ssmss = 1 in rs32.

Iv. rG32 ModemIs there a hardware conflict during Manual dialing?

1. Check whether the dial-up serial port is in use, whether the RG32 baud rate is correct, and whether the AT command is normal.

2. Whether the diagnosis is successful, and the hardware Throttling is none.

3. Check whether the additional initialization commands at + cgdcont = 1, "ip", and "cmnet" are entered correctly (generally in uppercase ).

V. rG32 ModemWhen dialing, it has passed verification, but appears777,743And other errors?

1. Check whether the SIM card is in arrears and whether the device signal is normal.

2. Restart your PC or switch to another PC for the next dial.

Vi. rG32 GSM DTUWhen you send a message to your mobile phone,Is the previous Chinese Character missing?

User serial port tool problems, replacing serial port tools, troubleshooting

Common Faults of serial port Modem