Nos produits sont conçuset fabriqués en France
FAQ - Frequently Asked Questions
- Dialogue - I have no response to AT commands
- Dialogue - Make a product work only in 3-wire mode (TXD/RXD/GND)
- Dialogue - How can I change the dialogue speed of a product ercogener?
- Dialogue - How can I change the dialogue format of a product ercogener?
- RS232 - Speed limit of a serial port RS232
- USB - Speed limit of a USB port
- Dialogue - Prerequisite of dialogue with an external equipment
- RS232 - I don't have a RS232 serial port on my PC
- RS232 - Display the available COM Ports with Windows
- Windows drivers for USB-RS232 convertor ref.4503000000
Dialogue - I have no response to AT commands
Send the command ATI. If the product returns a response, check that this corresponds to the ercogener product
If no response is returned, try again with different speeds of Terminal (9600 bps to 115200 bps)
Check your serial cable, the RTS signal must be wired.
Dialogue - Make a product work only in 3-wire mode (TXD/RXD/GND)
By default, our GSM products generally have the flow control activated (AT+IFC=2,2) and require 5 signals to dialogue with a Terminal: RXD/TXD/CTS/RTS/GND
To ignore the flow control signals RTS/CTS and operate in 3-wire mode, disable the flow control with the command AT+IFC=0,0 followed by the backup AT&W
Dialogue - How can I change the dialogue speed of a product ercogener?
Most of our cellular products are set by default at 115200 bps. To change the dialogue speed, use the command AT+IPR=xxxxx
Example for 9600 bps : AT+IPR=9600
Change the Terminal speed at 9600 bps
Send the backup command AT&W
Please note : in order to validate the backup, some products also require the command AT+CFUN=16 (see the product documentation)
Dialogue - How can I change the dialogue format of a product ercogener?
By default our products are set with 8 bits/no parity/1 stop bit. To change the data format, use the command AT+IFC
Example 7 bits - even parity - 1 stop bit: AT+ICF=5,1 (see the product documentation)
Change the format in the Terminal
Send the backup command AT&W
Please note : in order to validate the backup, some products also require the command AT+CFUN=16 (see the product documentation)
RS232 - Speed limit of a serial port RS232
On a native serial port (except USB/RS232 converter), the maximum dialogue speed is 115200 bps
USB - Speed limit of a USB port
On a USB serial port or a "USB/RS232 converter", the maximum dialogue speed is 960000 bps
Dialogue - Prerequisite of dialogue with an external equipment
The speed and the data format must be the same for the equipment and the modem (Example: 9600 bauds, 8 bits no parity, 1 stop bit).
For the signals of the serial port, some equipment only work in 3-wire mode: RXD/TXD/GND
Other equipment also control the signals DTR and/or RTS, with or without hardware flow control
Some Terminals also require incoming signals to be able to work: CTS and/or DSR and/or DCD. All RS232 cables proposed in our catalogue have wired signals.
RS232 - I don't have a RS232 serial port on my PC
You can use our RS232/USB converter presented in the section Catalogue / Accessories
RS232 - Display the available COM Ports with Windows
On Windows, click on: Start >>> Configuration panel >>> Device Manager >>> Ports (COM and LPT)