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Siemens Data Cable Schematic

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reflectarray

reflectarray

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siemens data cable schematics

Anyone knows about Data cable schematic for Siemens M55 / C55? It isn't USB data cable but serial data cable(DB-9). The cable will be used for GPRS not for flashing. I have schematic for flashing, but I hear that for GPRS the schematic is different.
Any help would be appreciated:D
 

usb data cable schematic

Hi
If you did not solve the problem check this site:

pinouts.ru/CellularPhones-A-N/bruce_pinouts_pinout.shtml

or contact me. I already work with Siemens GSM conected to PIC.
 

Re: usb data cable schematic

DraganM said:
Hi
If you did not solve the problem check this site:

pinouts.ru/CellularPhones-A-N/bruce_pinouts_pinout.shtml

or contact me. I already work with Siemens GSM conected to PIC.
Click to expand...


Hallow, i am trying with siemence A50.
1=ground, 5=Tx,6=RX.
But what i send reflected back.
suppose if i send 12345
it response 12345
what is the problem? will you tell me about the connection diagram
 

Re: usb data cable schematic

Depends from ATEn command you will have or not echo. You have it now and get back what you type (12345).
Check the command ATE.
ATE0 Deactivate command echo
ATE1 Activate command echo

Try simple AT you must get answer OK, until then there is a problem.
I send you schematic for connection PC - Siemens GSM , it is tested and works. Have a good work.

DraganM
 

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