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9 pin D-SUB male connector layout
Разъем 9 pin D-SUB male
at the computer
Complex GSM box, including MBUS support. Should work with Ericsson, Siemens, Panasonic, Sagem, Sony, Alcatel, Motorola, Nokia, Bosch.

universal mobile cellular cable or data-cable

This scheme is some kind of RS-232 Converter.

Almost all digital devices we use require TTL or CMOS logic levels. Thats why the first step when trying to connect the device to RS-232 port is transformation of RS-232 levels ack into 0 and 5 Volts. This is done by RS-232 Level Converters, like a Max 232.

 

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На распиновку GSM all-in-one (GSM box by Pepe) schematic есть 2 отзыв(а): 2 положительных и 0 отрицательных.

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