On-board resources: LM2576 power, MAX3232 chip-level conversion, 11.0592M active crystal, ATMEGA128L, FM32256 (Ferroelectric), slide-type SIM card connector, 40PZIF connectors, communications module supports CM320, TC35i, MC35i, MC39i , GTM900A/B modules. Usage: 1, non-welding as well as the M128 and FM32256 crystal will bridge resistor R29, R30, R31 welding, that is the standard serial wireless MODEM, according to the different modules can support GPRS and CDMA, of course, can be used as a cat or GSM SMS cat to use it. 2, welding on the M128 chipset, FM32256 can decide whether or not the use of actual needs, in addition to supporting the application of the above model, but also do not need to make PC transparent transmission module, the realization of single-chip or a number of non-computer equipment to transmit data wireless Internet access requirements.

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