Smart Machine Smart Decision
SIM868_Series_Hardware_Design_V1.06 8 2017-07-13
FIGURE 47: CONNECTION FOR SOFTWARE UPGRADING IN ALL-IN-ONE MODE........................................... 50
FIGURE 48: 1PPS APPLICATION CIRCUIT ................................................................................................................. 51
FIGURE 49: GNSS PASSIVE ANTENNA MATCHING CIRCUIT ............................................................................... 51
FIGURE 50: GNSS ACTIVE ANTENNA MATCHING CIRCUIT ................................................................................. 52
FIGURE 51: PIN ASSIGNMENT .................................................................................................................................... 56
FIGURE 52: TOP AND BOTTOM VIEW OF SIM868 ................................................................................................... 63
FIGURE 53: TYPICAL SOLDER REFLOW PROFILE OF LEAD-FREE PROCESS .................................................. 63
FIGURE 54: PACKAGING INTRODUCE ...................................................................................................................... 65
FIGURE 55: MODULE TRAY DRAWING ..................................................................................................................... 65
FIGURE 56: SMALL CARTON DRAWING................................................................................................................... 66
FIGURE 57: BIG CARTON DRAWING ......................................................................................................................... 66
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