Quectel SC20 User Manual

LTE Module Series
Smart EVB User Guide
Smart_EVB_User_Guide Confidential / Released 5 / 29
Figure Index
FIGURE 1: INTERFACE OVERVIEW ................................................................................................................. 9
FIGURE 2: EVB TOP VIEW ............................................................................................................................... 11
FIGURE 3: EVB ACCESSORIES ...................................................................................................................... 12
FIGURE 4: SIMPLIFIED POWER SUPPLY SCHEMATIC ................................................................................ 13
FIGURE 5: POWER INTERFACE ..................................................................................................................... 14
FIGURE 6: USB INTERFACE CIRCUIT ............................................................................................................ 14
FIGURE 7: LOUD SPEAKER CIRCUIT ............................................................................................................ 15
FIGURE 8: EARPHONE CIRCUIT .................................................................................................................... 16
FIGURE 9: PIN ASSIGNMENT OF J702 ........................................................................................................... 16
FIGURE 10: THE SKETCH OF AUDIO JACK ................................................................................................... 17
FIGURE 11: MIC AND SPEAKER CIRCUIT ...................................................................................................... 17
FIGURE 12: SCHEMATIC OF SIMPLIFIED USIM CARD INTERFACES ......................................................... 18
FIGURE 13: PINS ASSIGNMENT OF USIM CARD HOLDER .......................................................................... 18
FIGURE 14: UART BLOCK DIAGRAM ............................................................................................................. 19
FIGURE 15: MAIN UART PORT (J901) ............................................................................................................ 20
FIGURE 16: SWITCHES AND BUTTONS ........................................................................................................ 21
FIGURE 17: STATUS LEDS .............................................................................................................................. 22
FIGURE 18: PINS ASSIGNMENT OF J904 ...................................................................................................... 23
FIGURE 19: MENU ON LCM ............................................................................................................................ 25
FIGURE 20: SELECT THE USB PORT TO UPDATE FIRMWARE ................................................................... 27
FIGURE 21: SMART EVB AND ACCESSORIES ASSEMBLY .......................................................................... 28
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Quectel SC20 Specifications

General

Brand	Quectel
Model	SC20
Category	Control Unit
Language	English