Datasheet

GM862-QUAD GSM Module GSM BOOSTER board
2 audio paths, Handsfree(HF) and Handset(MT) 1 audio path and 4 SMD jumpers to choose between HF and MT
AXE pin for Handsfree switching Not Connected
CHARGE pin - Battery charger input Not Connected
ON/OFF pin Not Connected
PWRMON pin - Module status ON indication 2.8V stabilized output / Power ON monitor
GPI1 - General purpose input 1 Not Connected
GPO2 - General purpose output 2 GPIO2 - Congurable general purpose I/O 2
GPIO8 - Congurable general purpose I/O 8 Not Connected
GPIO9 - Congurable general purpose I/O 9 Not Connected
GPIO10 - Congurable general purpose I/O 10 Not Connected
GPIO11 - Congurable general purpose I/O 11 Not Connected
GPIO12 - Congurable general purpose I/O 12 Not Connected
GPIO13 - Congurable general purpose I/O 13 Not Connected
STAT_LED pin GPIO8/ STAT_LED
SIMIN pin Not Connected
Dierence between GM862-QUAD and GSM Booster
page 4
GSM BOOSTER
Figure 3: GSM Booster