User Manual

SIM900 EVB User Guide
SIM900-EVB_UGD_V1.01 6 08.12.2009
Figure 2: EVB BOTTOM view
A: Source adapter interface
B: MAIN serial port for downloading, AT command transmitting, data exchanging
C: DEBUG serial port
D: SIM card interface
E: Test point interface
F: Antenna fix hole
G: SIM900-TE with SIM900 module interface
H: Module fix hole
I: Reset key ( reset the module )
J: Power key ( module ON/OFF control )
K: Charge switch ( charge ON/OFF control )
L: Download switch ( download control )
M: Power switch ( power ON/OFF control )
N: Headphones interface
O: Headset interface
P: Line in interface
Q: Status light