Illustration; Running; Connecting Net And Calling; Downloading - SimCom SIM900D EVB User Manual

SIM900D EVB User Guide

6. Illustration

6.1 Running:

(1) Connect the SIM900D-TE with SIM900D module to the 60pins connector on SIM900D
EVB, inserting 5V direct current source adapter, switching the S101,S102 switch on off
state, S105 switch on ON state;
(2) Press the PWRKEY for about 2 second, and then SIM900D module begins running.
You can see the light Q3 on the EVB flashing at a certain frequency. By the state, you can
judge whether the EVB and SIM900D can run or not. No function and test can be executed
when we have not connected necessary accessories.
Notice: You should equip the four sets of screws before you start to test the module to achieve a
better character.

6.2 Connecting Net and calling

(1) connect the serial port line to the MAIN serial port, open the HyperTerminal(AT
command windows) on your Personal computer, the location of the HyperTerminal in
windows2000 is START→accessory→communication→HyperTerminal. Set correct
Baud Rate and COM number. The Baud Rate of SIM900D is 115200, and the COM
number based on which USB port your serial port line insert in, you should select such
as COM3 or COM4 etc.
(2) Connect the antenna to the SIM900D-TE with SIM900D module using an antenna
transmit line, insert SIM card into the SIM card interface, insert headphones or headset
into its interface.
(3) Act on the step of
AT command in the HyperTerminal, and then the SIM900D module will execute its
corresponding function.

6.3 Downloading

Connect the serial port line to the MAIN serial port, connect the direct current source adapter, run
the download program and press the START key, then switch the S105 switch on ON state, S102
switch on ON state, then EVB provide the function of downloading.

6.4 Turns off

Turn off SIM900D module: press the PWRKEY for about 2 second, SIM900D module will be
turned off.
SIM900D-EVB_UGD_V1.01
running
which mentioned above, power on the system, typing the
19 01.07.2010