User's Manual

6.2 Connecting the Net and calling
(1) Connect the serial port line to the serial port 1, open the HyperTerminal (AT command
windows) on your personal computer, the location of the HyperTerminal in windows2000 is
START →accessory→ communication →HyperTerminal. Set the correct baud rate and COM
number firstly. The default baud rate of SIM508Z is 115200bps, and the COM number is based on
which port your serial port line inserts in, you should select such as COM1，COM3 or COMx etc;
(2) Connect the antenna to the SIM508Z module using an antenna transmit line, insert SIM card
into the SIM card holder, and insert headphone or handset into its interface; (acts as the figure 9)
(3) Power on the module referring the description in 6.1, then type the AT command (such as
ATI 、AT+ CSQ 、ATD112 in the AT command document) in the HyperTerminal. If you get the
correct response, it indicates the Hyper Terminal is successfully connected and the module is
working correctly.
About AT command and its response, please refer to the document of SIM508_ATC_V1.00.pdf.
6.3 Download and upgrade
Connect the serial port line to the serial port 1, connect the DC source adapter, run the download
flash tool and press the START key, then switch S2 to the ON state and S1 to the D/L state, and
then the download procedure or upgrade procedure is starting.
6.4 Turn off
Press the GSM_ON/OFF button Z1 for about 1 second, SIM508Z will be turned off.
6.5 Charge
Connect the SIM508Z module to the 80pin connector interface and the external battery to
charging interface provided on the EVB. Insert the DC source adapter; switch S2 to the OFF state
and S5 to the ON state, then the SIM508Z goes into the charging state.
6.6 GPRS start-up
（Please see the document of GPRS Startup_V1.00.pdf）
7 AT command
（please see the document of SIM508_ATC_V1.00.pdf）
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