In the hyper-terminal Connection window Type AT and Press
Enter OK response you get ready to Use Modem.
4
f) Through Hyper Terminal dial to a GSM/PSTN modem or another GSM Modem
connected to Another PC (Insert a SIM card which has a Data number).
Eg.: Data Number : ATD9849289751
g) “Connect 9600” is displayed on Hyper Terminal screen after connection is established
h) Transfer any data by typing through keyboard. It should appear on the other PC to
which we are dialing.
i) To disconnect the modem, Enter +++ and ATH command. If 'OK' response is seen, then
modem is disconnected.
Baud Rate Change Settings:
a) Connect the modem to PC serial port
b) Open the Hyper terminal with proper settings as shown above and type
AT+IDR= <
required baud rate
> <
Enter
>
c) In Hyper terminal menu call shows disconnected.
d) Now, go to File>>Properties>>Configuration>>Select baud rate from list and apply.
e) In Hyper terminal enter the command to Save the changed baud rate as
AT&W
9 Pin ‘D’ type (Female) Pin details
Pin No.
Description
Type
1
DCD
o/p
2
Tx
o/p
3
Rx
o/p
4
DTR
o/p
5
G
–
6
DSR
o/p
7
RTS
o/p
8
CTS
o/p
9
R1
o/p
