L-3 Communications Aydin Corporation 6000-8501900 ユーザーズマニュアル

ページ / 64
• P
AGE
 15
modem (To configure the Terminal as a modem you 
should use standard Windows modem configuration 
procedure).
There are two data connection methods available:
GPRS DATA - With GPRS you are not charged 
for the connection time but for your bandwidth 
usage (amount of data tranferred).  GPRS allows 
you to make only outgoing calls, such as an internet 
connection.  See Appendices A & B for instructions 
on how so set up a GPRS connection on your PC.
 GPRS services must be registered with your 
network operator in order to function.
GSM DATA - With GSM Data you are charged for 
your time online.  GSM allows both incoming and 
outgoing calls.  GSM Data connections are made the 
same way as with a standard modem with your PC 
configured for a fixed-line connection.
Since the GSM Terminal supports auto-bauding up 
to 57,600 bps, make sure that maximum speed of 
the PC modem is set to 57,600.
Also, you may need to use the following 
initialization string, “AT+CSNS=4”, to accept calls 
coming from outside of GSM network using single 
numbering scheme. 
 Your SIM card must support GSM Data in 
order to use this method.
Data Bearer Type Selection
The data bearer type selection dialing sequence 
selects the bearer service with a data rate and a 
service type to be used when making outgoing data 
calls.  Service type selection also applies to mobile 
terminated (incoming) calls if the Single Numbering 
Scheme is used.  For incoming calls, bearer type 
selection should match the network proposed service 
type. If the unit is set to Transparent only and 
the network proposes Non-Transparent only or vice 
versa, then the call is released.
The default setting is Data Circuit Asynchronous 
with Autobauding and Non-transparent only.  This 
dialing sequence updates the default bearer type 
values stored in the GSM Terminal and the selected 
V
OICE
/F
AX
/M
ODEM
 M
ODE