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the modem to the Internet. Dial-up Networking uses the
3G Modem
port described
below to make this connection. The ports and their common uses are explained below.
The Modem port is labelled
Huawei Mobile Connect – 3G Modem
. It is used for
general purpose control and monitoring of the modem. You can send AT commands,
receive unsolicited messages, and establish a connection on this port. To find the actual
port number go to the
Control Panel
and click on
Phone and Modem
and select the
Modem
tab. The modem will be installed as a
Huawei Mobile Connect Modem
and the
com port number will be listed next to the modem.
The port labelled
Huawei Mobile Connect – 3G Network Card
port is an ECM
(Ethernet Control Model) port and is used when you want to send Ethernet over USB.
For more information about creating ECM connections, please see the Huawei MU609
Application Guide. This guide is available from
www.zoomtel.com/4575support
. To find
the USB port number for this port, go to
Device Manager
and look at
Network
Adapters
.
The port labelled
Huawei Mobile Connect – 3G PCUI
port is used to send AT
commands to the modem. This port can be used to control the modem using AT
commands and to monitor the status of the modem when using the ECM
port. To find the
USB port number for this port, go to
Device Manager
and look at
Ports
.
The port labelled
Huawei Mobile Connect – Control Interface
is used for GPS AT
command interaction as well as receiving positioning data back from the modem. If you
want to receive NMEA positioning data, use the
Huawei Mobile Connect – 3G GPS
Interface
port. The
3G GPS Interface
port only reports data, and no AT commands are
accepted. For more information about using the modem’s built-in GPS features, please
see
Chapter 5 - Using GPS
. The USB port numbers for these two ports are listed in
Device Manager
under
Ports
.
The port labelled
Huawei Mobile Connect – 3G Application
port is reserved.
You may connect to multiple ports at once depending on your application. For example if
you are using the GPS functionality of the modem, you may be receiving this data on the
Control Interface
and
3G GPS Interface
ports. You may then be reporting this data
back to a server over either the
3G Modem
or
3G Network Card
ports.
•
To learn how to establish a data connection using either your application’s
protocol stack or the modem’s built-in IP stack, refer to
Chapter 4 – Establishing a
Data Connection
.
•
To learn how to use your modem with SMS messaging, refer to
Chapter 5 –
13