Sierra Wireless MP 700 Series, Command Reference Manual

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Modem Basics
Host connection basics
Hardware structure
The MP 700 Series GPS has two main components: the
AirCard® wireless network card and the controller board.
Each of these components has its own firmware (resident
software). There is a serial link between the AirCard and the
controller board.
All AT commands that begin with
AT!MP
are handled by the
controller board and all others are handled by the AirCard.
It is important to recognize these two command types because
during
modem-to-network connections, the MP 700 Series GPS
does not respond to AirCard AT commands. (That is, only
AT!MP
commands will work.) This means that it is not possible
to, for example, check the signal strength using the command
AT!RSSI?
during a modem-to-network connection.
Host and network connections
When the MP 700 Series GPS is used to access Internet services
or retrieve data over a VPN connection, two connections are
required: the
host-to-modem connection and the modem-to-
network connection.
Modem-to-network
connection
Host-to-modem
connection
Rev 3.2 Oct.05 13