4000 & 5000 Series User’s Guide
Always On & On Demand
When the modem is set to Always On, it will attempt to maintain a permanent connection to
the cellular network on its own. Most applications will require the modem to be remotely
accessible at any time, and will require the modem to be set to Always On.
When the modem is set to On Demand, the modem does not connect to the cellular network
unless told to by the attached terminal. If disconnected from the cellular network, it will not
attempt to reconnect. The most common On Demand scenario is when using the serial port in
order to establish a PPP session through a Dial-Up Networking (DUN) connection.
Unless you are sure the modem should be set to On Demand, the modem should be set to
Always On
.
4.2.2 Test the connection
Once you've finished entering the settings, and once a connection is established (depending on
the connection initiation behavior described above), navigate to
DIAG (Modem Diagnostic)
:
the modem’s
WAN IP
should be displayed as outlined in the figure below. This is the IP
address that has been assigned to the modem by the cellular carrier. At this time, the
modem’s LNK light will stay on as long as the connection is maintained.
Figure 10
Revision 1.5
Copyright © 2007 BlueTree Wireless Data Inc. Page 23 of 67
