Westermo MR Series - Manual (Page 291)

291 6622-3201
Web Interface and Command Line Reference Guide www.westermo.com
Confi gure > W-WAN 4.102
Wirelss WAN functionality is only available on models that are fitted with a wireless WAN module,
such as CDMA, GPRS, 3G, HSDPA etc. This module is connected to one of the ASY ports (and USB
controller on some models) and is controlled by the router using “AT” commands (in the same way
as a modem). Any further references to W-WAN technologies such as CDMA, GPRS, 3G etc will be
refered to as GPRS, GSM, 3G or simply ‘wireless’ networks.
W-WAN modules provide always-on wireless data connectively over the GSM network at speeds of
up to 7.2Mbps. This means that the unit can be used in situations where no ISDN or xDSL service
connection is available. In addition, wireless can be used to send or receive SMS alert messages (as
an alternative to emails for issuing remote alert messages or for automating remote configuration
of deployed units).
Before attempting to connect to a wireless service, you need to set several parameters specific to
your mobile network operator. It will be useful to have the following information to hand:
Your assigned APN (Access Point Name)
PIN Number for your SIM card (if any)
Username and password
Note:
Some SIMs require that a username and password are used in addition to the APN. These are
not always pre-defined i.e. any “made-up” username or password will suffice. If you suspect that
this is the case for your SIM then please enter a username and password into the username
and password parameters for the W-WAN PPP instance.
Once your W-WAN unit is correctly configured you can check to see if it has obtained an IP
address from the network by navigating to the Status > PPP > PPP x page (where x is either 1 or
3 depending on the model) and checking the IP address parameter. (It should contain an IP address
other than 0.0.0.0 or 1.2.3.4).
Additionally you can check that the SIM is working correctly and also check the signal strength by
navigating to the Status > W-WAN page.
Using the Web Page(s)
Note:
If your unit has more than one SIM card slot, the following parameters will appear on the
Configure > W-WAN > SIM n pages.
APN:
When using a W-WAN router, you must inform the mobile network which remote host you
wish to connect to. You do this by specifying an Access Point Name (APN). Your network pro-
vider or your system administrator will provide this information if you have a private APN.
Often this will look like an Internet address such as “isp.vodafone.ie”, but can also be a simple
text string such as “orangeinternet” or “internet”. Be sure to enter this correctly otherwise you
will be unable to make a connection to the network.
Static IP address:
You can specify an IP address associated with the APN.
Use back-up APN:
This parameter is used to turn the Backup APN facility “On” or “Off”.
Back-up APN:
This parameter may be used to specify an alternative service APN for use in the event that the
unit cannot connect using the primary APN specified by the APN parameter. The unit will only
use this APN if the primary APN fails and the Use backup APN parameter is enabled.