Westermo MR Series - Manual (Page 292)

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Web Interface and Command Line Reference Guide www.westermo.com
Backup static IP address:
This parameter may be used to specify an IP address associated with the Backup APN for use
when the unit cannot connect using the primary Static IP address.
Retry APN time (mins):
If the Use backup APN parameter is enabled, this parameter is used to define how long the unit
will use the backup APN before attempting to revert to the primary APN.
PIN:
Some SIM cards are locked with a Personal Identification Number (PIN) code to prevent misuse
if they are lost or stolen. Your GSM operator should be able to tell you if your SIM has a PIN
code as supplied.
If you enter a PIN code in this field, the unit will try to unlock the SIM before attempting to
connect to the network.
Note:
The PIN code is not shown for security reasons and it is essential that you enter this correctly
as three incorrect attempts will usually block the SIM card from use. In this event, you will
need to remove the SIM card from the unit and insert it into a mobile phone then enter the
Personal Unblocking Key (PUK), which can be obtained from the network operator.
Confirm PIN:
Enter the PIN again in this field to confirm it.
PUK: / Confirm PUK:
If known, the SIM PUK code can be entered in these fields. If the router detects that a PUK is
required due to a locked SIM, this number will be sent to the SIM. A SIM PIN must also be con-
figured for the PUK parameter to take affect.
Initialisation string :
These parameters (Initialisation string 1, Initialisation string 2, etc.) allow you to specify a
number of command strings that are sent to the wireless module each time a wireless connec-
tion is attempted. These can be used to set non-standard wireless operating modes. Each string
is prefixed with the characters “AT” before being sent to the wireless module and they are sent
to the wireless module in the order specified until an empty string is encountered. For example,
Initialisation string 3 will not be sent unless Initialisation string 1 and Initialisation string 2 are
both specified. Initialisation strings are not normally required for most applications as the unit
will normally be pre-configured for correct operation with most networks.
Network preference/locking string:
This parameter can be used to specify the mobile network to try to connect to first or to lock
to. Using the Preferred and Lock buttons in the webpage Status > W-WAN module will auto fill
this parameter.
Hang-up string:
In a typical wireless application the connection to the network is “always on” and under normal
circumstances it is not necessary to hang-up the wireless module. Under certain circumstances
however, the router may use the “ATH” command to try and disconnect the wireless module
from the network, e.g. if an incorrect APN has been specified and the module is unable to attach
to the network correctly.
This parameter allows you to specify an alternative hang-up string that is sent to the wireless
module when disconnecting a call. As with the Initialisation strings, it is not necessary to include
the “AT” as this is inserted automatically by the router.
Post Hang-up string:
This parameter allows you to specify additional “AT” commands that is sent to the wireless
module after it has been disconnected. As with the Initialisation strings, it is not necessary to
include the “AT” as this is inserted automatically by the router.