Galaxy Flex Installer Manual
Appendix G: Peripherals
227
GSM & GPRS Set up
Once the module is installed an configured onto the system it must be set up correctly in
order to work on the required GSM or GPRS channels. This is achieved via the module’s
Network configuration menu
[56.3.2.3]
and the Communication module Diagnostic menu
[61.1.6]
Network Setup
Ensure that a valid SIM card is installed in the GSM module. If a SIM card has just been
inserted it may take a minute or two for the SIM card to become active in the module.
Normally, the module will attempt to connect to the default network automatically and no
further action is required. However, in some cases some manual programming can be
required if the SIM card does not provide the correct data automatically. The provider of the
SIM card will be able to help with this. The following fields may need attention if the GSM
and GPRS connections do not work.
APN, Network 1 [56.3.2.3.2]
This field defines the Access Point Name for GPRS connection only. In many cases this
does not need to be specified but some networks require it. It is not provided by the SIM
card. If there are problems with the GPRS connection then enter the APN for the provider of
the SIM card. The APN for most networks can be found on-line and from the provider of the
SIM card..
PLMN, Network 1 [56.3.2.3.1]
This field defines the network that the module will connect to. If you know the PLMN code
for the network you need, enter the code here it will overrule the default settings in the SIM
card and force it onto a specific network. This will affect both GSM and GPRS connection.
Warning
: Entering an incorrect PLMN may result in either no connection at all or
connection to the wrong network resulting in high service charges
Login [56.3.2.3.3] and Password [56.3.2.3.3]
For certain networks a Log-in and password are required for GPRS. Only enter these if
instructed by the service provider.
Centre Number [56.3.2.3.5]
This is the Message Centre number used for SMS signalling. This normally pre-
programmed on the SIM card. Entering a new number here will over-write the value in the
SIM card. Please check with the SIM Service Provider if you need to change this.
