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• If the PIN code is activated and equal to “0000”: when the gateway is red up for the rst
time, a new PIN code is attributed to the SIM card. This PIN code is dened on the basis of the
ICCID (Integrated Circuit Card Identication) number of the SIM card installed. It is calculated
using a proprietary Webdyn algorithm. This feature allows fraudulent use of the SIM card to be
prevented, while providing ease of use.
• If the PIN code is activated and different to “0000”: GPRS communication is not operational
for the gateway.
In addition, this same SIM card can be reused in another WebdynModBus, WebdynSun, WebdynPulse,
or WebdynTIC unit without any additional conguration. If the card has a PIN code that is activated but
is neither “0000” nor the code attributed by the WebdynModBus gateway, communications (including
SMSs) will not be operational.
Never insert a SIM card with an activated PIN code that is neither “0000” nor a value attributed
by a WebdynModBus, WebdynSun, WebdynPulse, or WebdynTIC. If you do so, the SIM card will be blocked
and the user will have to unblock it by entering the PUK code manually.
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