Enfora GSM2218 - Manual (Page 19)

GSM2218PB001MAN - GSM/GPRS MT-GL User Manual Page 12
Copyright 2005, Enfora L.P
2.3 Installing Subscriber Identity Module (SIM) Card
The SIM, an integral part of any GSM terminal device, is a “smart card” that is programmed with
subscriber information. The user information consists of an International Mobile Subscriber Identity
(IMSI) number which is registered with the GSM/GPRS service provider and an encryption Ki
(pronounced “key”). This information consists of a microprocessor and memory installed on a plastic
card. A SIM card can be installed by simply inserting the SIM card in the SIM slot provided in the front
of the device. See Figure 10 - Inserting a SIM below.
Note:
The SIM card is not provided with the MT-GL device. The SIM must be obtained from
the GSM/GPRS service provider and must be provisioned by the operator for data
and/or voice. Always take care to protect the SIM. MT-GL’s GSM/GPRS related
functionality will not operate without the SIM installed.
!
Ensure the power to the MT-GL is disconnected before
inserting the SIM card. Failure to do so might result in
unusable MT-GL or a damaged SIM card.
Insert the SIM into the SIM Slot
with the notch going into the
slot first, and facing toward the
left side of the modem.
Figure 10 - Inserting a SIM