Enfora GSM2218 ユーザーズマニュアル

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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