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• ：ETSI TS 102 221: ’Smart Cards; UICC-Terminal interface; Physical and logical characteristics’ETSI TS 102 221: ’Smart Cards;Card Application Toolkit (CAT)’ETSITS131.111 (3GPP TS 31.111) USIM Application Toolkit(USAT)UICC multi-application platformNew LTE data fields implementedThree applications: Test SIM, Test USIM, Test ISIMBased on Java CardTM Open Platform technology1.8V / 3V / 5V128K EEPROMAPIN 1 disabledGSM XOR/3G test alg..

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• UMTS security variables within the USIM match the default 
• Setup time is reduced because the USIM is configured with the same default IMSI and PLMN values broadcast from the Wireless Test Set.
• For dual-mode testing, GSM speech loopback is supported for GSM Bit Error Ratio (BER) measurements.

 USIMs support operating voltages of 1.8, 3 and 5 volts (class AB) and are based on the Gemalto "GemXplore 3G V2.2"If desired, you can further modify the USIM's settings using the Gemalto "GemXplore Admin for 2G (with GemXplore 3G Option)" software, which you must purchase separately from Gemalto.