User's Manual

EGSM900 925 ～ 960MHz 880 ～ 915MHz
DCS1800 1805 ～ 1880MHz 1710 ～ 1785MHz
PCS1900 1930 ～ 1990MHz 1850 ～ 1910MHz
The mechanical architecture of SIM card holder and the definition of SIM card are shown below:
Pin Signal Description
C1
SIM_VDD SIM Card Power supply, it can identify automatically the SIM
Card power mode，one is 3.0V±10%, another is 1.8V±10%.
Current is about 10mA.
C2
SIM_RST SIM Card Reset.
C3
SIM_CLK SIM Card Clock.
C5
GND Connect to GND.
C6
VPP Not connect.
C7
SIM_DATA SIM Card data I/O.
3.2.3 Software Specification
Feature Implementation
Frequency Bands SIM340E Quad-band: GSM 850, EGSM 900, DCS 1800, PCS 1900.
The SIM340E can search the 4 frequency bands automatically. The
frequency bands also can be set by AT command.
Compliant to GSM Phase 2/2+
GSM class Small MS
GPRS connectivity
GPRS multi-slot class 10 （default）
GPRS mobile station class B