參數(shù)資料
型號: Q2426D
廠商: Electronic Theatre Controls, Inc.
英文描述: SELF CONTAINED E GSM/GPRS 900/1800 OR 850/1900 BI BAND MODULE
中文描述: 自成一體的位置的GSM / GPRS或850/1900畢帶模塊900/1800
文件頁數(shù): 24/81頁
文件大?。?/td> 922K
代理商: Q2426D
WM_PRJ_Q2400_PTS_002 - 002
24th January 2003
confidential
Page :
24 / 81
This document is the sole and exclusive property of WAVECOM. Not to be distributed or divulged
without prior written agreement.
Ce document est la propriété exclusive de WAVECOM. Il ne peut être communiqué ou divulgué à
des tiers sans son autorisation préalable.
2.9.2 SIM socket connection
SIM socket pin description
Signal
Pin number
Description
VCC
1
SIMVCC
RST
2
SIMRST
CLK
3
SIMCLK
CC4
4
VCC module
GND
5
GROUND
VPP
6
Not connected
I/O
7
SIMDATA
CC8
8
SIMPRES with 100k
pull
down resistor
SIMVCC
1
SIMRST
2
SIMCLK
3
SIMDATA
7
SIMPRES
8
VCC
RST
CLK
CC4
4
GND
VPP
I / O
CC8
GND
VCC
5
GND
100
kW
C
470pf
Figure 2 : SIM socket
The capacitor placed on the Sim Vcc must not exceed 470nF.
2.9.3 SIM 3/5V management
The WISMO Quik Q24x6 Series module is designed to interface with 3V SIMs
only
2
.
Nevertheless, it is possible to manage 3V and 5V SIMs using an external level
shifter (see application notes in appendix). In this case, depending on the type
of SIM detected, the module firmware triggers the GPO0 output signal (pin
#26) in order to properly set the external SIM driver level (3V or 5V).
2
Most of the GSM operators have been providing 3V SIMs since 1998.
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