Wavecom WMOi3 Manual do Utilizador descarregar pdf (Página 11)

WMOi3 Integrated modem 25/01/00

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Application example needing V.28 levels :

10 or 12 wires

10 cms max

standard RS232

3.2.3. Remote SIM interface

A SIM connector is already integrated on the integrated modem (see

3.3 SIM interface). However there is the possibility to implement a remote

SIM connector using the signals described in the table below.

PIN number Signal

47 SIMVCC

46 SIMRST

45 SIMCLK

50 GND

49 SIMDATA

48 SIMPRES

26 GPIO0

The GPIO0 pin is used to drive a bi-directional level shifter (LTC 55 or

similar) to allow the use of 3V and 5V SIMs as well.

Integrated

modem

50 PIN

CONNECTOR

RS 232

INTERFACE

MAX3238

SUBD9

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Wavecom WMOi3 Manual do Utilizador Página 11