Specifications
WM_PRJ_Q2400_PTS_001 - 003
6th November 2002
confidential ©
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26 GPO0 or 
SPI_AUX 
O 3X  General Purpose 
Output or SPI Aux 
enable 
SIM 3V / 5V 
27 COL2 I/O CMOS/1X Keyboard Column   
28  SPI_EN  O  1X  SPI enable   
29 COL3 I/O CMOS/1X Keyboard Column   
30 CT105/RTS  I  CMOS  RS232 interface 
Request To Send 
Pull up to VCC 
with 100K
Ω
when not used 
31 COL4 I/O CMOS/1X Keyboard Column   
32  CT104/RX  O  1X  RS232 interface – 
Receive 
33  AUXV0  I  Analog  Auxiliar ADC input 0  Can be tied to 
GND if not used 
34 CT108-2/DTR  I  CMOS  RS232 interface 
Data Terminal Ready 
Pull up to VCC 
with 100K
Ω
when not used 
35  GPIO5  I/O  CMOS / 2X  General Purpose I/O   
36 CT107/DSR O  1X  RS232 interface 
Data Set Ready 
37 CT106/CTS O  1X  RS232 interface 
Clear To Send 
38  BAT_TEMP  I  Analog  ADC input for battery 
temperature 
measurement 
Can be tied to 
GND if not used 
39  CT103/TX  I  CMOS  RS232 interface – 
Transmit 
Pull up to VCC 
with 100 K
Ω
when not used 
40  VCC  O  Supply  2.8V digital supply 
output 
10mA max. 
41 SPK1P O Analog  Speaker 1 positive 
output 
42 MIC1P  I  Analog  Microphone 1 
positive input 
43 SPK1N O Analog Speaker 1 negative 
output 
44 MIC1N  I  Analog  Microphone 
1negative input 
45 SPK2P O Analog  Speaker 2 positive 
output 
46 MIC2P  I  Analog  Microphone 2 
positive input 
47 SPK2N O Analog Speaker 2 negative 
output 
48 MIC2N  I  Analog  Microphone 2 
negative input 
49  BUZ  O  Analog  Buzzer output  80mA max 
50  SIMPRES  I  CMOS  SIM Card Detect  Tied to VCC 
when not used 










