Wavecom WMOi3 User Manual

January 2001/ version 1.4
WMOi3 Integrated Modem
confidential ©
19/61
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4 Hardware Interfaces
This chapter describes the hardware interfaces:
• interfaces on the 50-pin general purpose connector
• RF interface
• SIM interface
4.1 Interfaces on the 50-pin general purpose connector
4.1.1 The 50-pin connector description
Table 2 : 50-pin connector description
Pin # Name I/O I/O type Description Comment
1 GND GROUND High current
2 GND GROUND High current
3 +5V Supply High current
4 +5V Supply High current
5 CT109/DCD O CMOS/2X RS232-Data Carrier Detect
6 GND GROUND High current
7
GPIO4 I/O CMOS/2X General Purpose I/O
8 SPK2N O Analog Speaker2 negative output
9 CT125/RI O CMOS/2X RS232-Ring Indicator
10 SPK2P O Analog Speaker 2 positive output
11 Flashing LED I/O CMOS/2X Working mode indication
Led
Driven by module
12 SPK1P O Analog Speaker 1 positive output
13 CT106/CTS O 1X RS232 interface Clear To
Send
14 SPK1N O Analog Speaker 1 negative output
15 ON/~OFF I Power ON/OFF control ON = VCC
(3)
16 MIC2P I Analog Microphone 2 positive
input
17 AUXV0 I Analog Auxiliary ADC input
18 MIC2N I Analog Microphone 2 negative
input
19 ~RST I Reset active low Open Collector
20 MIC1P I Analog Microphone 1 positive
input
21 GND I Ground
22 MIC1N I Analog Microphone 1 negative
input
23 BOOT I BOOT Open Collector
24 GND GROUND High current
25 CT103/TX I RS232 interface - Transmit Pull up to VCC
(3)
with 100KΩ when
not used

Wavecom WMOi3 Specifications

General

Brand	Wavecom
Model	WMOi3
Category	Modem
Language	English