Wavecom WMOi3 Bedienungsanleitung PDF herunterladen (Seite 8)

WMOi3 Integrated modem 25/01/00

This confidential document is the property of WAVECOM and may not be copied without a written

authorization

The following table describes the electrical characteristics of the

interface.

Some signals require particular connections and are specified in bold

characters.

Pin # Name I/O I/O type Description Comment

1 GND GROUND High current

2 GND GROUND High current

3 +5V I Supply High current

4 +5V I Supply High current

5 CT109/DCD O CMOS/2X RS232-Data Carrier Detect

6 GND GROUND High current

7 GPIO2 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 GPIO1 I/O CMOS/2X General Purpose I/O

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

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

with 100K

ΩΩ

when

not used

26 GPIO0 I/O CMOS/2X General Purpose I/O See 3.2.3

27 CT107/DSR O 1X RS232 interface

Data Set Ready

28 CT104/RX O 1X RS232 interface – Receive

29 CT108-2/DTR I RS232 interface

Data Terminal Ready

Pull up to VCC

with 100K

ΩΩ

when

not used

30 CT105/RTS I RS232 interface

Request To Send

Pull up to VCC

with 100K

ΩΩ

when

not used

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

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