WM_PRJ_M13_UGD_001 - 001
20th July 2004
© 2004
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Wavecom Confidential & Proprietary Information
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Figure 8: Sub HD 15-pin connector
Pin # Signal
(CCITT / EIA)
I/O I/O type Description Comment
1 CDCD/CT109 O STANDARD
RS232
RS232
Data Carrier Detect
2 CTXD/CT103 I STANDARD
RS232
RS232
Transmit serial data
3 BOOT I CMOS Boot Active low. Pull
down through
1kΩ for Flash
downloading
4 CMIC2P I Analog Microphone
positive line
5 CMIC2N I Analog Microphone
negative line
6 CRXD/CT104 O STANDARD
RS232
RS232
Receive serial data
7 CDSR/CT107 O STANDARD
RS232
RS232
Data Set Ready
8 CDTR/CT108-2 I STANDARD
RS232
RS232
Data Terminal Ready
9 GND - GND Ground
10 CSPK2P O Analog Speaker
positive line
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