Enfora GSM2218 ユーザーズマニュアル

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GSM2218PB001MAN - GSM/GPRS MT-GL User Manual 
Page 8 
Copyright 2005, Enfora L.P 
2.2.1  12 pin Connector 
 
The user can purchase the optional 12-pin external I/O connector for the Enfora MT-GL that can be 
used to interface with other devices. Enfora can provide an optional cable and connector (Part 
#ADT2218).  The user also has the option of building his/her own cable.  Table 1 describes the pin 
functionality for this 12 pin I/O connector. Pins that are not planned for usage can be left open without 
anything connected to them.  
 
 
 
Pin Number 
Functionality 
Pin – 1 
Serial Data Out 
Pin – 2 
Serial Data In 
Pin – 3 
Audio – Ear Speaker Out (-) 
Pin – 4 
Audio – Ear Speaker Out (+) 
Pin – 5 
Audio – Mic Input (+) 
Pin – 6 
Audio – Mic Input (-) 
Pin – 7 
User Controlled Output 
Pin – 8 
User Controlled I/O 
Pin – 9 
User Controlled I/O 
Pin – 10 
Switched Power (Ignition) 
Pin – 11 
Unswitched Power (Battery) 
Pin – 12 
Ground 
 
Table 1 - 12 pin I/O Connector Interface 
 
 
 
 
 
Figure 8 - I/O Connector