Pin Connector; Figure 8 - I/O Connector; Table 1 - 12 Pin I/O Connector Interface - Enfora GSM2218 User Manual

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
Pin – 10
Pin – 11
Pin – 12
GSM2218PB001MAN - GSM/GPRS MT-GL User Manual
Copyright 2005, Enfora L.P
Pin – 1
Pin – 2
Pin – 3 Audio – Ear Speaker Out (-)
Pin – 4 Audio – Ear Speaker Out (+)
Pin – 5
Pin – 6
Pin – 7
Pin – 8
Pin – 9
Switched Power (Ignition)
Unswitched Power (Battery)

Table 1 - 12 pin I/O Connector Interface

Figure 8 - I/O Connector

Functionality
Serial Data Out
Serial Data In
Audio – Mic Input (+)
Audio – Mic Input (-)
User Controlled Output
User Controlled I/O
User Controlled I/O
Ground
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