1 12 pin connector, 12 pin connector, Figure 8 - i/o connector – Enfora GSM2218 User Manual
Page 15: Table 1 - 12 pin i/o connector interface
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