GT863-3GG Product Description
80269ST10077a Rev.0
–
2010-09-22
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved.
Page 20 of 37
6.4.
Serial ports
6.4.1.
RS-232 Interface
The serial interface of the GT863-3GG Terminal is intended for the communication
between the GSM module and the host application. This RS-232 interface is a data
and control interface for transmitting data, AT commands and providing multiplexed
channels. EMC immunity complies with the vehicular environment requirements
according to EN 301 489-7.
The user interface of the GT863-3GG Terminal is accessible from a Data Terminal
Equipment DTE connected to the RS232 interface and it is managed by AT commands
according to the GSM 07.07 and 07.05 specification and the supported commands are
listed in the AT Commands Reference
Guide.
Connector type on the terminal is:
•
RS-232 through D9-pin female
•
Baud rate from 300 to 115.200 bit/s
•
Short circuit (to Ground) protection on all outputs.
•
Input voltage range: -12V to +12V
