Smart Machine Smart Decision
1 Introduction
This document describes features, functions and interfaces of T900 terminal in great detail.
T900 is a quad-band GSM/GPRS DTU that works on frequencies of GSM 850MHz, EGSM 900MHz, DCS
1800MHz and PCS 1900MHz, which is a ideal solution for wireless m2m applications, the terminal features
GPRS multi-slot class 10/ class 8 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4.
With the help of this document user can understand T900 interface specifications, electrical and mechanical
quickly.
Figure 1: T900 overview
Note: The T900 Terminal is fully complying with RoHS requirements of European standards.
2 Key features
T900 terminal has the following features:
1. Standard AT commands set
2. SIMCom proprietary AT commands set
3. Watch-dog function
4. Short circuit protection
5. Voice call
6. GPIOs
7. ADC function
T900_User Guide_V1.02 7 2013-05-22
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