SIM900D Hardware Design
1 Introduction
This document describes the hardware interface of the SIMCom SIM900D module that connects to the specific
application and the air interface. As SIM900D can be integrated with a wide range of applications, all functional
components of SIM900D are described in great detail.
This document can help you quickly understand SIM900D interface specifications, electrical and mechanical
details. With the help of this document and other SIM900D application notes, user guide, the SIM900D module
can be used to design and set-up mobile applications quickly.
1.1 Related Documents
Table1: Related documents
SN
Document name
Remark
[1]
SIM900_ATC
SIM900_ATC
[2]
ITU-T Draft new
recommendation
V.25ter:
Serial asynchronous automatic dialing and control
[3]
GSM 07.07:
Digital cellular telecommunications (Phase 2+); AT command set for GSM
Mobile Equipment (ME)
[4]
GSM 07.10:
Support GSM 07.10 multiplexing protocol
[5]
GSM 07.05:
Digital cellular telecommunications (Phase 2+); Use of Data Terminal
Equipment – Data Circuit terminating Equipment (DTE – DCE) interface for
Short Message Service (SMS) and Cell Broadcast Service (CBS)
[6]
GSM 11.14:
Digital cellular telecommunications system (Phase 2+); Specification of the SIM
Application Toolkit for the Subscriber Identity Module – Mobile Equipment
(SIM – ME) interface
[7]
GSM 11.11:
Digital cellular telecommunications system (Phase 2+); Specification of the
Subscriber Identity Module – Mobile Equipment (SIM – ME) interface
[8]
GSM 03.38:
Digital cellular telecommunications system (Phase 2+); Alphabets and
language-specific information
[9]
GSM 11.10
Digital cellular telecommunications system (Phase 2)
；
Mobile Station (MS)
conformance specification
；
Part 1: Conformance specification
[10]
AN_Serial Port
AN_Serial Port
SIM900D_HD_V1.02
09.04.2010
8
