User's Manual
Table Of Contents
- Introduction
- General Characteristics
- Feature Details
- Feature Descriptions
- Applications
- Mechanical Design Overview
- Mechanical Dimensions
- Climatic and Mechanical Environment Testing Compliance
- Introduction
- 50-Pin Connector Interfaces
- Flashing LED
- SIM Interface
- RF Interface
- DTE/DCE Interface Rates
- Serial Test/Demo Board Components
- Serial Test/Demo Board Block Diagram
- General Guidelines for the Use of the ModemModule
- Reference Documents
- Related Manuals
- Additional Information
- Safety Precautions
- Regulatory Standards Compliance
- Where to Find SMD Connectors
- GSM Antenna
- SIM Card Holder
- LIST OF TABLES
Chapter 3 – Electrical Characteristics
Wireless ModemModule MTMMC-G-F1 and MTMMC-G-F2 Developer’s Guide 14
50-Pin Connector Interfaces
50-Pin Connector Description
Table 3-1. 50-pin Connector Description
Pin # Name I/O I/O Type Description Comment
1 GND GROUND High current
2 GND GROUND High current
3 +5V Supply High current
4 +5V Supply High current
5 CT109/DCD O CMOS/2X Data Carrier Detect
6 GND GROUND High current
7 GPI04 I/O CMOS/2X General Purpose I/O
8 SPK2N O Analog Speaker 2 negative output
9 CT125/RI O CMOS/2X Ring Indicator
10 SPK2P O Analog Speaker 2 positive output
11 Flashing LED I/O CMOS/2X Working mode indication
LED
Driven by
module
12 SPK1P O Analog Speaker 1 positive output
13 CT106/CTS O 1X Clear to Send
14 SPK1N O Analog Speaker 1 negative output
15 ON/~OFF I Power ON/OFF control ON = Vcc
16 MIC2P I Analog Microphone 2 positive
input
17 AUXV0 I Analog Auxiliary ADC input
18 MIC2N I Analog Microphone 2 negative
input
19 ~RST I Reset active low Open Collector
20 MIC1P I Analog Microphone 1 positive
input
21 GND I Ground
22 MIC1N I Analog Microphone 1 negative
input
23 BOOT I BOOT Open Collector
24 GND GROUND High Current
25 CT103/TX I Transmit Data Pull up with
100K-ohm
when not used