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 23
Table 3-11: Reset Signal Pin Description
Signal Pin Number I/O I/O Type* Description
~RST 19 I/O Module reset
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Table 3-12: Reset Signal Electrical Characteristics
Parameter Min Max Unit
Input Impedance ( R ) 4.7 kilo-ohms
Input Impedance ( C ) 10 nanofarads
Table 3-13: Reset Signal Operating Conditions
Parameter Min Max Condition
*V
T-
1.1 V 1.2 V
*V
T+
1.7 V 1.9 V
V
OL
0.4 V I
OL
= -50 microamperes
V
OH
2.0 V I
OH
= -50 microamperes
V
T-
, V
T+
hysteresis level
Flashing LED
The flashing LED signal is used to indicate the working mode of the ModemModule.
Table 3-14 : Flashing LED Pin Description
Signal Pin Number I/O I/O Type* Description
Flashing LED 11 I/O CMOS/2X Working mode
indication LED
* See “Table 3-2: Operating Conditions” in section on the 50-pin Connector Description.
Table 3-15 : LED and ModemModule Status
LED Indication ModemModule Status
OFF Download mode or switched OFF.
Permanent Switched ON, not registered on the network.ON
Flash Switched ON, registered on the network.