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 21
Power OFF Procedure
In order to power OFF the ModemModule, switch it OFF both via software (AT+CPOF; see AT Command
Manual for more details) and via hardware line. See the diagrams below.
ON/~OFF
AT +C P OF
Serial Link
to ModemModule
OK res pon se
Serial Link
from
Modem Module
About
500 ms
Mo dem Mod ul e
Stat u s
___
ON
OFF___
Figure 3-4: Power-Off Procedure 1
ON /~O FF
AT+ CP OF
Seria l Li nk
to ModemModule
OK response
Seria l Li nk
from
ModemModule
___
ON
OF F__ _
About
500 ms
ModemModule
Stat us
About
500 ms
Figure 3-5: Power-Off Procedure 2