Product Info
Table Of Contents
- Contents
- Tables
- Figures
- 1 Introduction
- 2 Interface Characteristics
- 2.1 Application Interface
- 2.2 RF Antenna Interface
- 2.3 GNSS Interface
- 2.4 Sample Application
- 3 Operating Characteristics
- 3.1 Operating Modes
- 3.2 Power Up/Power Down Scenarios
- 3.3 Power Saving
- 3.4 Power Supply
- 3.5 Operating Temperatures
- 3.6 Electrostatic Discharge
- 3.7 Blocking against RF on Interface Lines
- 3.8 Reliability Characteristics
- 4 Mechanical Dimensions, Mounting and Packaging
- 5 Regulatory and Type Approval Information
- 6 Document Information
- 7 Appendix
Cinterion
®
TX62-W(-B/-C)/TX82-W Hardware Interface Description
3.2 Power Up/Power Down Scenarios
109
t TX62-W_TX62-W-x_TX82-W_HID_v01.000 2021-05-19
Confidential / Preliminary
Page 75 of 154
3.2.4 Turn off TX62/TX82
To switch the module off the following procedures may be used:
• Software controlled shutdown procedure: Software controlled by sending an AT command
over the serial application interface. See Section 3.2.4.1.
• Hardware controlled shutdown procedure: Hardware controlled by setting the FST_SHDN
line to low. See Section 2.1.11.3.
• Automatic shutdown (software controlled): See Section 3.2.5
- Takes effect if TX62/TX82 board temperature exceeds a critical limit, or if
- Undervoltage or overvoltage is detected.
3.2.4.1 Switch off TX62/TX82 Using AT Command
The best and safest approach to powering down the module is to issue the AT^SMSO com-
mand. This procedure lets the module log off from the network and allows the software to enter
into a secure state and to save data before disconnecting the power supply. The shutdown pro-
cedure will be an active process for about 2 seconds (depending on environmental conditions
such as network states) until the module switches off. It cannot be specified how long the shut-
down procedure may take at the worst.
Figure 37: Switch off behavior
A low level of the V180 signal as well as the URC "^SHUTDOWN" indicate that the switch off
procedure has completed and the module has entered the Power Down mode.
BATT+
EMERG_RST
2 seconds
Switch off procedure
ON
AT^SMSO
V180
Power Down mode