Basic Rf Performance; Certification And Safety - M-Labs PM-H User Manual

1-Wire Bus Interface
The 1-Wire bus interface can be connected to sensors that support the 1-wire serial protocol
such as Temperature sensors or driver identification.
3.3V Power Out
3.3V Power output is available to power peripheral sensors such a cargo sensor. The power is
turned on only when the peripheral sensor is being read to save power.
Input Voltage and Battery Voltage Monitor
The Input Voltage monitorsand battery voltage monitor are internal analog inputs scaled such
that the DC value of the voltage input pin to the PM-H system and internal battery voltage is
measured. This value is scaled to span the most significant 8 bits of the A/D and consequently
covers a scale from 0 to 32V for Input Voltage and 0 to 9V for internal battery voltage
Timers
Timers resident on the GSM baseband chip generate periodic interrupts for power down
wakeup, watchdog support, report generation and other timer related functions. Report timers
are supported by related AT command and cause generation of periodic reports.
Watchdog
MT6276 chipset provide internal software Watchdog, and a physically dedicate Watchdog
circuit requirement is optional.
Motion Detect
Configurable through AT commands the unit can go to a low power mode when the main
power is removed until motion is detected. Upon wakening, a report can then be generated,
and the GPS enabled to detect drive events.

2.2 Basic RF Performance

Items
TRP free space
TIS free space
Antenna loss
Antenna Loss

2.3 Certification and Safety

Items
Drop Design
Temperature Range
Humidity:
© 2017 M-Labs Technologies6/ 14
Remark
Requirements
>= 20 dBm TRP free space
<= -104dBm TIS free space
<= -3dB TRP-TX Power Conducted
RX receive sensitivity conducted
<= -3dB
– TIS
Requirement
1.2meter 6 direction standard drop test
-20 to 65C Operation
-40 to +85° C Storage
20% to 90% Operation
10% to 95% Storage