Table of Contents
Advertisement
Figure 1
2 Hardware Design
2.1 Basic Hardware
Items
Baseband Module
Air Interface
Frequency
Antenna
UIM requirement
GPS Antenna
Power Inputs
Interface
Voltage/Battery Monitor
Build in battery manager
Dedicate Timers
Watchdog
© 2018 M-Labs Technologies
LTE
Network
PM-L
Requirement
Based on Quectel EC21-A baseband module
Support for LTE B12, B4, B2 WCDMA B2,
B4, B5
B2(MHZ):TX(1850-1910)
B4(MHZ): TX(1710-1755)
B12(MHZ): TX(699-716)
B5 (MHZ): TX (824-849)
Internal single antenna
Support: 3FF SIM interrupt mode
No Support: Hot plug/unplug
Dedicate high performance ceramic antenna
12V DC Input（1.2A max current)
Main/Aux/Solar inputs
UART TX/RX
GPIO1 and GPIO2
1-Wire Bus Interface
3.3V Power out
Internal analog input scaled
Supported
RX(1930-1990)
RX(2110-2155)
RX(729-746)
RX (869-894)
5 / 14
批注 [GE1]: Update image with LTE
Network, PM-L device name, and
change car to trailer image.
Advertisement
Table of Contents
