M-Labs Technologies LLC LN01A 用户手册
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Power and Battery
Thebatterymonitor isinternalanaloginputscaledsuchthattheDCvalueofthepowerinput
pintotheLN-Lsystemis
pintotheLN-Lsystemis
measured.Thisvalueisscaledtospanthemostsignificant8
bitsoftheA/Dandconsequentlycoversascalefrom0 to28Volts.
Timers
Timersresidentonthebasebandchipgenerateperiodicinterrupts forpowerdownwakeup,
watchdogsupport,periodic reportgeneration andothertimerrelatedfunctions.
watchdogsupport,periodic reportgeneration andothertimerrelatedfunctions.
Watchdog
Quectel EC21-AchipsetprovidesinternalsoftwareWatchdog. Also the LN-
LincludesanMCUthatactsasafailsafeexternalwatchdog.TheMCUpowercycles thesystem,if
noactivityisdetectedfor1 hour.
LincludesanMCUthatactsasafailsafeexternalwatchdog.TheMCUpowercycles thesystem,if
noactivityisdetectedfor1 hour.
Accelerometer
The accelerometer can be used for motion detection and driver behavior monitoring.
2.2 Basic RF Performance
Items
Requirements
Remark
TRPfree space
LTE B2: channel 650: 20.7dBm
channel 900: 20.38dBm
channel 1150: 20.76dBm
LTE B4: channel 200: 20.7dBm
channel 2175: 20.53dBm
channel 2350: 20.53dBm
LTE B12: channel 5060: 20.3dBm
channel 5095: 20.1dBm
channel 5130: 20.3dBm
TRPfree space
TIS free space
Main: LTE B2 : -94.47dBm
LTE B4: -94.4dBm
LTE B12: -94.8dBm
DIV: DNP
TIS free space