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L850-GL Hardware User Manual Page 5 of 54
3.4.2
USB Interface ............................................................................................................. 33
3.4.2.1
USB Interface Definition ...................................................................................... 33
3.4.2.2
USB2.0 Interface Application ............................................................................... 33
3.4.2.3
USB3.0 Interface Application ............................................................................... 34
3.5
USIM Interface ................................................................................................................... 35
3.5.1
USIM Pins ................................................................................................................... 35
3.5.2
USIM Interface Circuit ................................................................................................. 35
3.5.2.1
N.C. SIM Card Slot .............................................................................................. 35
3.5.2.2
N.O. SIM Card Slot .............................................................................................. 36
3.5.3
USIM Hot-Plugging ..................................................................................................... 37
3.5.4
USIM Design ............................................................................................................... 37
3.6
Status Indicator .................................................................................................................. 38
3.6.1
LED#1 Signal .............................................................................................................. 38
3.7
Interrupt Control ................................................................................................................. 39
3.7.1
W_DISABLE1# ........................................................................................................... 39
3.7.2
BODYSAR .................................................................................................................. 39
3.8
Clock Interface ................................................................................................................... 40
3.9
ANT Tunable Interface ....................................................................................................... 40
3.10
Configuration Interface ....................................................................................................... 40
3.11
Other Interfaces ................................................................................................................. 41
4
Radio Frequency .............................................................................................................................. 42
4.1
RF Interface ....................................................................................................................... 42
4.1.1
RF Interface Functionality ........................................................................................... 42
4.1.2
RF Connector Characteristic ....................................................................................... 42
4.1.3
RF Connector Dimension ........................................................................................... 42
4.2
Operating Band .................................................................................................................. 44
4.3
Transmitting Power ............................................................................................................ 45
4.4
Receiver Sensitivity ............................................................................................................ 46
4.5
GNSS ................................................................................................................................. 47
4.6
Antenna Design ................................................................................................................. 48
5
Structure Specification ...................................................................................................................... 50
5.1
Product Appearance .......................................................................................................... 50
5.2
Dimension of Structure ....................................................................................................... 50
5.3
M.2 Interface Model ........................................................................................................... 51