WH-LTE-7S1-E Hardware Manual
Technical Support:
Jinan USR IOT Technology Limited
www.pusr.com
14
4. Electrical Characteristics
4.1. Operating/Storage Temperature
Parameter
Min
Max
Operating temperature
-35
℃
+75
℃
Expansion temperature
-40
℃
+85
℃
Storage temperature
-40
℃
+90
℃
Note:
When the module works in the operating temperature range, the related performance meets the
requirements of 3GPP standard.
When works in the expansion temperature, the module can still keep the normal working state and has the
functions of voice, SMS and data transmission. There will be no irreversible failure, the radio frequency
spectrum and network are basically unaffected. Only a few parameters, such as output power, may be outside
the range of the 3GPP standard. When the temperature returns to the normal operating temperature range,
all the indicators of the module still meet the 3GPP standard.
4.2. Power Supply
Paramete
Pin
Min.
Typ.
Max.
Input Voltage
13
、
14
5V
12V
16V
Input Voltage
16
3.4V
3.8V
4.2V
4.3. IO Voltage Range
For SIM power pin USIM_VDD:
1.8V U(S)IM: Class C, USIM_VDD=1.8V
3.0V U(S)IM: Class B, USIM_VDD=3.0V
For RST, POWER KEY and others:
1.8V I/O voltage parameters:
Symbol
Parameter
Min
Typ
Max
Unit
V
IH
High-level input voltage
1.17
1.8
1.8
V
V
IL
Low-level input voltage
-0.4
0
0.63
V
V
OH
High-level output voltage
1.35
1.8
1.8
V
V
OL
Low-level output voltage
0
0
0.45
V