Specifications

M80 Hardware Design
M80_HD_V1.0 - 76 -
5.5. Electro-static discharge
Although the GSM engine is generally protected against Electrostatic Discharge (ESD), ESD
protection precautions should still be emphasized. Proper ESD handling and packaging procedures
must be applied throughout the processing, handling and operation of any applications using the
module.
The measured ESD values of module are shown as the following table:
Table 31: The ESD endurance (Temperature:25℃,Humidity:45 %)
Tested point
Contact
discharge
Air discharge
VBAT,GND
±5KV
±10KV
RF_ANT
±5KV
±10KV
PWRKEY
EMERG_OFF, STATUS
±4KV
±8KV
SIM1_VDD, SIM1_DATA
SIM1_CLK, SIM1_RST
±4KV
±8KV
TXD, RXD
RTS, CTS, DTR
±4KV
±8KV
Others
±0.5KV
±1KV
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