Emc And Esd Features - Huawei ME909 Series Hardware Manual

HUAWEI ME909 Series Mini PCIe Module
Hardware Guide
Item
Sine vibration
Shock test
Clash test
Drop test

5.8 EMC and ESD Features

EMC tests have to be performed on the application as soon as possible to detect any
potential problems.
Special attention should be paid to the following:
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Issue 0.1 (2013-06-09)
Test Condition
Frequency range: 5 Hz to 200 Hz
Acceleration: 10 m/s
Frequency scan rate: 1 oct/min
Test period: 3 axial directions. Five
circles for each axial direction.
Half-sine wave shock
Peak acceleration: 300 m/s
Shock duration: 11 ms
Test period: 6 axial directions. One
shock for each axial direction.
Half-sine wave
Peak acceleration: 180 m/s
Pulse duration: 6 ms
Repetition time: 6 directions. 1000
times for each direction.
First case: 0.3 m in height. Drop the
ME909 module on the marble terrace
with one surface facing downwards
twice. Six surfaces should be tested.
Second case: 0.8 m in height. Drop
the ME909 module on the marble
terrace with one surface facing
downwards twice. Six surfaces
should be tested.
Possible harmful emissions radiated by the application to the RF receiver in the
receiver band.
ESD protection is mandatory on all signals which are externally accessible
Typically, ESD protection is mandatory for the following:
UIM
−
− USB
Length of the USIM interface lines (preferably <10 cm).
EMC protection on audio input/output (filters against 900 MHz emissions).
Ground plane: recommends a common ground plane for analog/digital/RF
grounds.
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Electrical and Reliability Features
Standard
IEC60068
2
IEC60068
2
IEC60068
2
IEC60068
43