Huawei OptiX OSN 3500 Routine Maintenance page 17

Precautions of Maintenance Operations
Precautions for Electrical Safety

Anti-static precautions:wear the grounded ESD wrist strap
1.
Precautions for board electrical
2.
grounded ESD wrist strap
Precautions for power supply maintenance
3.
Never install or remove the equipment with the power on
①
Never connect or disconnect the equipment power cable with
②
power on.
Before connecting the cables, be sure that the cables and cable
③
labels are well positioned.
safety:in the ESD bag and the
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