User's Manual

Compliance and Safety Manual
3 Safety Information
Issue (2011-06-25)
Huawei Technologies Proprietary
3-9
CAUTION

For the DC power supplied device, use 1.0 mm² or 16 AWG minimum power supply cord.

For AC power supplied device, use 1.0 mm² or 16 AWG minimum power supply cord.

Use the type H03VV-F or light PVC sheathed flexible cord based on IEC 60227.
3.2.6 Fuse
WARNING
If a fuse is to be replaced, the new fuse shall be of the same type and specifications.
3.2.7 Electrostatic Discharge
CAUTION
The static electricity generated by the human body may damage the electrostatic sensitive
components on the circuit board, such as the large-scale integrated circuit (LSI).
In the following situations, the human body will generate a static electromagnetic field:

Human body moving

Clothes friction

Friction between shoes and the ground

Holding ordinary plastic in hand
The static electromagnetic field will remain within the human body for a long time.
Before touching the device, hand-operating parts, circuit boards, or ASICs, wear a grounded
electrostatic discharge (ESD) wrist strap. It can prevent the sensitive components from
damage by the static electricity in the human body.