H3C WX5004 Installation Manual page 53


Wear ESD-preventive gloves or an ESD-preventive wrist strap and uniform when
handling the circuit board.

Hold the interface module only by its edge when installing, observing or removing it.
Do not touch the components on it.

Place the removed interface module on an ESD-preventive workbench with the
component-side facing upward or place it in an antistatic bag.
Wearing ESD-preventive wrist strap
The ESD-preventive wrist strap is user-supplied.
To use an ESD-preventive wrist strap (see Figure 25
Put on the ESD-preventive wrist strap.
1.
Fasten the ESD-preventive wrist strap and verify that it makes good skin contact.
2.
Lock the terminal of the alligator clip to the ESD-preventive wrist strap.
3.
Attach the alligator clip to the rack where the access controller is installed.
4.
Make sure that the rack is well-grounded.
5.
Figure 25 Use ESD-preventive wrist strap
（1）
（2）
(1) ESD-preventive wrist strap
（3）
(2) Locker
53
(3) Alligator clip