NEC Express5800 SIGMABLABE User Manual page 26

Precautions for Use
Anti-Static Measures
Installing or Uninstalling an Internal Optional Device
1. Notes before carrying out the work
(1) To avoid electric hazard and malfunction, be sure to turn off the Power switch of this product
and unplug the power cord from an outlet before carrying out the work. However, there is no
need to do this if the internal optional device is hot-swappable.
(2) This internal optional device consists of static-sensitive electronic components. To avoid failures
caused by static electricity when installing or uninstalling the internal optional device, wear an
anti-static wrist strap on your wrist and provide earthing before carrying out the work. And also
connect a wrist strap to earth ground when you wear a wrist strap.
(3) Handling of cables
When connecting a cable (e.g., LAN cable), static electricity may also be charged due to friction
against the floor. Connecting a charged cable with an I/O device may cause damage to the
devices. It is recommended to discharge static electricity before connecting a cable by using
neutralization apparatus and so on.
xvi