Oracle Netra SPARC S7-2, Руководство по обслуживанию, Страница: 45 / 258

Safety Information
Caution -
Hazardous voltages are present. To reduce the risk of electric shock and danger to
personal health, follow the instructions.
Caution -
The system supplies power to the cables even when the server is powered off.
To avoid personal injury or damage to the server, you must disconnect power cords before
servicing the cables.
ESD Measures
ESD-sensitive devices, such as PCI cards, hard drives, and DIMMs require special handling.
Caution -
Circuit boards and hard drives contain electronic components that are extremely
sensitive to static electricity. Ordinary amounts of static electricity from clothing or the work
environment can destroy the components located on these boards. Do not touch the components
along their connector edges.
Caution -
You must disconnect all power supplies before servicing any of the components that
are inside the chassis.
Caution -
These procedures require that you handle components that are sensitive to
electrostatic discharge. This sensitivity can cause the components to fail. To avoid damage,
ensure that you follow antistatic practices.
Antistatic Wrist Strap Use
Wear an antistatic wrist strap and use an antistatic mat when handling components such as
hard drive assemblies, circuit boards, or express modules. When servicing or removing server
components, attach an antistatic strap to your wrist and then to a metal area on the chassis.
Following this practice equalizes the electrical potentials between you and the server.
Antistatic Mat
Place ESD-sensitive components such as motherboards, memory, and other PCBs on an
antistatic mat. These items can be used as an antistatic mat:
Preparing for Service 45