Allied Telesis AT-2972T/2 - Manual (Page 23)

AT-29xx Series Gigabit Ethernet Network Adapters Installation Guide
23
Warning
The adapter is being installed in a system that operates with
voltages that can be lethal. Before you remove the cover of your
system, you must observe the following precautions to protect
yourself and to prevent damage to the system components.
- Remove any metallic objects or jewelry from your hands and wrists.
- Use only insulated or nonconducting tools.
- Verify that the system is powered OFF and unplugged before
accessing internal components.
- Installation or removal of adapters must be performed in a static-
free environment. The use of a properly grounded wrist strap or
other personal antistatic devices and an antistatic mat is strongly
recommended. E39