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

AT-29xx Series Gigabit Ethernet Adapters Installation Guide
23
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