4.1
Precautions
Before beginning installaon or removal, observe the following precauons:
Danger: Never look into the end of an opcal cable. Permanent eye damage or blindness can occur if laser
radiaon is present.
Danger: Never handle exposed ber with bare hands or touch it to bare skin. Fiber fragments can enter
the skin and are dicult to detect and remove. Follow local safety precauons regarding ber.
Warning: PIUs and pluggable opcs can be damaged by ESD during installaon, removal, storage, or
shipment. Such equipment is stamped with anelectrostac marks and requires special care in handling and
storage. When handling PIUs and pluggable opcs, keep in mind that they can be damaged by ESD during
installaon, removal, or whenever they are contacted so be sure to wear a wrist strap as described in the
next Warning.
Warning: Wear an ESD wrist strap with a minimum resistance of 1 megohm that is properly secured to the
ESD grounding wrist strap connecon socket when handling PIUs and pluggable opcs to prevent possible
PIU damage. Before using the strap, check it for opens, shorts, and the minimum resistance value. If the
strap does not pass these checks, do not use it.
Equipment Installation
Precautions
102
Release 19.1.1 · Issue 1.1, May 2021
Fujitsu and Fujitsu Customer Use Only