JDS Uniphase OBS-55, Operating Manual, Page: 52 / 95

2 OBS-55 JDSU
1 I
NTRODUCTION
Symbols used in this operating
manual
The following symbols, warnings and character formats
are used in this operating manual:
CAUTION
Follow the instructions carefully to
avoid
damage
to the device.
WARNING
Follow the instructions carefully to
avoid
damage
to the device or
injury
to
the person.
DANGER
Follow the instructions carefully to
avoid
damage
to the device or
severe
injury
to the person.
High Voltage
Follow the instructions carefully to
avoid
damage
to the device or
severe
injury
to the person.
This safety instruction is given if the
danger is due to
high voltage
.
Laser
Follow the instructions carefully to
avoid
damage
to the device or
severe
injury
to the person.
This safety instruction is given if the
danger is due to
laser radiation
.
Information specifying the laser class is
also given.
! Very important instruction
Follow this instruction carefully; e.g.
!
Make sure you protect yourself and
others from exposure to laser light.