✓
⇒
1.
2.
Italics
Bold type
face
Text in blue
[Store]
JDSU
Requirement
This requirement must be met first; e.g.
✓ The system is switched on
Instruction
Follow the instructions given (the
numbers indicate the order in which the
instructions should be followed); e.g.
⇒ Select mode.
Result
Indicates the result of following an
instruction; e.g.
The page opens.
Pages, controls, and display
elements
Screen pages, controls, and display
elements are indicated in bold type.
Cross references
Cross references are indicated in blue
type. When using the PDF version, just
click on the blue text to skip to the cross
reference.
Instrument keys
Instrument keys are indicated within
square brackets.
OBS-55
1 I
NTRODUCTION
3