1.4 About this document
Symbols, expressions, and styles
The following symbols, expressions, and styles are used
in this document.
Item
How it is expressed
Text displayed on
Text is displayed in a special
the product's
font, usually enclosed in
display
quotation marks.
Example: "IP Config"
Buttons with
Button printing is displayed,
printing on them
usually wrapped in thick
brackets.
Example: M
Procedures
Usually written in an
abbreviated style. The verb may
be omitted.
Example: Enter the room
number ® M
(Meaning: Enter the room
number and then press the
M
Terms and illustrations
R Model number suffixes (e.g., the "BX" in
"VL-VN1900BX") are omitted unless necessary.
R Design and specifications are subject to change
without notice.
R Illustrations may vary slightly from the actual product.
Trademarks
R The software of this product is based in part on the
work of the Independent JPEG Group.
R Microsoft and Windows are either registered
trademarks or trademarks of Microsoft Corporation in
the United States and/or other countries.
R MIFARE is a registered trademark of NXP B.V. and
is used under license.
R All other trademarks identified herein are the property
of their respective owners.
N
N.
N button.)
1. Introduction
7