VeriFone 640m, Installation Manual

Page: 6 / 33

P
REFACE
Conventions and Acronyms
6
640
M
I
NSTALLATION
G
UIDE
Conventions and
Acronyms
This section describes the conventions and acronyms used in this guide.
Table 1 describes these conventions and provides examples of their use.
Various acronyms are used in place of full definition. Table 2 represents acronyms
and their definitions.
Table 1 Document Conventions
Convention Meaning Example
Blue Text in blue indicates terms that
are cross-references. See Guide Conventions.
Italics
Italic typeface indicates book
titles or emphasis. You
must
not use this unit
underwater.
The pencil icon is used to
highlight important information. RS-232-type devices do not work
on the 640m communication
port.
The caution symbol indicates
hardware or software failure, or
loss of data. The unit is not waterproof or
dustproof and is intended for
indoor use only.
The lightning symbol is used as a
warning when a bodily injury
might occur. Due to the risk of shock do not
use the unit near water.
NOTE
CAUTION
WARNING
Table 2 Acronym Definitions
Acronym Definitions
3DES Triple Data Encryption Algorithm
AC Alternating Current
cUL Underwriters' Laboratories of Canada
DC Direct Current
DUKPT Derived Unique Key Per Transaction Method as defined in the
VISA’s
POS Equipment Requirement: PIN processing and Data
Authentication
, International Version 1.0, August 1988
ECR Electronic Cash Register
EMV Europay, MasterCard, and Visa
ISO International Organization for Standardization
MRA Merchandise Return Authorization
MSAM Multiple Secure Access Module
LAN Local Area Network