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