American Magnetics 152, Руководство по эксплуатации

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Model 152 Smart Card Reader/Writer Operation Instructions
8182760 Revision G Copyright Axiohm 1998 All Rights Reserved
Page 1.4
LSAM Local Secure Application Module. A Secure Application Module
inserted in the LSAM Connector located inside the reader.
LSAM Connector This Connector (if installed) is found inside the reader where it is not
easily accessible to the general public. It receives the LSAM which
allows the reader to be used for security applications. One
disadvantage of having a SAM in an LSAM Connector is the
possibility of the whole reader being stolen. Such an occurrence
could (if the logical security scheme is inadequate) expose the
owner to possible fraud. If the SAM is used to contain actual cash
from transactions, the loss of the entire reader could mean loss of
the revenue currently residing in the LSAM!
mA Milliampere.
Memory Cards Also known as
Synchronous Cards or Serial Cards. These cards do
not have a microprocessor. They contain simple (relatively) circuitry
which allows the card to read, write and update data. There are a
variety of security mechanisms available on many cards.
Microprocessor Cards Also known as Asynchronous Cards. ICC Cards which have a
microprocessor and function according to ISO 7816-3 specifications
for Microprocessor Cards.
ms milliseconds
Multi-drop Refers to techniques for multiple computers/devices to be attached
to a single communications line and be able to communicate with
each other coherently.
N/A Not Applicable.
NAK Negative Acknowledge. This term is used, usually when talking
about a communications protocol, to designate how one party on a
communications line tells another party that a particular message
was not received correctly. Typically, when a sender receives a
NAK, the sender retransmits the incorrect message.
OSB Operation Status Byte. This byte is present in all responses from the
reader when using either of the TLP-224 protocols available. It
informs the host of the final status of the operation.
P1 One of the parameters used in a TPDU. Specific usage depends on
the TPDU being used.