User Manual

CHAPTER 5: RFID TAGS
COBALT HF RFID CONTROLLERS OPERATOR’S MANUAL
P/N: 17-1320 REV 01 (03-06) PAGE 51 OF 116
CHAPTER 5:
RFID TAGS
RFID tags, which are also referred to as transponders, smart labels, or
inlays, come in a variety of sizes, memory capacities, read ranges,
frequencies, temperature survivability ranges and physical
embodiments.
Escort Memory Systems offers many different RFID tag models. Cobalt
Controllers are capable of reading all Escort Memory Systems’ HMS
and LRP series RFID tags as well most of those produced by other
manufacturers. Our patented tags can be read through obstructions
such as water, wood, plastic and more. Our specialty high-temperature
(HT) models are capable of surviving temperatures of 415° F.
5.1 RFID STANDARDS
It is important to note that not all 13.56MHz RFID tags are compatible with Cobalt
Controllers and even tags that are said to be compliant with ISO15693 or ISO14443
standards may not actually be compatible with RFID controllers adhering to the same
standards. This is partially due to the fact that these ISO standards are so new that they
leave many features open to the discretion and interpretation of the RFID equipment
manufacturer to implement or define. When using another manufacturer’s tags, ensure
compatibility of those tags with your RFID system provider.
5.1.1 ISO 14443A/B
RFID integrated circuits (ICs) designed to meet ISO 14443A and/or ISO 14443B
standards were originally intended to be embedded in secure smart cards such as credit
cards, passports, bus passes, ski lift tickets, etc. For this reason, there are many security
authentication measures implemented within the air protocol between the RFID controller
and the tag.
ISO 14443A/B compliant tags and controllers incorporate security authentication through
the exchanging of software “keys.” The RFID controller and the tag must use the same
security keys to authenticate communication before the transfer of data will begin. The
Cobalt Controller’s operating system manages these security features, making their
existence transparent to the user. However, it is important to understand the implications
associated with ISO 14443 when using another manufacturer’s RFID tags. Because of
these security “features,” an ISO 14443 tag made by one manufacturer may not
necessarily be readable by a Cobalt Controller and, likewise, an Escort Memory Systems
ISO 14443 compliant tag might not be readable by another manufacturer’s RFID
controller. The Cobalt Controllers support Escort Memory Systems’ security keys for use
on Philips mifare ISO 14443A tags.
Escort Memory Systems was one of the first companies to adopt ISO 14443 standards
and has incorporated much of the technology into our products designed for industrial
automation applications. But because most industrial environments do not require the
same level of security that monetary or passport applications necessitate, some features
have not been implemented in the Cobalt HF product line.

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