User's Manual
Appendix A
Schlage • MT20 Enrollment Reader User Guide • 7
Appendix A
Terms and Abbreviations
125 kHz: Radio waves operating at 125 thousand cycles per second. This technology has historically been the
standard in proximity card/reader but is beginning to be replaced by faster, more secure 13.56 MHz technology.
13.56 MHz: Radio waves operating at 13.56 million cycles per second allowing read/write and secure, encrypted
card and reader communication. Because of the faster communication (compared to 125 kHz proximity technology)
between a card and reader, this technology is better suited for biometrics and secure, authenticated transactions.
ASK: Amplitude Shift Keying or modulation – Refers to the process of altering the height of the radio waves to
signify the zeros and ones in the binary communication
– ASK is the most common form of modulation used in RFID. It is used in both ISO 14443 and ISO 15693
specications for reader to card communication.
CSN: Card Serial Number. Also known as the UID or Unique Identier which is specied in the ISO specications.
DESFire
®
: A exible, high security, ISO 14443 compliant, contactless smart card technology by NXP.
Firmware: Essentially software in the form of ROM or EEPROM that does not lose memory when power is not
maintained.
FSK: Frequency Shift Keying or modulation – the process of altering the frequency of radio waves to signify the
zeros and ones in the binary communication.
ISO 14443: International standard regulating contactless, proximity technology, typically representing a read range
distance up to 10 centimeters. The advantage products utilizing ISO 14443 have over those utilizing ISO 15693 is
that the transaction speed is faster, making security and transaction speed superior for large packets of information
such as biometric templates. ISO 14443 is actually divided into two sub-divisions of the standard, A & B. ISO
14443A has grown to be the leading standard for access control and transportation and 14443B for banking.
ISO 15693: International standard regulating contactless, vicinity technology, typically representing a distance over
10 centimeters. The advantage ISO 15693 has over ISO 14443 is greater convenience due to longer read ranges
and less power consumption.
MIFARE
®
: A proprietary contactless and dual interface smart card chip technology produced by NXP. Mifare is a
well proven RF communication technology for transmitting data between a card and a reader device and is fully
compliant with ISO 14443A.
Modulation: The changing of radio waves in a specic manner in order to represent data.
OSDP (Open Supervised Device Protocol): OSDP is a communication protocol for interfacing one or more
Peripheral Devices to a Control Panel.
Protocol: How computers talk to each other – a communication system.
Proximity: A card/credential and reader system utilizing RFID technology in which the credential and reader
utilize microprocessors and antennas to communicate without having to come in contact with one another. This
technology is usually associated with 125 kHz frequency readers, the historical standard RFID technology in
access control.
Smart Card: A card or credential that contains a built-in microprocessor and memory used for identication and
transactions in a number of applications (security, nancial, etc.). The card has read/write capability to transfer
data from a reader typically to a panel or computer.
UID: See CSN above.
Wiegand Format: The most common data format in an access control system consisting of 26 bits of information.