User Guide

Schlage • OEM 200 Developer guide • 25
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 Shi 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 specifications for reader to card communication.
CSN: Card Serial Number. Also known as the UID or Unique Identifier which is specified in the ISO specifications.
DESFire: A flexible, high security, ISO 14443 compliant, contactless smart card technology by NXP.
ESD: Electrostatic Discharge
Firmware: Soware in the form of ROM or EEPROM that does not lose memory when power is not maintained.
FSK: Frequency Shi 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. Without going into great detail, 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.
MIFARE® Plus: A high security, ISO 14443 compliant, contactless smart card technology by NXP.
Modulation: The changing of radio waves in a specific manner in order to represent data.
OSDP: Open Supervised Device Protocol 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.
RS485: Standards for serial multipoint communications lines. These standards represent faster, two-way communication
lines rather than the standard Wiegand one-way communication lines prevalent in the access control industry.
Smart Card: A card or credential that contains a built-in microprocessor and memory used for identification and
transactions in a number of applications (security, financial, 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.