
MorphoAccess® SIGMA Series - Administrator Guide
Recommendations
2017_2000025464-v03
This document and the information therein are the property of Morpho. They must not
be copied or communicated to a third party without the prior authorization of Morpho
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July 17
GLOSSARY
Access Controller/Controller: This term is used for centralized access controller.
Terminal communicates with controller for decisions regarding access, to the user.
Terminal: This term is used for MorphoAccess® SIGMA Family terminal, unless explicitly
specified.
Device: This term is used for an external device attached to MorphoAccess® SIGMA
Family terminal, such as USB Mass Storage device.
Admin/Administrator: A user who is authorized to manage the settings and user
information of a fingerprint reader. Administrators can enroll or delete users and change
terminal settings.
Capacitive Sensor: A device that detects the voltage differences between the sensing
surface and individual fingerprint ridges. MorphoAccess® SIGMA Family terminal
supports only Optical Sensor for better biometric performance.
Core: A term used to describe an area of the finger-scan characterized by ridgelines with
the tightest curvature and most unique content. Although the entire finger-scan has
significant data, the "core" is the most data-intensive area and thus is extremely
important to the algorithm. Normally, the core is located in the middle of the fingerprint.
Duress Mode: A mode that offers users a way of indicating a duress situation (such as
being forced to open a door). The user verifies with a specially designated finger
resulting in an inverted Wiegand output that is detectable on certain Access Control
Panels.
Finger Print Capture: The process of extracting features of a fingerprint image obtained
from a fingerprint sensor, and saving them into the internal memory of a device. The
fingerprint data is called a fingerprint template.
User Enrolment: creation of a record in a database with personal data of a unique user,
or creation of a card with personal data of a user
Firmware: The set of programs contained permanently in a hardware device (as read-
only memory) that controls the unit.
Host Mode: The normal mode of operation when the device is waiting for a card to be
presented to the terminal.
Optical Sensor: A device that detects the intensity or brightness of light. Morpho
biometric sensors are used to create graphical representations of fingerprints.
Single Door Access Control (SDAC): The capability of controlling/monitoring all functions
related to a single entry/exit point.
Software The set of programs associated with a computer system.