Specifications

Section 1: Introduction
1-7
1.3.3 SENSOR TYPES
The DOOR command is used to assign a sensor type to devices when building modes are to be
used. Each sensor is defined as normal, open, closed or as a station sensor. If building modes
are not used, all sensors act as a normal sensors.
NORMAL S ENSOR
A normal sensor grants access during all building modes to card holders who present a card key
during a valid time interval on a day specified for their access code.
OPEN SENSOR
An open sensor grants access only during the building open mode. Access is denied to all,
including privileged card holders, during the limited and closed modes.
CLOSED SENSOR
A closed sensor grants access during the open mode if a valid card is presented. In limited and
closed modes, access is granted to privileged card holders only.
STAT I ON SENSOR
A station sensor operates in the same manner as a closed sensor. In addition, the station sensor
may be used to change building modes.
1.3.4 PRIVILEGED VERSUS NON-PRIVILEGED
CARD HOLDERS
The Alto 818 allows card holders to be defined as privileged or non-privileged. Privileged card
holders have extended access and the ability to change building modes. Privileged and non-
privileged cards are granted access under identical circumstances when presented to a normal or
limited sensor. Table 1-3 provides a matrix for privileged versus non-privileged cards, building
modes and sensor types.