Introduction
Elevator Restriction System Installation and Operation Manual
7
1.2.7
New Elevator Restriction Firmware
New elevator restriction firmware
refers to
firmware versions 2.4.x and 3.4.x
and higher.
1.3
Card Access System and New Elevator
Restriction Firmware
Figure 1 is a conceptual diagram of an example system that has three elevator
cabs. There is an elevator restriction unit (ERU) restricting each cab, for a total of
three elevator restriction units. One card reader controls all three ERUs.
Figure 1.
Elevator Restriction in a Card Access System
Access points control ERUs, and card access levels control floors. This means
that a resident has access to the same floors no matter which elevator cab she
uses.
Floors are grouped into floor groups. For example, consider a 6-floor building
where residents are allowed access to floors 1 to 5, but administrators are also
allowed access to floor 6.
•
Floor Group 1: Floors 1, 2, 3, 4, 5
•
Floor Group 2: Floors 1, 2, 3, 4, 5, 6
Access Level A (for residents) is assigned to Floor Group 1, and Access Level B
(for administrators) is assigned Floor Group 2.
When a resident swipes her card at Access Point A, the system sees that the card
has Access Level A and therefore has access to Floor Group 1. The system allows
access to Floor Group 1 only on the ERUs that are controlled by Access Point A.
Access
Point A
controls
controls
controls
ERU 1
ERU 2
ERU 3
