Card Access System And Old Elevator Restriction Firmware; Figure 2. Elevator Restriction In A Card Access System - Mircom TX3 Series Installation Manual

If the access point is installed outside the elevator cab, then the resident must call
the elevator first, then swipe a card at the access point. The timer must be long
enough for the elevator to descend from the top floor to the lobby, and for the
resident to enter the elevator cab and press a button.
See LT-995 for instructions on configuring a card access system.
1.4 Card Access System and Old Elevator Restriction
Firmware
1.4.1 Firmware Versions 3.1.x
Figure 2 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. There is a card reader associated with each cab,
for a total of three access points.
ERU 1
restricts
Cab A
controls
Access
Point A
When a resident swipes a card at Access Point A, the system checks the access
level of the card. The card's access level determines which floors the card has
access to. ERU 1 activates only those buttons in Cab A. Cabs B and C are
unaffected.
The ERU relays are active for a configurable amount of time, up to 600 seconds.
This timer starts when the access point reads the card.
Note:
See LT-995 for instructions on configuring a card access system.
Elevator Restriction System Installation and Operation Manual
Version 1.2
LT-9940 Copyright 2018
restricts
Cab B
controls
Access
Point B
Figure 2. Elevator Restriction in a Card Access System
Each access point controls a specific elevator restriction unit.
For this reason, install an access point inside each cab. Wire the
buttons of each cab identically.
ERU 2
Cab C
Access
Point C
Introduction
ERU 3
restricts
controls
9