Weigand Interface Board

The card access system, as the other systems,
utilizes the time interval data transfer control
system. Utilizing the 81311 Interface Board
allows for all readers to be home run back to
one location for termination to the MTI system.
Each board is capable of handling eight readers.
The address of the board is determined by the six
position dip switch located on each board. Connections
from the lock, the door position switch, the data
loop and the lock power are made by circuit board
mounted connectors.