The GTW-LC provides selectable dry contacts (N/O or N/C) with a selectable relay operating time from 1 to 600 seconds. The elevator is controllable from the apartment station while communicating with the entrance panel. When the door release button is pressed, the electric strike is activated and simultaneously the programmed relay of the GTW-LC is triggered to output to the elevator control or access control system.* GT-BCX and GT-NS or GT-DM are required to use the GHW-LC .