Iei 212I Keypad Wiring Diagram. Web the diagram above shows how to connect two keypads to control a single door. Keypads using the 293 relay. Wiring Diagram To Maglock Iei Keypad Iei 212 Keypad Wiring Diagram from wiring04.blogspot.com When you enter your code on. Web entering your code on keypad 2 unlocks the maglock directly. […]