User's Manual

ENFORCER Split Series Keypad with Proximity Card Reader
SECO-LARM U.S.A., Inc. 11
Common Ground
Egress button
Door bell
button
Egress button
Digital KeypadDigital Keypad
Door bell
button
Door 1
sensing
Door 2
sensing
Cross wire connection for inter-lock functions
Sample Applications (continued):
In this application, two keypads are each connected to separate door locks and egress
pushbuttons. While one door is open, the other ca
nnot be opened.
•
Use an N.C. magnetic contact or some other N.C. device to detect whether a door is opened
or closed. Do this for the two doors being protected.
Interlock system using two Split-Series Keypads:
An interlock system needs two door controllers. This application example uses two keypad
systems with simple cross wire connection on their
"Output 1 Inhibit" and "Interlock Control
O
utput" terminals. It is necessary to link up the "(–) GND" terminals of the two keypads as
common ground to achieve the inter
-lock functions.
• Use keypad to open the door from outside
• Press egress button to open the door from inside
• Connect the door magnetic sensors on the doors to monitor their positions
• While door 1 is open, door 2 cannot be opened, and vice versa