Access control applications 
EST3 Installation and Service Manual  3.25 
The door contact is connected to the CRC via the input circuit. 
SDU programming 
In the SDU, you’ll need to define the input circuit for the door 
contact as follows: 
•  Device type: Security P Monitor 
• Delays: None 
• Application: Door Contact 
• Personality: Basic 
ACDB operation 
Two time periods are defined in the ACDB: Emergency Exit 
Sounder Time, and Bypass Time. 
Emergency Exit Sounder Time is the number of seconds (0 
through 255) the CRC Sounder sounds when an emergency exit 
door is opened without badging out. 
When set to zero, the sounder is disabled. When set to 255, the 
sounder sounds until manually reset. The sounder is reset when a 
cardholder badges in at the door. 
In all cases badging in on the affected CRC can silence the 
sounder. 
Bypass Time is the number of seconds (0 through 255) that the 
door is bypassed after a cardholder badges out.