AC-228 OPERATION
Keypad users request access by entering their code.
+ Users of the AC-228 have up to 40 seconds to key in their entry code.
+ Up to eight seconds are allowed between each keystroke.
+ All digits of the entry code must be entered. Example: if the code is
0042, the user must enter “0 0 4 2”.
+ If the wrong key is pressed, pressing the * key will reset the keypad. The
correct code can be re-entered.
+ After a correct code is entered, the red indicator will turn green and the
programmed relay will activate for the programmed time.
+ If the number of incorrect codes entered exceeds the keypad lockout
count, the yellow indicator will light, indicating that the keypad is locked
out. The lockout will remain for one minute.
+ After a valid code has been entered, it will be unusable until the anti-
passback time expires.
SPECIFICATIONS
Mechanical
Dimensions: 3.00" W x 5.00" H x 3.00" D
Electrical
Input Voltage: 12-24 Volts AC or DC
Operating Current: 30 mA typical, 150 mA maximum
Output Ratings
Main Relay: Form “C” 5 Amps @ 28 Volts maximum
Auxiliary Relay: Form “C” 1 Amp @ 28 Volts maximum
Type: Solid state outputs (Outputs #3 & #4)
Short-to-common 100 mA @ 24 VDC maximum
Environmental
Temperature: -22°F to 149°F (-30°C to 65°C)
Humidity: 5% to 95% non-condensing
Operation, Specifications & Warranty Information
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08279830 Rev.01/07 Page 8 of 8
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