Application Examples; A Stand Alone Door Lock - AEI DK-2822 User Manual

APPLICATION EXAMPLES

1) STAND ALONE DOOR LOCK
DK-2822
NOTE:
Connect the 1N4004 as close as possible to the lock in parallel with the lock power terminals of the
lock to absorb the back EMF to prevent it from damaging the keypad.
To avoid Electro-Static-Discharge from interfering with the operation of the keypad, always ground
the (-) terminal of the keypad to earth.
Always connect DOOR SENSOR terminal to (-) ground if not used.
DK-2822
(+)
(–)
* See Door Lock Selection Jumper
1. SAFE -- For Fail-Safe Electric Lock
2. SECURE -- For Fail-Secure Electric Lock
ELECTRIC LOCK
1 2 3 4 5 6 7 8
TAMPER (+) (–) DATA
N.C. DOOR LOCK I/O
N.O
(+) (–)
*
ELECTRIC LOCK
CATHODE IN4004
57
EGRESS BUTTON
(INSIDE HOUSE)