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STAND ALONE DOOR LOCK
DK-2890
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. The 1N4004 is not required
if the electric lock is AC operated.
To avoid Electro-Static-Discharge from interfering with the operation of the keypad, always ground
the (-) terminal of the keypad to earth.
BASIC WIRINGS OF A STAND ALONE DOOR LOCK
12V DC
AD-1312
OR
POWER
AP-960
SUPPLY
APPLICATION EXAMPLES
THE WIRE HARNESS
ELECTRIC LOCK
1N4004
ELECTRIC LOCK
OUTPUT RELAY
N.O. Output for
Fail-secure Lock
N.O. N.C.
N.C. Output for
Fail-safe Lock
OR
EGRESS
N.O.
BUTTON
CATHODE
MORE EGRESS
BUTTONS CAN
N.O.
BE CONNECTED
IN PARALLEL
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