User's Manual

APPLICATION EXAMPLES

1) STAND ALONE DOOR LOCK

NOTE:

DK-2822

ELECTRIC LOCK

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

TAMPER

N.C.

(+) (–)

DOOR LOCK

DATA

I/O

N.O

EGRESS BUTTON

(INSIDE HOUSE)

56781 2 3 4

(–)

(+)

(–)

(+)

ELECTRIC LOCK

CATHODE IN4004

* See Door Lock Selection Jumper

1. SAFE -- For Fail-Safe Electric Lock

2. SECURE -- For Fail-Secure Electric Lock