Instructions

c) Keypad entry

This NPN transistor (open collector with a maximum current of 100 mA at 24 V/DC) can be used

to transfer a signal to other devices when a button is pressed, or when an alarm is triggered

after the door is forced open. Keypad-Alarm (K): Output 8 is switched to GND (-) for 10 seconds

each time a button is pressed. This can be used to turn on lighting and surveillance cameras or

send messages (e.g. to security staff).

• Ensurethattherethereissufcientgalvanicisolationbetweenthe(low)controlvoltageofthe

keypad and the (high) backlight voltage.

• Limit the maximum current to <100 mA.

• External components cannot be powered by the keypad’s power supply. The keypad can only

be used to switch these components on and off.

d) Emergency code output

When the emergency code is entered, output 16 (NON open collector transistor) is switched to

GND(-). The output delivers a maximum current of 100 mA at 24 V/DC. It can be used to trig-

ger an alarm/siren or automatically notify security personnel. Do not combine the connection

options shown here.

PIEZO BUZZER

(WITH LOW

POWER CONSUMP-

TION)

CABLE HARNESSCABLE HARNESS

PIEZO

BUZZER

(WITH LOW

POWER CON-

SUMPTION)

CABLE HARNESS

24-HOUR

SECURITY

SYSTEM