Aritech ADVISOR CD 3403 Installationshandbuch PDF herunterladen (Seite 15)

Installation manual for the CD3403 Page 15

ONNECTION OF A KEY SWITCH

To “key” zone

Key switch

Tamper

+12V

To “Arm/Diarm”

output

To “System Clear”

output

4k7

Programme outputs for negative applied (-)

Figure 11.

Connection of a key switch with LED's

ONNECTION OF A RELAY OR AN

LED

Output

+12 Volt

NC NO

+12 Volt

R = 820

Ω

Output

Figure 12.

Connection of a relay or an LED on the output

The resistor R is necessary to adjust the current. For most LED’s a current of approximately 15 mA is

sufficient. The resistance calculation is as follows:

−

13.8V

15 mA

13.8V 2V

15mA

led

787

Ω

When rounded off this is 820 Ohms.

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Aritech ADVISOR CD 3403 Installationshandbuch Seite 15