Bosch CS 150 RC Bedienerhandbuch PDF herunterladen (Seite 20)

Praesideo PRS-CSM / PRS-CSRM / PRS-CSKPM en | 20

Bosch Security Systems B.V.

IUI PRS-CS(R)(KP)M | V1.0 | 2013.12

Installation and User Instructions

It is also possible to connect an externally powered

lamp or LED (see figure 2.11), or an externally powered

relay (see figure 2.12). Use pin 2 of connector 5 as GND.

The value of resistor R in figure 2.10 depends on the

voltage of the external source, the forward voltage of the

LED and the current flowing through the LED:

For example, the voltage of the external source is 24 V,

the forward voltage of the LED is 2 V and the current

flowing through the LED is 10 mA, then:

figure 2.11: Externally powered LED

figure 2.12: Externally powered relay

Max. 56V

LED

indicator -/cathode

GND

I < 100 mA

source

forward

–

---------------------------------------------

24 2–

10 10

3–

⋅

---------------------

2200 Ω()==

LED

indicator -/cathode

GND

Max. 56V

I < 100 mA

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Bosch CS 150 RC Bedienerhandbuch Seite 20