Bosch Appliances 3.5 manual 6.7.9Control inputs, Control outputs, Headphones

Praesideo 3.5 Installation and User Instructions 3 Control Equipment

en 118

6.7.9Control inputs

Connector (rear side):

Removable screw connector

Total cable resistance:

<1 kohm (with line supervision)

<5 kohm (without line supervision) Resistance detection (supervision enabled): Cable short circuit

<2.5 kohm

Contact closed

7.5 kohm to12 kohm Contact open

17.5kohm to 22 kohm Cable broken

> 27 kohm

Resistance detection (supervision disabled): Contact closed

<12 kohm Contact open > 17.5 kohm

Maximum open voltage:

24 V(DC)

Internal pull-up current:

0.5 mA

External contacts:

Voltage-free closing or breaking contacts (relay contacts, mechanical switches, mercury contacts etc.)

6.7.10 Control outputs

Connector (rear side): Removable screw connector Maximum cable length:

1 km Contact type:

Relay contact, single pole, change-over contact (SPDT)

Maximum switching power:

Refer to the graph.

Off state (unpowered):

C-NC is closed, C-NO is open

	2.0
	1.0
(A)	0.5
	0.4
Current	0.3
	0.2
Contact
	10	20	30	40	50	100	200
		Contact Voltage (V)

figure 6.11: Maximum switching power

6.7.11 Headphones

Connector (front side):

3.5mm stereo jack socket for headphones Maximum output voltage:

6 dBV with volume control

Rated load impedance: 8 to 600 ohm Signal/Noise ratio:

>80 dB (at maximum output level) Distortion:

< 0.5%

Bosch Security Systems 2011-02