Bosch nbn-932 User Manual

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Installation | en

Bosch Security Systems

Installation Manual

AM18-Q0614 | v1.0 | 2012.03

Alarm and relay connector pins

–

Max. wire diameter AWG 22-28 for both stranded and 

solid; cut back 5 mm (0.2 in) of insulation.

–

Alarm output relay switching capability: Max voltage 30VAC 

or +40 VDC. Max 0.5 A continuous, 10 VA.

–

Alarm in: TTL logic, +5V nominal, +40 VDC max, DC coupled 

with 22 kOhm pull-up to +3.3 V.

–

Alarm in: configurable as active low or active high.

–

Max. 42 V allowed between camera ground and each of the 

relay pins.

Use the alarm input to connect external alarm devices such as 

door contacts or sensors. A zero potential make-contact or 

switch can be used as the actuator (use a bounce-free contact 

system).

Use the alarm relay output for switching external devices such 

as lamps or sirens. 

1

Alarm in 1

2

Alarm in 2

3

Relay out contact 1

4

Ground

5

Ground

6

Relay out contact 2

Alarm

4

5

6

1

2

3

5 mm 

(0.2 in)