Bosch DCN Next Generation Installation & User's Instructions page 83

DCN Next Generation | Installation and User Instructions | Central Devices
You can select the procedure that is used to send audio
signals through the network controller with the available
audio routing modes (refer to section 10.10.11).
table 10.8: Audio output details
Number of connections:
• 1x XLR plug for each audio output
• 1x double cinch socket for each audio output
Location:
Rear side
Cable:
Shielded cable
Maximum level:
Refer to appendix A
Nominal level(s)
Refer to appendix A
Frequency response:
-3 dB @ 30 Hz and 20 kHz
Impedance:
< 100 Ω
Signal-to-noise ratio:
> 89 dBA @ max. level
Crosstalk attenuation:
> 85 dB @ max. level
Distortion:
< 0. 1 % @ 100 Hz @ - 3 dB of the max. input
Bosch Security Systems | 2007-02 | 9922 141 70525
10.6.7 Fault contact
The network controller has 5 control outputs (see figure
10.6). Control output 1 is used for the fault contact.
Use the fault contact to send the condition of the
network controller to external devices. If the network
controller operates correctly, the OK pin is internally
connected. The network controller internally connects
the Fail pins when:
• The network controller is stopped.
• The power supply (internal or external) operates
incorrectly.
• The network controller does a reset.
Control Out
C NC NO C NC NO C NC NO C NC NO C NC NO
1 2
figure 10.6: Control outputs
The common (C) pin of the control output should
always be connected. Whether the other pin that is
connected is the normally closed (NC) or normally
open (NO) depends on which action that has to take
place when the control output is active (see table 10.9).
table 10.9: Control outputs details
Connection Abbr.
Normally NC
closed
Normally NO
open
en | 83
3 4 5
Description
By default, the NC
contact is connected
with common contact C.
When the output is
activated, the NC contact
is opened.
By default, the NO
contact is not connected
with common contact C.
When the output is
activated, the NO
contact is closed.