Bosch DCN Next Generation Installation & User's Instructions page 50

DCN Next Generation | Installation and User Instructions | Central Devices
You can select the procedure that is used to send audio
signals through the central control unit with the
available audio routing modes (refer to section 8.10.11).
table 8. 1 6: 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 (audio output 1):
Refer to appendix A
Nominal level (audio output 2):
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
8.5.7 Fault contact
Use the fault contact to send the condition of the central
control unit to external devices. If the central control
unit operates correctly, the OK pins are internally
connected. The central control unit internally connects
the Fail pins when:
• The central control unit is stopped.
• The internal power supply unit operates incorrectly.
• The central control unit does a reset.
figure 8. 1 0: Fault contact
table 8. 1 7: Fault contact
Number of connections:
4-pole plug
Location:
Rear side
Signal:
Potential-free change-over relay
Voltage:
Max. 24 V(DC), 15 V(AC)
Current:
Max. 500 mA
en | 50
OK Fail