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Installation and Operating Manual | VideoJet 8008 / VideoJet 8004
EN | 22
Installation Bosch Security Systems | 2006-07 | V1.5
Audio connections (audio versions only)
The audio versions of VideoJet 8008 and VideoJet 8004 have several audio ports
for audio line signals as well as a microphone input and a loudspeaker output.
The audio signals are transmitted two-way and in sync with the video signals. As
a result, you can connect a speaker or door intercom system at the destination
point, for example. When transmitting audio signals, a maximum of one input
and one output current is possible at the same time. However, several audio out-
puts can be connected with the same audio stream. Selection is carried out
using the software user interface.
The following specific audio ports are available:
Audio 1 to Audio 8 Socket, input/output, mono, line level
Audio Out Socket, output, stereo, line level
AI Terminal connector, input, mono, speaking level
AO Terminal connector, output, mono, speaking level
Note
If possible you should use the line ports of the intercom for transmitting au-
dio signals on the intercom systems. The following specifications should
be complied with in all cases.
Audio 1 to 8 Line In: Impedance 50 kOhm typ.,
1 V
p-p
max. input voltage
Audio 1 to 8 Line Out: Impedance 8 Ohm min.,
1 V
p-p
max. output voltage
Audio Out: 2 × 5 W @ 8 Ohm / 2.5 W @ 4 Ohm
AI (microphone): Impedance 2 kOhm typ.,
2.8 V
p-p
max. input voltage,
–20 dB in, supply 2.3 V typ.
AO (loudspeaker): Impedance 4 Ohm min.,
6 V
p-p
max. output voltage,
power output RMS 1 W