AutoDome 700 Series IP PTZ Camera VG5 Audio Connections | en 21
Bosch Security Systems, Inc. User Manual F.01U.273.798 | 3.0 | 2012.08
3 VG5 Audio Connections
The audio version of the AutoDome 700 Series has one audio input for line signals. The audio
signals are transmitted one-way and in-sync with the video signals. As a result, a door
intercom system can be connected at the camera location.
3.1 Audio Line Input Specifications
The following Line In specifications should be complied with in all cases:
– 5.5 Vpp max. Input voltage Impedance 9 Kohm, typical
– Sampling rate 8 KHz, 16 Bit, mono
3.1.1 Wire Specifications
Long distances are more susceptible to introducing noise into the signal.
3.1.2 Connections
The Audio Input must be connected to the Biphase Input as follows:
1. Remove the 110 Ω Biphase termination resistor.
2. Connect an audio source with line level to the Biphase input of the VG5 as shown in the
chart below:
3.1.3 Activating Audio Reception
To configure audio via the Web browser, do the following:
1. Open the AutoDome 700 Series Livepage, then click the Settings tab.
2. Click the Camera Settings link from the left pane, then click Audio. The AutoDome 700
Series displays the Audio settings.
3. Select the Audio protocol to activate audio over IP.
3.1.4 Enabling Audio Transmission
To transmit audio via the IP connection, do the following:
1. Open the AutoDome 700 Series Livepage, then click the Settings tab.
2. Click Web Interface from the left pane, then click Livepage Functions. The AutoDome 700
Series displays the Livepage Function screen.
3. Click the Transmit Audio radio button to enable for audio.
NOTICE!
The line ports of the intercom should be used for transmitting audio signals on the intercom
systems.
NOTICE!
There is an internal gain level adjustment in case the signal level is too low.
Wire Type: Coax wire, AWG is dependant on the connector style selected
Maximum Distance: Depends on the signal level
Contact Description
Biphase + Audio In
Biphase - Ground
NOTICE!
The audio signal is sent in a separate data stream parallel to the video data, and so increases
the network load. The audio data is encoded according to G.711 or L16 and requires an
additional bandwidth of approximately 80 Kbit/s for each connection.