Bosch Appliances 700 user manual Audio Line Input Specifications, Wire Specifications, Connections

AutoDome 700 Series IP PTZ CameraVG5 Audio Connections en 21

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.
	NOTICE!
	The line ports of the intercom should be used for transmitting audio signals on the intercom
	systems.
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
	NOTICE!
	There is an internal gain level adjustment in case the signal level is too low.
3.1.1	Wire Specifications
		Long distances are more susceptible to introducing noise into the signal.
		Wire Type:		Coax wire, AWG is dependant on the connector style selected
		Maximum Distance: Depends on the signal level
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:
		Contact		Description
		Biphase +		Audio In
		Biphase -		Ground
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.
	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.
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.

Bosch Security Systems, Inc. User Manual F.01U.273.798 3.0 2012.08