VG4 Modular Camera Series Cable and Wire Standards | en 97
Bosch Security Systems, Inc. Installation Manual F.01U.216.010 | 8.0 | 2011.02
5.6 Audio Cables
The VG4 AutoDome with Ethernet module is capable of receiving line input audio signals and
transmitting it over a network. The audio signal is transmitted one-way and in sync with the
video signals.
Audio Line Input Specifications
Wire Specifications
Audio Connections
1. Remove the 100 ohm termination resistor from the Biphase terminals.
2. Connect the audio line level source to the Biphase C+ input terminal.
3. Connect the audio signal ground to the Biphase C- input terminal.
The following figure illustrates the connections for audio over an IP network.
Figure 5.10 Connections for audio over an Ethernet network
Max. Input Voltage 5.5 Vpp
Impedance 9K ohm
Sample Rate 8 K Hz, 16 Bit, mono
Shield Bare copper braid: 95% coverage
Internal gain level adjustment is available
Wire Type
Coax
3
(recommended)
Distance 10 m (33 ft)
Gage 22 AWG to Biphase connector (P105/P106)
Shield Bare copper braid: 95% coverage
Center conductor Stranded bare copper
NOTICE! Separate the audio cables from the AC power lines to avoid noise.
1 C- (Biphase) 7 AutoDome Data In/Out
2 C+ (Biphase) 8 P105/P106 Connector
3Earth Ground 9 Audio Out
4RxD
5 TxD
6Signal Ground
NOTICE! See the AutoDome Modular Camera System User Manual for configuring and using
audio over an IP Ethernet network.
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