Document: LT0554
Vigilant BOWS Installation & Operation Manual
Issue 1.20
6 September 2012
Page 4-7
The BOWS has a remote audio input compatible with the BARIX range of
audio-over-IP devices (but can be used with other devices). The remote
audio input is located on the BOWS Interface board as shown in Figure
18. A level adjustment control (VR2) is provided to adjust the output
volume.
Two connection options are available:
a) 3.5mm audio socket (J23)
b) screw terminals on J24 (Table 13)
The audio socket is a stereo socket. The BOWS will combine the left and
right channels to provide a single mono output. Note that if a mono plug
is inserted the effective audio level will be halved.
Table 13. BOWS Interface Remote Audio Screw Terminals
0V
0V
RA SIG
Remote Audio
The input will support audio levels up to 1Vrms, and will allow maximum
output volume at an input level of approximately 200mVrms.
Remote
Audio Input
Figure 17. Background Music
Input
Background Music Input
3.5mm audio socket
option.
Background Music Input
screw terminal option.
Remote Audio
input. Power &
activate signal.
Remote Audio Input
3.5mm audio socket
option.
Remote Audio
Input
Screw terminal
option.
Figure 18. Remote Audio Input
