Bosch End-of-line Supervision Board - 6
Description
Functions
Plena end-of-line boards monitor the presence of a pilot tone on a loudspeaker line. The board connects at the end of a loudspeaker line and detects the 20 kHz pilot tone signal. This signal is always present on the line: when back ground music (BGM) is playing, when a call is in progress, and when no signal is present. The 20 kHz tone is inaudible and at a very low level (-20dB). When the pilot tone signal is present, an LED lights up, and a contact on the board is closed. When the pilot tone fails, the contact opens, and the LED goes off. If mounted at the end of the loudspeaker line, this applies to the integrity of the whole line. Presence of the pilot tone signal does not depend on the number of loudspeakers on the line, the load on the line, or the line capacitance. The contact can be connected to a PA system, such as the Bosch Voice Alarm System, to detect and report faults on a loudspeaker line.
Several EOL boards can be daisy-chained to a single fault input. This allows a loudspeaker line with several branches to be monitored.
Since the background music also includes a 20 kHz pilot tone signal, there is no need to interrupt background music.
Specifications
UNSPSC Code
39121900
Weight
0.52lb
Height
2.5in
Width
4in
Length
6.5in
Brand
Bosch
Brand Name
Bosch
Category
Home & Office Security
Country of Origin
China
Manufacturer
The Bosch Group
Manufacturer Website Address
http://www.bosch.com
Packaged Quantity
6
Starting from
$272.02
/ EA
LIST PRICE
$404.00
33%
selection not available, try a different combination
selection not available, try a different combination
Compare
Bosch End-of-line Supervision Board - 6
