Bosch PLN-1EOL End-of-line Supervision Board

$394.00

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SKU: PLN-1EOL Category:
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Key Features

  • Manufacturer Part Number: PLN-1EOL
  • Country of Origin: China

Overview
A Plena end-of-line board is a PCB designed to detect the 20 kHz pilot tone generated by a supervised public address or voice alarm system. It activates a voltage free switch in the presence of a 20 kHz signal (pilot tone) above 5 V, as well as an LED for easy visual confirmation of operation.

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.

General Information
Manufacturer: The Bosch Group
Manufacturer Part Number: PLN-1EOL
Manufacturer Website Address: http://www.bosch.com
Brand Name: Bosch
Product Name: End-of-line Supervision Board
Packaged Quantity: 6
Product Type: End of Line (EOL) Supervision Board
Miscellaneous
Country of Origin: China
Condition

New

UPC

800549134163

MPN

PLN-1EOL

Product Type

Brand

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