Bosch PLN-1EOL
The Bosch PLN-1EOL Plena End of Line Board is fitted at the end of a loudspeaker line in a voice alarm system to monitor the line integrity and report any faults.
The board detects the 'always present' 20 kHz pilot tone and illuminates an LED to show correct operation. When there is a fault on the line, the LED goes out maing it easy to spot which speaker line or branch has a problem.
Supplied and priced as a set of 6 pieces.
EN54-16 certified.
