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SKU # 1000122263
Bosch Plena End-Of-Line Supervision Board PLN-1EOL
PAN INDIA DELIVERY
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Product Description
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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
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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
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Pilot tone detection on 100V loudspeaker lines
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Voltage free switch 200V 1A and LED indications of pilot tone
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Daisy chainable for monitoring multiple zones on a single input contact
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Fits on built-in mounts on selected Bosch loudspeakers
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EN 54-16 certified
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Functions
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Plena end-of-line boards monitor the presence of a pilot tone on a loudspeaker line
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The board connects at the end of a loudspeaker line and detects the 20 kHz pilot tone signal
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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
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The 20 kHz tone is inaudible and at a very low level (-20dB)
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When the pilot tone signal is present,an LED lights up,and a contact on the board is closed
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When the pilot tone fails,the contact opens,and the LED goes off
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If mounted at the end of the loudspeaker line,this applies to the integrity of the whole line
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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
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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
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Several EOL boards can be daisy-chained to a single fault input
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This allows a loudspeaker line with several branches to be monitored
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Since the background music also includes a 20 kHz pilot tone signal,there is no need to interrupt background music
Product Specification
| Brand | Bosch |
| Product Type | Supervision Board |
| Product Model | PLN-1EOL |
| Electrical | |
| Input | 1 x |
| Voltage | 100 V loudspeaker line |
| Detection Threshold | 5 to 50 V @ 20 kHz |
| Output | 2 x |
| Indicator | Green LED |
| Contact | Normally closed fail safe Bipolar MOS switch 250 Vp 190 mA max |
| Detection Threshold | 5 to 50 V @ 20 kHz (contact and LED) |
| Environmental | |
| Operating Temperature | -10 ºC to +55 ºC (14 ºF to +131 ºF) |
| Storage And Transport Temperature | -40 ºC to +70 ºC (-40 ºF to +158 ºF) |
| Relative Humidity | <95% |
| Mechanical | |
| Mounting | WLS II |
| Dimensions (H x W x D) | 17 x 60 x 40 mm |
| Weight | Approx. 40 g |
| Warranty | As Per Manufacturer Terms and Condition |
Other Details
| Dimension (MM) – H x W x D | 17 x 60 x 40 |
| Unit of Measurement | 1 Piece |
| Weight | 0.040 kg |
| Generic Type | Supervision Board |
| Manufacturer Details | Bosch Limited Post Box No: 3000,Hosur Road, Adugodi, Bangalore - 560030, India, Phone :18004258665 |
| Packer Details | Bosch Limited Post Box No: 3000,Hosur Road, Adugodi, Bangalore - 560030, India, Phone :18004258665 |
| Country of Origin | India |
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