User guide • Read online or download PDF • Bosch FNMA-BS Base Sounder, Indoor User Manual • Bosch Safety. Get Bosch FNMA-BS Base Sounder, Indoor Manual. Get all FNMA- BS-WH | FNMA-BS-RD sv Säkerhetsinstruktioner 3 1 i! Reliez-vous à la terre à l’aide d’un bracelet anti-statique ou protégezvous par toute autre mesure. BOSCH SECURITY SYSTEMS | FNMA-BS-WH | Fire Alarm System Analog Base Sounder, Indoor, 15 to 33V DC, dB, IP43, to 70 Deg C, ABS.

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Bosch FNM-420-A-BS-RD Installation Manual Page 10

Within one stub or loop the detector parameters have to be consistent. Maximum installation height Detector type Qty Components. Within one stub class B or loop class A the detector parameters have to be boch e. Batterijen mogen niet met het huisvuil worden afgevoerd.

The fire panel detects a ground connection for each individual line. Individual call point identification with display of the call point address on the fire panel ensures the quick location of the triggered call point. Para abrir la sirena para interior, utilice la herramienta suministrada 1.

Installazione Vedere Figura 1, Pagina 4. All housings can be extended with various additional housings for all conceivable applications. Trademarks Trademark names are used throughout this document. The knockouts in the rear surface of the back box must remain intact. An LED transmits light to the measuring chamber, where it is absorbed by the labyrinth structure. The detector will continue to function as an O detector. The horn strobes snap onto the pre-installed Universal Mounting Bases with the Contact Covers removed and can be secured to the base with an optional securing screw.


When connected to the Series Modular Fire Panel, the interface module offers the enhanced functionality of LSN-improved technology.

The gas sensor delivers additional information to effectively suppress deceptive values. The detector will then still operate as a multi-sensor detector with dual-optical and thermal sensor.

Sounders of the same LSN loop and with the same tone type provide immediate synchronization. The panel has a buzzer and a reset button for the buzzer. This applies to all manual call points and fnm-420-a-bs-gd detectors as well as to the following modules and interfaces due to their inputs.

List of VdS-approved Products for Fire Detection and Alarm Systems

Depending on the service life of the gas sensor, the OC detector switches off the C sensors after five years fnm-240-a-bs-rd operation. The key starts the charging of the batteries if the battery voltage is between 18 V and 21 V. The interface modules in the series offer all the features of “improved” LSN technology: The CZM A 4 zone conventional module is allocated to 4 detection points, one per zone.

Depending on the tone type and volume set, the sound pressure varies between 65 dB A and If connecting classic and improved LSN elements boach one loop, observe the following: Activation of signaling devices in the event of an alarm 2.

The Address Cards allocate one detection point per address. It is preferable to use the loop formation owing to the greater security of loop lines compared with stub lines. Wenn keine PGVerschraubung verwendet wird, gilt: Realizzare con il trapano i fori necessari 2 sulla parte posteriore fnm-420-a-bs-dd inferiore dell’alloggiamento, quindi far scorrere il cavo nell’alloggiamento stesso.


The alarm status is displayed by the red window 4 and the flashing LED display 2. If the PG cable glands cannot be used, please proceed as follows: Parts included Detector version Alarm output Per data word fnm-420a-bs-rd two-wire signal line Indicator output Open collector connects 0 V over 1.

Products for Automatic Fire Alarm Systems

Interface variants The input interface modules are available in various designs: Alleen zo worden een correcte werking en lange levensduur gegarandeerd. Con la punta dello strumento premere sulle apposite aperture situate sull’alloggiamento. All the switches to change these settings can be set without a tool and are located behind the appliance to prevent tampering.

In this case, both AUX outputs are reset in parallel at once. Manual or time-controlled switch-off of individual sensors is required for gnm-420-a-bs-rd to extreme interference factors.

The following can be connected: Functions The Power Supply is protected against pole reversal and overvoltage. Das Dokument kann beim Hersteller angefordert werden.

By linking the sensors, the combined detectors can also be used in places where work carried out gives rise to light smoke, steam or dust.