Integrated Base Sounder

45681-277, 45681-290, 45681-300

ADM loop technology with Apollo/Discovery protocol

Integrated detector base with dual-isolator

Warning tone 1kHz

Slow whoop tone – NEN 2575

Emergency signal tone – DIN 33404

Sound level selectable in two steps– up to 91dB(A)

Integrated acoustical self test Description

The Integrated Base Sounders 45681-277, 45681-290 and 45681-300 are fi tted into a round, white plastic case with an integrated base for accommodating au- tomatic Fire Detectors or Strobes Series XP95 or Dis- covery.

The sounders are powered and actuated as modules via the ADM loop with Apollo/Discovery protocol. They can be used in combination with a detector or strobe, or as stand-alone device. For the latter case an optional white or red plastic lid is available. Furthermore, the sounders are equipped with an integrated dual-isolator module.

Two different tone types, depending on the sounder model, are available, and they can be selected during

parameterisation of the Fire Detection Control Panel Se- ries BC216. If several sounders are actuated in parallel, they are synchronized by Fire Detection Control Panels Series BC216 to generate a uniform warning tone.

In case of activation, the sounder is tested acoustically by means of an integrated microphone.

The address of the sounder as well as the sound level are selected by means of a DIL switch.

The base sounders have been designed for indoor mounting. An optional mounting plate is available for surface mounted cabling.

Specifications

Operating voltage

17

– 28VDC

Current consumption

max. 200µA (sounder off)

 

max. 5mA (sounder on)

Sound level

55

– 75dB(A) or

 

75

– 91dB(A)

Ambient temperature

-20°C to +60°C

Dimensions ø × H

115 × 38 (mm)

Colour

white

Weight

140g

Building Safety. Building Security.

A

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LST specifications Integrated Base Sounder, 45681-277, 45681-290, Specifications, Building Safety. Building Security

45681-277, 45681-290, 45681-300 specifications

LST 45681-300, LST 45681-277, and LST 45681-290 represent an advanced class of landing ship tank (LST) vessels known for their unique capabilities in amphibious operations, strategic transport, and logistical support for marine forces. These ships are engineered to transport and deploy troops, vehicles, and equipment directly onto shore, where traditional naval platforms may have limitations.

One of the key features of the LST series is the bow ramp, which offers versatility in offloading cargo and personnel quickly. This feature allows for rapid beach landings, enabling operations to take place in diverse environments, including shallow waters and rough terrains. The flat-bottom hull design enhances stability, making these vessels capable of navigating in coastal areas and riverine systems.

Technologically, LST 45681-300, LST 45681-277, and LST 45681-290 are equipped with modern navigation and communication systems. This includes advanced radar, sonar, and satellite communication, ensuring reliable operation even in contested environments. They are also fitted with the latest maritime security systems, providing the necessary protection against potential threats.

In terms of characteristics, these vessels possess substantial payload capacities, allowing for the transport of tanks, armored personnel carriers, and various armaments. Their ability to carry large contingents of troops makes them indispensable for humanitarian missions as well as combat engagements. The onboard facilities often include quarters for crew and embarked troops, command centers, and medical stations.

Powering these LSTs are efficient diesel propulsion systems, designed for both speed and fuel efficiency, allowing for extended missions without frequent refueling. The engine configurations are optimized for maneuverability, making them effective even in tight harbor operations.

In summary, LST 45681-300, LST 45681-277, and LST 45681-290 are versatile amphibious vessels that combine innovative technology with robust operational capabilities. Their design features, superior logistics support, and usability in varied maritime scenarios make them crucial assets in both peacetime and wartime conditions, ensuring that militaries can project power and provide humanitarian assistance where needed.