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Bosch LSN Annunciators and Display Modules in Bhopal

Fire Protection System (FPS), a Bosch dealer in Bhopal, supplies the Bosch BAT 100 LSN remote display panel and the ATG 420 LSNi and ATB 420 LSNi display modules, which show zone and device status away from the fire panel. FPS installs, programs and maintains them across Madhya Pradesh.

Where to use Annunciators & Displays

  • Security rooms and reception desks that need a repeat of the fire panel status
  • Building entrances where the fire brigade first arrives
  • Large sites with many detection zones to show at a glance
  • Floor or wing displays in hospitals, hotels and offices
  • Custom mimic panels driven by the ATB 420 LSNi outputs
  • Bosch LSN fire alarm systems

Bosch Annunciators & Displays models

How to choose

An annunciator, or remote display, repeats the status of zones and devices away from the main fire panel, so staff can see where an alarm is without walking to the panel. These Bosch units connect to the LSN loop (Local SecurityNetwork, Bosch's addressable loop bus) and each has two integrated isolators, so the loop keeps working if a wire breaks or shorts.

The BAT 100 LSN is the housing and display panel: a remote parallel display with 32, 64 or 96 multicolour LEDs, for example one LED for each of up to 96 detection zones. It is expanded with up to three ATG 420 LSNi kits. Each ATG 420 LSNi adds 32 LEDs that can be programmed and labelled in red, green or yellow, solid or flashing, and has a lamp test button, buzzer and tamper switch.

The ATB 420 LSNi is a different kind of module: instead of its own LEDs it has 32 outputs, each switching 5 V through a 600 ohm resistor, to drive LEDs or other low current devices, for example on a custom mimic panel. Both modules run on 15 to 33 volts DC. FPS supplies, installs and maintains these displays in Bhopal and across Madhya Pradesh; confirm the exact part numbers with FPS.

Frequently asked questions

What is the Bosch BAT 100 LSN?
It is a remote parallel display panel for Bosch LSN fire alarm systems with up to 96 LEDs, for example one per detection zone. It can be expanded with up to three ATG 420 LSNi display kits.
What is the difference between the ATG 420 LSNi and the ATB 420 LSNi?
The ATG 420 LSNi is a display module with 32 multicolour LEDs that fits inside the BAT 100 LSN housing. The ATB 420 LSNi has 32 outputs that drive external LEDs or other low current devices, for example on a mimic panel.
What happens to the display if the LSN loop wire is damaged?
The BAT 100 LSN and both 420 LSNi modules have two integrated isolators, which keep the rest of the LSN loop working if a wire is broken or shorted.
Can the LED colours be set for each zone?
Yes. On the ATG 420 LSNi each LED can be programmed and labelled in red, green or yellow, shown steady or flashing.
Does FPS supply and program Bosch annunciators in Bhopal?
Yes. FPS is a Bosch dealer and supplies, installs, programs and maintains Bosch display panels in Bhopal and across Madhya Pradesh. Prices are on request: call or WhatsApp +91 92440 89060.

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