Fire Protection System (FPS), a Bosch dealer in Bhopal, supplies Bosch FLM interface modules for LSN fire alarm systems: input, output, relay, signalling device, conventional zone and extinguishing modules, the FLM-I 420-S short-circuit isolator and end-of-line modules. FPS installs, programs and maintains them across Madhya Pradesh.
A 2-wire LSN element for LSN improved systems that monitors up to two inputs, offered as a wall-mount type with cover, a built-in type and a DIN rail type.
A 2-wire LSN element with one open collector output to control external devices and one monitored input, as a built-in or DIN rail version.
A built-in 2-wire LSN element with one change-over relay that provides a potential-free output contact for low voltage loads.
The DIN rail version of the FLM-420-RLV1, a 2-wire LSN element with one change-over relay for a potential-free output contact.
An LSN interface module with two 230 V relay outputs to control external equipment such as smoke dampers or fans, in a surface-mount housing or with a DIN rail adapter.
An LSN module that monitors and activates one line of conventional sounders, strobes or horns, in a surface-mount housing or with a DIN rail adapter.
A module that connects conventional detectors to Bosch LSN fire panels through a 4-wire LSN supply with external power, in a surface-mount housing or a DIN rail type.
A 2-wire LSN element that monitors up to eight inputs and adds one change-over relay for a potential-free output contact.
A 2-wire LSN element with eight outputs to control external devices and two monitored inputs, in a surface-mount housing.
A 2-wire LSN element with eight change-over relays that provide potential-free output contacts, in a surface-mount housing.
An interface module with two inputs and one monitored output, for controlling signalling devices or fire protection equipment such as fire dampers and door holders.
An interface module with four inputs and two relay outputs for 230 VAC and 24 VDC applications such as conventional 4-wire detectors, fire dampers, door holders and smoke control dampers. Bosch's page gives no technical data table for it.
An LSN module for the supervised monitoring and activation of extinguishing systems connected to the Local SecurityNetwork.
An LSN isolator that cuts off the alarm zone with a short circuit so the rest of the network keeps working.
An end-of-line module that terminates a 2-wire LSN line for Extended Line Supervision (ELS) and reports primary line faults to the fire panel.
An end-of-line module that terminates a 4-wire LSN line for Extended Line Supervision (ELS) and reports primary line and AUX line faults to the fire panel.
A small end-of-line module that terminates a 2-wire conventional detection line for Extended Line Supervision (ELS).
An interface module connects equipment that is not a detector to the fire alarm system, so the panel can monitor an input or switch an output. Most modules here are 2-wire elements on LSN (Local SecurityNetwork), Bosch's addressable loop bus, and most have two integrated isolators that keep the loop working after a wire break or short circuit. Several come in different housings with the same electronics: -W wall-mount with cover, -E built-in, -D DIN rail and -S surface-mount housing.
For inputs, the FLM-420-I2 monitors two inputs with EOL, contact or voltage monitoring, and the FLM-420-I8R1-S monitors eight inputs and adds a relay. For outputs, the FLM-420-O1I1 has one short-circuit-proof open collector output and one input, and the FLM-420-O8I2-S has eight outputs and two inputs, each output switching up to 700 mA. For potential-free (volt-free) relay contacts, choose the FLM-420-RLV1 (one relay) or FLM-420-RLV8-S (eight relays) for low voltage, or the FLM-420-RHV with two 230 V relays for smoke dampers or fans. The FLM-430-I2M1 and FLM-430-I4R2 combine inputs and outputs with configurable fail-safe logic for fire dampers and door holders.
Special modules: the FLM-420-NAC drives one supervised line of conventional sounders, strobes or horns (NAC means Notification Appliance Circuit), the FLM-420/4-CON connects two lines of 2-wire or 4-wire conventional detectors to an LSN panel through 4-wire LSN with external power, and the FLM-420-RLE-S monitors and activates an extinguishing system. The FLM-I 420-S isolates the part of the network that has a short circuit. End-of-line (EOL) modules terminate a line for Extended Line Supervision (ELS), which watches for creeping open faults and was formerly an EN 54-13 requirement.
FPS supplies, installs, programs and maintains Bosch interface modules in Bhopal and across Madhya Pradesh. Approvals differ by model and housing, so check the list under each model and confirm the exact part number with FPS.
Try "landing valve", "Apollo call point", "9 kg ABC" or a model code.
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