Block
SSP-FK-BI Series 2
Price on request
Block
Description
SSP-FK-BI Series 2 block in the SSP-FK system
The SSP-FK-BI Series 2 is the executive block of the SSP-FK aircraft fire warning system. It receives signals from thermal fire sensors installed in protected aircraft compartments and forms the output commands for cockpit warning and fire-protection circuits. In practical terms, this block is the central switching and processing unit of the system. It connects sensor loops from engine bays, gearbox compartments or other fire-risk zones with warning lamps, sound indication, system test circuits and, depending on aircraft configuration, fire-extinguisher release circuits.
Fire signal processing by the SSP-FK-BI Series 2
The SSP-FK-BI Series 2 continuously monitors signals from connected fire sensors, typically DTBG or DPS type sensors according to the aircraft documentation. The system reacts to fire conditions by evaluating the signal produced by sensor groups installed in the protected zones. When the required threshold is reached, the block switches the corresponding output circuits and sends a fire signal to the cockpit indication system. The block itself does not detect flame visually and does not store extinguishing agent. It processes electrical sensor signals and activates the required aircraft circuits.
SSP-FK-BI Series 2 and fire-extinguishing control
Besides warning the crew, the SSP-FK-BI Series 2 may take part in the control chain for fire-extinguishing bottle actuation. In aircraft systems, this can include electrical circuits leading to pyrotechnic cartridges on fire-extinguisher bottle valve heads. Depending on the aircraft logic, the release may be automatic or commanded manually from the pilot’s fire-protection panel. This means the block should always be checked as part of the complete fire-protection system: sensors, wiring, cockpit controls, warning lamps, circuit breakers, pyrotechnic release circuits and extinguisher bottles all matter.
Installation of the SSP-FK-BI Series 2 block
The SSP-FK-BI Series 2 is usually installed in a technical or radio compartment, away from the protected hot zones. On Mi-8 / Mi-17 family helicopters, blocks of this type may be installed in the radio compartment or another dedicated equipment area depending on the modification. The location protects the block from direct heat exposure while keeping it connected to the sensor harnesses and aircraft control circuits. Before replacement, the installer should check the mounting position, connector type, wiring diagram, controlled zones and aircraft modification.
Channels and sensor groups of SSP-FK-BI Series 2
One SSP-FK-BI Series 2 block can serve several independent fire-warning channels. The actual number of zones and connected sensors depends on the aircraft installation. In a typical system, sensors are connected in groups and routed to individual channels so that the aircraft can identify the protected area where the fire signal appeared. Some configurations use multiple SSP-FK-BI blocks on one aircraft, especially where several protected compartments are covered. For supply and repair, the channel count and sensor grouping should be checked against the aircraft wiring scheme.
Built-in test and cockpit interaction
The SSP-FK-BI Series 2 supports operational system checks from the cockpit without releasing the extinguishing agent. This is important during pre-flight and maintenance procedures, because the crew or technician must verify the warning circuits before operation. The block interacts with fire-protection switches, test selectors, warning lamps, circuit protection devices and other aircraft systems. In some aircraft, the fire warning signal may also be connected with voice warning equipment or flight data recording systems. These connections depend on the specific aircraft electrical scheme.
Supply and identification of SSP-FK-BI Series 2
When ordering the block, the full designation SSP-FK-BI Series 2 should be stated together with the decimal drawing number DM4.568.019-01 if required. It is also useful to specify whether the request is for one executive block, a complete SSP-FK system set, sensors, sockets, connectors or wiring accessories. Before installation, the block should be checked by passport, storage condition, connector integrity, category, serviceability, compatibility with DTBG / DPS sensors and compliance with the fire-warning system documentation of the aircraft.
Details
Product Type: Aircraft fire warning system executive block
Designation: SSP-FK-BI Series 2 / ССП-ФК-БИ серия 2
Decimal Drawing Number: DM4.568.019-01 / ДМ4.568.019-01
Function: Processing of fire sensor signals and output of warning / fire-protection commands
Application / Where Used: Aircraft and helicopter fire warning and fire-protection systems
Parent System: SSP-FK / SSP-FK Series 2 fire warning system
System / Installation Area: Technical compartment, radio compartment or dedicated avionics/equipment area depending on aircraft type
Typical Aircraft Application: Mi-8 / Mi-17 family helicopters and other Soviet / Russian aircraft depending on configuration
Input Sensors: DTBG / DPS thermal fire sensors, depending on aircraft documentation
Power Supply: 27 V DC
Permitted Voltage Range: 18–30 V DC
Current Consumption in Standby Mode: Not more than 0.25 A, excluding actuation currents of release circuits
Number of Controlled Channels: Up to 6 independent zones / directions, depending on configuration
Maximum Number of Connected Sensors: Up to 36 DTBG or DPS sensors
Typical Sensor Grouping: Up to 6 sensors connected in series per channel, depending on aircraft wiring scheme
Fire Detection Criteria: Temperature above +150 °C or temperature rise rate above approximately 2–3 °C/s, determined by sensor characteristics
Response Time / Inertia: Not more than 10–15 s after reaching critical temperature conditions
Operating Temperature Range: −60 to +70 °C
Relative Humidity: Up to 98% at +35 °C
Vibration Resistance: 20–80 Hz with acceleration up to 2.3 g
Approximate Weight: 3.2–3.5 kg depending on housing modification
System Kit Elements: SSP-FK-BI executive block, DTBG / DPS sensors, SSP-2I-RM sensor sockets, connectors and related installation parts depending on aircraft set
Associated Cockpit Controls: Fire-protection switch, test selector, extinguisher actuation buttons depending on aircraft configuration
Associated Indication: Fire warning lamps / “FIRE” annunciators and sound warning circuits
Associated Protection Devices: AZSGK-Sh type circuit breakers, depending on aircraft scheme
Associated Release Elements: Pyrotechnic cartridges on fire-extinguisher bottle heads for first and second discharge stages, depending on aircraft configuration
Related Aircraft Systems: Voice warning equipment and flight recorder interfaces may be connected depending on aircraft wiring
Typical Supply Category: New / first set or category 1 from storage, subject to availability and documentation
Technical Documentation: Product passport, fire warning system documentation and aircraft maintenance documentation as applicable
Payment & delivery
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.
- Description
- Details
- Payment & delivery
SSP-FK-BI Series 2 block in the SSP-FK system
The SSP-FK-BI Series 2 is the executive block of the SSP-FK aircraft fire warning system. It receives signals from thermal fire sensors installed in protected aircraft compartments and forms the output commands for cockpit warning and fire-protection circuits. In practical terms, this block is the central switching and processing unit of the system. It connects sensor loops from engine bays, gearbox compartments or other fire-risk zones with warning lamps, sound indication, system test circuits and, depending on aircraft configuration, fire-extinguisher release circuits.
Fire signal processing by the SSP-FK-BI Series 2
The SSP-FK-BI Series 2 continuously monitors signals from connected fire sensors, typically DTBG or DPS type sensors according to the aircraft documentation. The system reacts to fire conditions by evaluating the signal produced by sensor groups installed in the protected zones. When the required threshold is reached, the block switches the corresponding output circuits and sends a fire signal to the cockpit indication system. The block itself does not detect flame visually and does not store extinguishing agent. It processes electrical sensor signals and activates the required aircraft circuits.
SSP-FK-BI Series 2 and fire-extinguishing control
Besides warning the crew, the SSP-FK-BI Series 2 may take part in the control chain for fire-extinguishing bottle actuation. In aircraft systems, this can include electrical circuits leading to pyrotechnic cartridges on fire-extinguisher bottle valve heads. Depending on the aircraft logic, the release may be automatic or commanded manually from the pilot’s fire-protection panel. This means the block should always be checked as part of the complete fire-protection system: sensors, wiring, cockpit controls, warning lamps, circuit breakers, pyrotechnic release circuits and extinguisher bottles all matter.
Installation of the SSP-FK-BI Series 2 block
The SSP-FK-BI Series 2 is usually installed in a technical or radio compartment, away from the protected hot zones. On Mi-8 / Mi-17 family helicopters, blocks of this type may be installed in the radio compartment or another dedicated equipment area depending on the modification. The location protects the block from direct heat exposure while keeping it connected to the sensor harnesses and aircraft control circuits. Before replacement, the installer should check the mounting position, connector type, wiring diagram, controlled zones and aircraft modification.
Channels and sensor groups of SSP-FK-BI Series 2
One SSP-FK-BI Series 2 block can serve several independent fire-warning channels. The actual number of zones and connected sensors depends on the aircraft installation. In a typical system, sensors are connected in groups and routed to individual channels so that the aircraft can identify the protected area where the fire signal appeared. Some configurations use multiple SSP-FK-BI blocks on one aircraft, especially where several protected compartments are covered. For supply and repair, the channel count and sensor grouping should be checked against the aircraft wiring scheme.
Built-in test and cockpit interaction
The SSP-FK-BI Series 2 supports operational system checks from the cockpit without releasing the extinguishing agent. This is important during pre-flight and maintenance procedures, because the crew or technician must verify the warning circuits before operation. The block interacts with fire-protection switches, test selectors, warning lamps, circuit protection devices and other aircraft systems. In some aircraft, the fire warning signal may also be connected with voice warning equipment or flight data recording systems. These connections depend on the specific aircraft electrical scheme.
Supply and identification of SSP-FK-BI Series 2
When ordering the block, the full designation SSP-FK-BI Series 2 should be stated together with the decimal drawing number DM4.568.019-01 if required. It is also useful to specify whether the request is for one executive block, a complete SSP-FK system set, sensors, sockets, connectors or wiring accessories. Before installation, the block should be checked by passport, storage condition, connector integrity, category, serviceability, compatibility with DTBG / DPS sensors and compliance with the fire-warning system documentation of the aircraft.
Product Type: Aircraft fire warning system executive block
Designation: SSP-FK-BI Series 2 / ССП-ФК-БИ серия 2
Decimal Drawing Number: DM4.568.019-01 / ДМ4.568.019-01
Function: Processing of fire sensor signals and output of warning / fire-protection commands
Application / Where Used: Aircraft and helicopter fire warning and fire-protection systems
Parent System: SSP-FK / SSP-FK Series 2 fire warning system
System / Installation Area: Technical compartment, radio compartment or dedicated avionics/equipment area depending on aircraft type
Typical Aircraft Application: Mi-8 / Mi-17 family helicopters and other Soviet / Russian aircraft depending on configuration
Input Sensors: DTBG / DPS thermal fire sensors, depending on aircraft documentation
Power Supply: 27 V DC
Permitted Voltage Range: 18–30 V DC
Current Consumption in Standby Mode: Not more than 0.25 A, excluding actuation currents of release circuits
Number of Controlled Channels: Up to 6 independent zones / directions, depending on configuration
Maximum Number of Connected Sensors: Up to 36 DTBG or DPS sensors
Typical Sensor Grouping: Up to 6 sensors connected in series per channel, depending on aircraft wiring scheme
Fire Detection Criteria: Temperature above +150 °C or temperature rise rate above approximately 2–3 °C/s, determined by sensor characteristics
Response Time / Inertia: Not more than 10–15 s after reaching critical temperature conditions
Operating Temperature Range: −60 to +70 °C
Relative Humidity: Up to 98% at +35 °C
Vibration Resistance: 20–80 Hz with acceleration up to 2.3 g
Approximate Weight: 3.2–3.5 kg depending on housing modification
System Kit Elements: SSP-FK-BI executive block, DTBG / DPS sensors, SSP-2I-RM sensor sockets, connectors and related installation parts depending on aircraft set
Associated Cockpit Controls: Fire-protection switch, test selector, extinguisher actuation buttons depending on aircraft configuration
Associated Indication: Fire warning lamps / “FIRE” annunciators and sound warning circuits
Associated Protection Devices: AZSGK-Sh type circuit breakers, depending on aircraft scheme
Associated Release Elements: Pyrotechnic cartridges on fire-extinguisher bottle heads for first and second discharge stages, depending on aircraft configuration
Related Aircraft Systems: Voice warning equipment and flight recorder interfaces may be connected depending on aircraft wiring
Typical Supply Category: New / first set or category 1 from storage, subject to availability and documentation
Technical Documentation: Product passport, fire warning system documentation and aircraft maintenance documentation as applicable
All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.
In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.
Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.
Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.
Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.
Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.