Mate any domestic
munition to any
foreign platform.
Frontline fighters lock out home-grown armaments behind inaccessible OEM flight software. The Weapon Interface Unit sits silently on the weapon bus and presents your munition as a recognised OEM store — no source code, no OEM cooperation, no aircraft modification.
bus latency
switchover
releases
capability
A single foreign vendor holds the key to your firepower.
Locked out of your own arsenal
Every frontline platform — Rafale, Su-30MKI, Mirage 2000, Jaguar — is configured by its OEM to recognise only OEM-certified stores. Integrating a domestic munition means surrendering sensitive weapon data to a foreign manufacturer.
Source code is withheld, fees are prohibitive, and timelines stretch into years. The result is a strategic single point of failure: combat readiness gated by another government's commercial and political decisions.
It speaks the aircraft's language — as the weapon it expects.
Installed inline between the pylon umbilical and the munition, the unit emulates a known OEM store while its protocol translator converts every message to and from your weapon's native format — in hard real time.
Host Platform
SMS & Bus
Sees only an emulated OEM weapon at the expected address. No modification, no recertification.
1760
Hardware-paced bus control presents the OEM identity; a table-driven translator maps protocols, bit-widths and timing.
PROTOCOL
Domestic Munition
Smart bombs, LGBs, A2A & cruise missiles — via a field-replaceable connector module.
Built to a certifiable engineering baseline.
Every function is carried through architecture, test and CEMILAC certification evidence as a traceable whole.
Table-Driven Translation
A lookup table maps source protocol and message type to target protocol, message type and data transform. New weapons added by configuration alone.
Hard Real-Time Determinism
Dedicated silicon handles the time-critical bus function while the real-time OS preempts all non-critical work. Bounded latency, guaranteed maximum jitter.
Dual-Channel Release Interlock
A hardware consent line and a digital command word must both confirm before release is asserted. The safe-arm logic lives in hardware — not overridable by software.
Health Monitoring & Test
Continuous monitoring across the pylon, weapon and internal watchdog channels. Built-in test reports per-block status; anomalies drop the system to a safe mode.
Deterministic Logging
Every bus message, translation, fault and interlock change is timestamped to non-volatile flash with atomic writes. Survives power loss; full mission replay on the ground.
Multi-Weapon · Multi-Platform
Many weapon profiles held in flash, selectable pre-flight. Re-target across MIL-STD-1553B, GOST R 52070-2003 or DIGIBUS via platform profiles.
Two domains. One certifiable chain.
Time-critical bus work runs in dedicated silicon; orchestration, translation and logging run on the processor under a real-time OS. Safety lives in hardware, where software cannot reach it.
The hardware / software split
The 1553B bus is half-duplex and time-division multiplexed — its timing cannot be guaranteed on a general-purpose processor. The FPGA owns the bus; the processor owns everything else.
- Bus RT core
- Message scheduler
- Bus A/B manager
- Safe-arm machine
- Interlock monitor
- Translation engine
- Logging daemon
- Tablet interface
- Maintenance port
- Firmware updates
Aircraft Interface
Bus transceiver, transformer coupler, 78Ω termination, Bus A/B switchover, interlock monitor.
Power Subsystem
28 VDC / 115 VAC conversion, optoisolation, surge protection, brownout hold-up, sequencing.
Protocol Translator
Table-driven engine, profile database in flash, width / byte-order converters, validation.
Weapon Interface
Field-replaceable connector module, power conditioning, weapon-specific transceiver.
Safety & Interlock
Dual-channel release monitor, hardware safe-arm, emergency shutdown, power-fail safe-state.
Storage & Maintenance
Non-volatile log buffer, dual firmware slots, wired maintenance port, test output.
Ground to release to log retrieval.
Five defined phases from pre-flight configuration through employment. The critical phase is gated by dual-channel confirmation.
Ground Configuration
Unit mated to the hardpoint; munition attached; weapon profile selected via the maintenance port; built-in test declares mission-ready.
STANDBY
Address Enumeration
Aircraft power applied; the configured address loads, the interlock asserts, and the unit answers the first poll with the emulated OEM identity and store description.
STORE MAPPED
Initialisation & Config
Commands answered per profile; the pilot sets weapon parameters; the translator forwards them to the munition; the cockpit tablet exposes special functions.
LOGGING
Weapon Employment
On the release command, the safety block verifies both the hardware consent line and the digital command word independently. A single-channel failure cannot cause a release.
RELEASE GATED
Log Retrieval
Final state written through a hold-up capacitor; the full mission log — every message, translation, fault and interlock change — retrieved for certification and analysis.
NEXT SORTIE
From lab capture to fleet capability.
A staged path with explicit exit criteria, converging on CEMILAC type approval and long-term obsolescence-managed support.
Bus Analysis
Capture & decode the OEM weapon profile across its full lifecycle.
HW Prototype
First board on a bench bus simulator; power & bus core.
Ground Trial
Full weapon lifecycle on a live aircraft, powered, on the ground.
Captive Carry
Airborne with an inert store; EMI, brownout, vibration, thermal.
Live Fire
Authorised-range release; dual-channel interlock validated.
Certification
CEMILAC compliance demonstration; independent V&V; type approval.
Initial Capability
Field to first squadrons; maintenance training; feedback loop.
Full Capability
Fleet-wide deployment; long-term support programme active.
Emulation-based integration is battle-proven.
This approach formalises what air forces under pressure have already fielded successfully — including India's own.
UBAS on F-16
Under sanctions and locked out of the flight software, Türkiye fielded a tablet-based system to integrate indigenous weapons on its F-16 fleet at will.
HARM on Su-27
Soviet-era airframes, fundamentally incompatible with the US AGM-88, made to employ HARM via an emulated stores-management layer.
Astra Mk1 as R-77-1
The indigenous Astra Mk1 presents itself to the Su-30MKI weapon computer as an R-77-1, reusing the existing digital logic — the core principle, already flying.
R-73 on Mirage 2000
A Russian R-73 mated to a French Dassault platform with neither OEM consulted — independence from OEM leverage, demonstrated.
Data Bus
Store Interface
Aircraft Power
Environmental
EMI / EMC
Software
FPGA Hardware
Certification
Export Control
Put your weapons on your terms.
Satveer Edge Solutions builds sovereign defence systems that take the OEM out of the loop. Request a technical briefing on the Weapon Interface Unit programme.