BTSO-20

Function in the avionics complex

The supported function class is digital information processing. In an installed avionics chain, the unit receives information from associated input/interface equipment, performs the processing assigned by the system and passes results to the next computing, control or indication channel. Open documents do not establish a public pinout or permit the block to be treated as a universal computer.

Documented MiG-29 context

Aircraft-maintenance inventories record БЦО-20 in MiG-29 equipment holdings together with the BVC20-6 digital computer and UVV20-31 input/output unit. This confirms a MiG-29 avionics context and a relationship with the digital equipment family, but the exact mission-computer configuration and aircraft series must still be checked.

Identification and compatibility

BTsO-20, BVC20-6 and UVV20-31 perform different roles and are not interchangeable. Verify the complete data plate, drawing number, series, connector arrangement and the installed-complex documentation. Electrical characteristics, software or circuit version, input/output coding and mass should be copied only from the passport of the exact unit, not inferred from another “20” family block.

Inspection and ordering

Inspect the case, rack fittings, connectors, contacts, seals and nameplate. Functional checking requires the approved system bench, power supplies and digital interfaces. State the complete designation, aircraft and equipment complex, quantity, required condition, documentation and delivery set in the enquiry. The related BVC20-6-E2 page provides a useful system cross-reference.