More confusion
Each squib has two filaments, for bottle one on each engine there are two independant 28v circuit breakers supplying from the hot battery bus.
For bottle two on each engine there are two independant 28v circuit breakers supplying from the 28v DC BUS 2.
To summarise, each engine has 2 bottles. Each bottle has one squib. Internally each squib has two filaments in case of failure of a filament. Bottle one both filaments supplied from Hot Bat Bus. Bottle two both filaments supplied from DC Bus 2.
Hope this makes things clearer
