I have an old a two story old building. According to the owner it has a separate meter for each floor. The meters are recessed in the exterior of the building as shown in the pic 1 (no idea how they are connected and measuring electric consumption). There is a 400AMP main disconnect switch inside building behind the meters wall that has a single set of feeders go into the breaker and two sets come out of the breaker where each set goes into first floor interior panel (MLO) and second floor interior panel(MLO) (I presume, since i turned off the breaker and both first and second floor lost power). Is it correct to presume that since the meters and main disconnect are on the same wall just opposite sides of it, that the meters tapping the secondary side of breakers (the 2 sets) to measure electric consumption for each floor tenant before making their way to the floor interior panels in the building? Any help on this scenario would be appreciated, i have never come across this case before. Thank you.