PC Explain Tsw2 Hud

I can't find any detailed info on how to interpret the various displays in the HUD, especially the traction display.

 

Generated Tractive Effort in Klb
Locomotive Electrical Output in AMPs

It can be positive (green) while increasing throttle power or negative (orange) while braking.

This is a very simplified definition

 

What does BC / MR / ER / BP means?

I know it has something to do with the breaks. But dont know what it is in detail.

 

Brake Cylinder
Main Reservoir
Equalizing Reservoir
Brake Pipe

 

Brake Cylinder - loco brake pressure
Main Reservoir - total air 'to disposal'
Equalizing Reservoir - target air pressure for brake pipe
Brake Pipe - whole train brake pressure

 

Is this some where written in a manual (where i can look it uP?)

 

Probably not. What do you want to check? It is OK

UPDATE

https://train-sim-world.fandom.com/wiki/Train_Brakes:_Theory