I believe Bremse is brake.
Modern DC motor controller do not use the tach any more so you could disregard that if using a different drive/controller.
The item with many pins is probably an encoder, of which often were quadrature pulse differential. In the absence of documentation you may have to do some reverse engineering on the encoder to determine the pins, look to see if the encoder has a part # or make.
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.