A magnetic resonance system has a number of components including a basic
magnetic field generation unit, gradient coils as well as a
radio-frequency coil arrangement. The components are respectively
controllable according to a control sequence via at least one digital
module and at least one analog module. The analog modules are arranged
external to a control computer that controls the digital modules. The
digital modules are likewise arranged external to the control computer
and are associated with the analog module or modules controlled via the
control computer. The digital modules are networked via the following
networks for communication of the digital modules among one another
and/or with the control computer: a synchronous first network to
synchronize the digital modules, an isochronous or semi-isochronous
second network, a third network, wherein the digital modules are
connected with the control computer via serial peripheral component
interfaces and a signal transmission between the peripheral component
interface of the respective digital module and the associated peripheral
component interface of the control computer thereby occurs on optical
paths.