Patent ID: 7835385

Claim:
An arrangement in a base station in a cellular mobile telephony system, comprising a first plurality of Printed Circuit Boards (PCB:s) and a second plurality of switches, with each of the PCB:s in said first plurality being connected to each of the switches in said second plurality, the arrangement being characterized in that each of the switches is equipped with means for communicating with and polling each of the PCB:s at predetermined intervals, said polling being with regard to the status of the PCB, the switches additionally being equipped with means for distributing status information to the individual PCB:s as an outcome of said polling, the arrangement additionally being characterized in that the PCB:s are equipped with means for communicating with each other via one, several, or all of the switches, and that said communicating means in the PCB:s are arranged to choose routes of communication based on said status information received from the switches.