Intermec proprietary data collection network consisting of a 9161 port concentrator or a 9154 controller, data collection devices, printers, and input devices.
an array of buses and transmission gates implementing paths from any input port to any output port
A network in which all input ports are directly connected to all output ports without interference from messages from other ports. In a one-stage crossbar this has the effect that for instance all memory modules in a computer system are directly coupled to all CPUs. This is often the case in multi-CPU vector systems. In multistage crossbar networks the output ports of one crossbar module are coupled with the input ports of other crossbar modules. In this way one is able to build networks that grow with logarithmic complexity, thus reducing the cost of a large network.