Currently, there is only one way to connect a Macintosh II with the Apple TokenTalk NB Card to a 16MB Token Ring network.
You must use an IBM-compatible computer with 16MB and 4MB Token Ring cards installed as a bridge between the 4MB Token Ring network that the Macintosh II is on and the 16MB Token Ring network. The PC needs to run IBM's Token Ring Bridge Program and be dedicated to this bridging function. (This works because we support source routing.)