Token ring expander and/or hub

Details Token ring expander and/or hub Token ring expander and/or hub

1988-04-05

1990-02-27

Orsino, Joseph A.

Multiplex communications

Wide area network

Packet switching

34082505, H04J 316

Patent

active

049052306

ABSTRACT:
In a communications network, a portable token ring hub which serves as a computer communications network for a plurality of computers and answers to the protocol requirements of the computer adapter cards configured to a token ring topology and which also serves as an expander with respect to an installed token ring LAN. The hub comprises a plurality of input/output ports including respective sockets into each of which an adapter card of a respective computer plugs, a trunk insertion unit having an outlet port to which a wander lead and a trunk coupling device plug are connected, and an internal token ring which is normally a closed ring but into which each of the said input/output ports and the outlet port are inserted by means of relay contacts in accordance with the requirements of the token ring protocol.

REFERENCES:
patent: 4587651 (1986-05-01), Nelson et al.
patent: 4751697 (1988-06-01), Hunter et al.
patent: 4757497 (1988-07-01), Beierle et al.

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