Token ring expander and/or hub
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 27, 1990
Grant Date -
N/A
app pub date -
Apr 5, 1988
filing date -
Apr 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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