Multiplex communications – Diagnostic testing – Determination of communication parameters
Patent
1996-02-08
1997-12-30
Olms, Douglas W.
Multiplex communications
Diagnostic testing
Determination of communication parameters
370452, 370465, H04L 1242
Patent
active
057038724
ABSTRACT:
An intelligent multistation access unit is provided having a transmission speed detection circuit for determining the data transmission speed of an attached device attempting to gain access to a node of a multiple transmission rate digital data communications network. The intelligent multistation access unit is comprised of a speed detect circuit, which indicates the data transmission speed of the attached device, a switching circuit which directs the attached device to the speed detect circuit until switched to allow the attached device access to the network node, and a processor that controls the switching circuit and which permits the attached device access to the node depending on the data transmission speed indication.
REFERENCES:
patent: 4700344 (1987-10-01), Kaino et al.
patent: 5436624 (1995-07-01), Pearce et al.
Boggs Andrew Keith
Hoang Quy N.
Jacobs Joe
Mullen John Mark
Purrington Challis
Blum Russell W.
Cockburn Joscelyn G.
International Business Machines - Corporation
Olms Douglas W.
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