Branch element for operation in a communication network,...

Details Branch element for operation in a communication network,... Branch element for operation in a communication network,...

2007-04-19

2010-11-23

Moe, Aung S (Department: 2474)

Multiplex communications

Fault recovery

Bypass an inoperative station

C370S242000, C714S043000, C324S534000

Reexamination Certificate

active

07839770

ABSTRACT:
A branch element is specified for use in a communication network, whereby in the interplay of two branch elements designed according to the invention, a cleared fault in a communication medium stretching between the two branch elements, in particular a line, with a power supply cable and a current return cable, can be recognized with the help of a test current, which can be supplied by supplying test equipment—preferably provided in each branch element—and which can be detected using terminating test equipment—likewise preferably provided in each branch element—and whereby each terminating test equipment is designed and/or provided to deactivate a bus termination assigned to the respective branch element when the test current is detected.

REFERENCES:
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patent: 5920266 (1999-07-01), Allgood et al.
patent: 6640276 (2003-10-01), Flaschka et al.
patent: 7355438 (2008-04-01), El Sayed
patent: 7454252 (2008-11-01), El-Sayed
patent: 7456635 (2008-11-01), Akkerman et al.
patent: 7493524 (2009-02-01), Fehrmann et al.
patent: 2 407 237 (2005-04-01), None
patent: WO 2005/053221 (2005-06-01), None

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