H - Electricity – 03 – H
Patent
H - Electricity
03
H
333/23
H03H 7/48 (2006.01) G06F 13/40 (2006.01) H04L 12/40 (2006.01) H04M 9/02 (2006.01)
Patent
CA 1240743
SYSTEM FOR SELECTIVELY COUPLING A PLURALITY OF STATIONS INTO A SINGLE COMMUNICATIONS PATH Abstract of the Disclosure A system is disclosed for selectively serially coupling a plurality of stations in a commu- nications network into a single communications path. In the system of the invention, a plurality of tap boxes are serially coupled into the single communica- tions path. Each station is coupled to a desired associated one of the tap boxes by way of an associat- ed tap cable. When the tap cable is connected to a first portion of the tap box, a first impedance corre- sponding to the characteristic impedance of the single communications path is serially coupled into the single communications path to enable the station associated with the tap cable to be coupled to the single communications path by way of the first imped- ance. When the tap cable is connected to a second portion of the tap box, the first impedance is effec- tively removed from the single communications path and a test impedance is coupled to the tap cable to enable the station associated with the tap cable to test itself. In a first embodiment, the first and second portions of the tap box are respectively the tip and ring contacts of a stereo jack. In a second embodi- ment, the first and second portions of the tap box are separate audio jacks. In each embodiment, a connec- tion means, such as a monaural plug, is connected to the end of each tap cable and is used to selectively couple the tap cable to either of the first and second portions of a desired tap box.
497348
Aleshire Rex A.
Belknap William M.
Heys George Jr.
Hines Frank
Ncr Corporation
Smart & Biggar
LandOfFree
System for selectively coupling a plurality of stations into... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for selectively coupling a plurality of stations into..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for selectively coupling a plurality of stations into... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1328569