crosstalk

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Related to alien crosstalk: Near end crosstalk

crosstalk

[′krȯs‚tȯk]
(communications)
The sound heard in a receiver along with a desired program because of cross modulation or other undesired coupling to another communication channel; it is also observed between adjacent pairs in a telephone cable.
Interaction of audio and video signals in a television system, causing video modulation of the audio carrier or audio modulation of the video signal at some point.
Interaction of the chrominance and luminance signals in a color television receiver.
(engineering acoustics)

crosstalk

Undesired signals in one electrical circuit as a result of electrical coupling with another circuit.

crosstalk

(electronics)
Interference caused by two signals becoming partially superimposed on each other due to electromagnetic (inductive) or electrostatic (capacitive) coupling between the conductors carrying the signals. A common example of crosstalk is where the magnetic field from changing current flow in one wire induces current in another wire running parallel to the other, as in a transformer. Crosstalk can be reduced by using shielded cables and increasing the distance between conductors.

crosstalk

(1) Electromagnetic interference that comes from an adjacent wire. "Alien" crosstalk is interference that comes from a wire in an adjacent cable, for example, when two or more twisted wire pair cables are bundled together.

(2) (Crosstalk) An earlier family of communications programs for DOS and Windows from Attachmate Corporation, Seattle, WA (www.attachmate.com). Crosstalk products were originally developed by Microstuf, Inc., later merged with DCA and then Attachmate. It was one of the first personal computer communications programs, originating in the CP/M days. Crosstalk used the Crosstalk Application Script Language (CASL).
References in periodicals archive ?
It also offers 360A screening and alien crosstalk immunity.
The standards specify four-pair copper cabling performance up to 500 MHz and add key performance parameters for alien crosstalk that were not characterized in previous drafts.
This design reduces the weight and diameter of Category 6A UTP cables, improving pathway capacity up to 30% for improved airflow through dense data center enclosures without compromising alien crosstalk performance.
The Z-MAX UTP system also features Siemon's new reduced-diameter category 6A UTP cable, a design that nearly equals the pathway space savings possible with the category 6A F/UTP cable utilized in the shielded Z-MAX system without sacrificing alien crosstalk performance.
Alien crosstalk can come either from sources at the same end of a transmitting link (alien NEXT), or from sources transmitting at the other end, or somewhere along the length of the link (alien FEXT).
If the cabling has a measured DB margin, then you can assume alien crosstalk is met by design.
The key to the cable's breakthrough size and performance is a specially designed Isolation Wrap that blocks noise and provides extraordinary Alien Crosstalk isolation (AXi).
The complete system yields leading edge overall channel performance in the highest density physical infrastructure environments (48 ports in a 1RU space), reliably achieving 10Gb/s performance while eliminating the time and cost of burdensome alien crosstalk testing.
2-10 requirements in both "channel" and "permanent link" configurations, including alien crosstalk, return loss, insertion loss, propagation delay, and delay skew.
More troublesome is the fact that complex and time-consuming field diagnostics are required to assess alien crosstalk in the installed cabling plant.
The RoundFlex(TM) Cable technology features an internal cross-web construction that keeps Alien Crosstalk at an exceptionally low level while attaining a smaller cable diameter.