Primary channel

In telecommunication, the term primary channel has the following meanings:

  1. The communication channel that is designated as a prime transmission channel and is used as the first choice in restoring priority circuits.
  2. In a communications network, the channel that has the highest data rate of all the channels sharing a common interface.

A primary channel may support the transfer of information in one direction only, either direction alternately, or both directions simultaneously.

Sources
  •  This article incorporates public domain material from the General Services Administration document: "Federal Standard 1037C". (in support of MIL-STD-188)
gollark: > widely used
gollark: There's no (widely used) standard saying "if you're displaying an event/contact information/whatever else, you need these tags/attributes", so you generally just have to work off site-specific classes and structure.
gollark: If you want to, say, pull a list of scheduled events from one website, that's fine, you can do that quite easily, but if you want to do it for *many* websites, it is not.
gollark: But generally speaking, what I mean is that HTML is structured, but for display and not extracting (much) general data.
gollark: Hmm, yes, that is a sensible way to get at least title/description.
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