Diskussion:HDBaseT

Wofür steht die Abkürzung? Aus welcher Bedeutung ist der Begriff HDBaseT entstanden?

--Robbit (Diskussion) 09:23, 26. Nov. 2019 (CET)

HD → High Definition; BaseT → 10BASE-T/100BASE-TX/1000BASE-T (BASE = Basisband-Modulation; -T = Twisted Pair) --Zac67 (Diskussion) 19:37, 26. Nov. 2019 (CET)

Eine entsprechende Anfrage über die HDBaseT FAQs wurde von HDBaseT wie folgt beantwortet:

Betreff: RE: New submission on HubSpot Form "FAQ Question"

Datum:   26.11.2019, 16:25
Von:     […]@hdbaset.org
An:      […]

Hi Rolf,

It goes after the 10BASE-T, 100BASE-T, 1000Base-T naming convention
In these names:
 * The number stands for the bandwidth in Mbps
 * The Base stands for Baseband Signaling
 * The T stands for Transmission

So the HD stands for High Definition (Video).

We actually do more than that: Uncompressed UHD 4K60 4:4:4
But it is still under the brand name of HDBaseT.
Extension of Uncompressed UHD 4K60 4:4:4 is defined under HDBaseT Spec 3.0

So I am not sure what is the purpose of you asking this question… I see you are a technical author. […]

Grüße, --rolf_acker (Diskussion • Beiträge • Logbücher) 18:33, 27. Nov. 2019 (CET)

Interessant - The T stands for Transmission ist allerdings Quatsch (im Physical Layer geht's immer um Transmission). '-T' steht für Twisted Pair, s. IEEE 802.3 1.2.3 Physical layer and media notation:

Therefore, a means of identifying each implementation is given by a simple, three-field, type notation that is
explicitly stated at the beginning of each relevant clause. In general, the Physical Layer type is specified by
these fields:
    <data rate> <modulation type> <additional distinction>
The data rate, if only a number, is in Mb/s, and if suffixed by a “G”, is in Gb/s. The modulation type (e.g.,
BASE) indicates how encoded data is transmitted on the medium. The additional distinction may identify
characteristics of transmission or medium and, in some cases, the type of PCS encoding used (examples of
additional distinctions are “T” for twisted pair, “B” for bidirectional optics, and “X” for a block PCS coding
used for that speed of operation).

Tatsächlich ist die Bezeichnung nach dem Schema für 802.3-Standards insgesamt wenig sinnvoll, da HDBase-T kein Ethernet ist, sondern eine Anwendung mit eigenem Protokoll und Leitungscode. --Zac67 (Diskussion) 19:25, 27. Nov. 2019 (CET)