Talk:D-Terminal

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Panasonic HVX-200

I live in North America, and I think it should be noted here that my only experience with this type of connector is on the Panasonic HVX-200, a camera designed in Japan, but quite popular in the US. A D5(?) adapter is included with the camera in order to provide a component video output. —Preceding unsigned comment added by 205.213.124.37 (talk) 16:00, 30 September 2009 (UTC)[reply]

HDMI vs D5

Are they at a format war? (at least in Japan). Also, the JA article claims it is the best in the market. Can anyone verify?--sin-man 06:15, 27 November 2006 (UTC)[reply]

Links to D1/D2/D3 incorrect

I removed the links to the D1/D2/D3 video/tape formats because they aren't related to the D4 connector. D1 thru D4 are Japanese consumer video formats. Megapixie 29 June 2005 05:15 (UTC)

Actually, this is partially incorrect. There is no D4 videotape format (see "D4 and Tetraphobia" below), and D1 and later formats are not consumer formats, they are professional, due to their high quality, which naturally leads to their high cost... :) Pardon my nitpicking... misternuvistor 08:10, 18 November 2006 (UTC)[reply]

Incorrect "i" instead of "p"?

For the description of pin 9, when it is set to 5V, shouldn't it be "59.94p/60p" not "59.94i/60p"?

You are quite correct - I've fixed this now. Thanks Megapixie 01:09, 6 December 2005 (UTC)[reply]

Pinout

I've removed the pinout -- we're an encyclopedia. Our goal here is to describe the D4 video standard -- not to copy the standard document or write a "guide to hacking the D4 video standard". However, an external link to the pinout will be useful -- De Zeurkous (root@lichee.nichten.info)

A lot of the other connector articles SCART, VGA connector etc include pinouts. It's factial - it's not how to information - the article is fairly short - so it's not like it's forcing out other information. I don't see how not having it here improves the article. Megapixie 18:58, 28 September 2006 (UTC)[reply]

I'm aware of the inclusion of pinouts in other articles -- I just didn't get around to removing them -- and repeating this discussion :x While some articles are short either by nature or lack of information, that doesn't mean we should add non-encyclopedic material to "fill up the void". Just let is grow at it's natural pace, it will become larger as people add information. Again, we are here to describe the D4 standard, nog to copy it's exact specifications -- De Zeurkous (root@lichee.nichten.info),

Why is the factual, verifable pinout of a D4 connector (the subject of the article) - less encyclopedic than say Items in the Metroid series ? I just don't why it's not encyclopedic - especially since you say that it would be useful if included on an external link. Puzzled. Megapixie 19:15, 28 September 2006 (UTC)[reply]

To begin with, I do not know the exact policy, but i'd say WP:NOT applies to this case, specifically WP:NOT#Wikipedia is not an indiscriminate collection of information. That said, Items in the Metroid Series should in my opinion reside in a Wikibook. However, since I have the impression that here are very few editors (as opposed to Wikin00bs) that edit such fancrufty articles responsibly, i'm reluctant to propose anything, because it's more then likely nobody actually cares that much. From the same perspective, there should probably be a wikibook titled "Audio and Video connections hacking guide" or something similar, which would contain the pinouts and a load of other information, mostly in the form of practical advice -- information that isn't encyclopedic, either, but still useful. I'm not asking for sources -- i'm just saying that a direct print of the pinout isn't encyclopedic. If it would not have violated WP:NOR, i'd put it on my website and

link to it from this article, just for the sake of having a link to it from the article. It's just not the type of information that would fit in an encyclopedia, that's all -- De Zeurkous (root@lichee.nichten.info)

Okay - but looking at what that bit of WP:NOT actually says (I'm assuming you are refering to this section) - my emphasis:

Instruction manuals. While Wikipedia has descriptions of people, places, and things, Wikipedia articles should not include instruction - advice (legal, medical, or otherwise), suggestions, or contain "how-to"s. This includes tutorials, walk-throughs, instruction manuals, video game guides, and recipes. Note that this does not apply to the Wikipedia: namespace, where "how-to"s relevant to editing Wikipedia itself are appropriate, such as Wikipedia:How to draw a diagram with Dia. If you're interested in a how-to style manual, you may want to look at Wikihow or our sister project Wikibooks.

The pinout isn't instructions - it falls under the first clause - it's a description of a thing - a precise technical description. It's not advice or a "how to" document. In your own words you said that the information was potentially useful and should be linked to (which is a strange inversion of WP:EL) - why not just include it here ? Should the chemical articles not include technical information - i.e. Aluminium because it's too technical ?

If you were to sit down and list all the things you might want to have in this article I think you'd come up with.

A history (design and first use)
A diagram of the connector
A photograph of the connector
A pinout of the connector

If you have a look at the linked jp article (http://ja.wikipedia.org/wiki/D%E7%AB%AF%E5%AD%90) you'll find exactly the same information - so it's not just me who thinks it's encyclopedic. Megapixie 20:19, 28 September 2006 (UTC)[reply]

I didn't even notice that section yet :^) A history would not be an instruction manual -- however, if it did precisly specify the pinouts of all connectors and the signalling requirements, it would be one. Take SCSI as an example (i know, the article itself is a mess, but the SCSI family is somewhat notorious itself). Describing How, Who, Why, What, When, etc in a history should be no problem -- but when we get to the exact specification, we would probably collide with the general audience principle. Correct me if i'm wrong, but AFAIK that's why wikibooks was created -- to host content more applicable to specific audiences. Since in most cases pinouts of connectors are worthless without diagrams, I'll count them as one. A photograph should be no problem -- it helps people visualize what the article is about. I do not now the policies of the Japanese Wikipedia, but I'd say they should have it removed from there, too -- De Zeurkous (root@lichee.nichten.info), 20:52, 28 September 2006 (UTC)

I've just spent the last 15 minutes for a guideline or policy that says that information too technical for a general audience should be excluded from the article - I didn't find anything. Reading Wikipedia:What is a featured article? - point 1b) says that an article should be comprehensive and should "not neglect major facts and details" - the pinouts are a pretty major detail given they are 90% of the function of the connector - noting point 4 - and reading Wikipedia:Summary_style#Levels_of_desired_details - it states " ...some readers need a lot of detail on one or more aspects of the topic (links to full-sized separate articles). We must serve all groups. " - i.e. we must address a general audience and people who will want more information. I'm certain that some people will be interested in the pinout. Note that the physical specifications of the connector - i.e. the shell casing width, the relative pin offsets, lengths, diameters, etc. aren't included - because that would be too much

information.

Take the example article Aluminium there is a lot of information there that is too technical for the average person on the street. Including the pinouts makes the article comprehensive in my opinion, and excluding it makes it less complete.

You are going to have to cite a specific guideline or policy which supports your argument otherwise I'm going to re-add the pinout. Megapixie 21:35, 28 September 2006 (UTC)[reply]

Since there seems to be no specific policy regulating this -- I have to agree with that -- and this seems to be a more fundamental matter, I propose we move this discussion to Wikipedia talk:What Wikipedia is not, so we can settle this once and for all. I'm not touching the pinout section of the article further until a clear consensus is reached there. Agreed? -- De Zeurkous (root@lichee.nichten.info), 22:00, 28 September 2006 (UTC)

Agree. Megapixie 07:49, 29 September 2006 (UTC)[reply]

Discussion started at [1] Megapixie 08:14, 29 September 2006 (UTC)[reply]

Per the discussion at WP:NOT I have re-instated the pinout. Megapixie 04:58, 26 October 2006 (UTC)[reply]

I'm a bit late to this discussion, but I would agree that having the pin-out is not only acceptable, but desirable. -- Ned Scott 05:04, 26 October 2006 (UTC)[reply]

While I still do not agree, I will comply with the consensus and keep the pinout -- De Zeurkous (root@lichee.nichten.info), Tuesday October 31 22:21 UTC 2006

D4 and Tetraphobia...

I'm kind of suprised that there is a video connector in Japan named D4, since the number 4 in most Asian cultures is very taboo, aka tetraphobia (similar to the stigma the number 13 has in western cultures, better known as triskaidekaphobia). In fact, this is why there is no D4 digital videotape format, only D1, D2, D3, and then skipping to D5, all of them developed in Japan. Also, this was also the reason for why palm-top computer maker Psion didn't release a Series 4 computer after their Series 3, calling their next model the Series 5 instead, keeping their Asian market in mind. So I wonder why the EIAJ decided to go ahead and call it D4... misternuvistor 07:59, 18 November 2006 (UTC)[reply]

Just found this question. This is a very late answer, but here we go: in Mandarin Chinese the number 4 is always pronounced "si", identical to the word "si" that means death. That is why Chinese always try to avoid this number, even in number plates of cars. In Japan the number 4 is pronouned "yo-" (Japanese) or "yon" (Japanese) or "shi" (imported Chinese) or even "foa" (imported English). Also the Japanese reading "shi" for the number 4 sounds the same as the imported Chinese word for death "shi". In especially sensitive areas like floor and room numbers in hospitals, where the life is at stake, Japanese try to avoid that number too. However in telephone numbers (even in case of medical doctors), car number plates, model numbers etc. nobody is afraid of the number 4 - because the modern Japanese will never read it "shi", they will stick with one of the other possible readings. Therefore the D-Terminal in version D4 will be pronounced either /di:-yon/ or /di:-foa/ ... only. ;-) --Allgaeuer (talk) 21:56, 27 July 2008 (UTC)[reply]

Ahh, I see. Quite interesting, I was not aware of the alternate pronunciations the number 4 had in the Japanese language, where that would make the difference. Thanks for the info! misternuvistor (talk) 14:14, 23 March 2009 (UTC)[reply]

Male vs. female

The photo in the article on the left side shows the backplate of some device with two female D-Terminal connectors ("D4"), and the photo on the right side shows a male D-Terminal connector with cable, however the pinout drawing shows a female connector, not a male one as was written. Have corrected the subtitle of the pinout. --Allgaeuer (talk) 22:37, 27 July 2008 (UTC)[reply]

D5 never realized

yeah, shouldnt the article mention that while D5 exists on paper it has never been used? As the jp version notes: 現行では理論上、最も高精細な映像が視聴できる事になるが、2009年現在、用語として存在するのみで正式な規格化はなされていない。 --59.84.187.165 (talk) 11:00, 14 September 2009 (UTC)[reply]

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