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This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later. |
and for the connectors UG = Union Guide
When I first started working with "garden hose" in the mid-1980s, transceivers had screw-thread coaxial fittings, meaning that in order to insert one into an existing run, one had to cut the cable (network down, sorry!), install connectors on both ends of the cut, and attach the transceiver (network back up! ...assuming you did it right the first time).
I don't know (or this would be in the article :-), but my impression is that vampire taps were a later innovation to simplify this process immensely. The transceiver in the picture looks awfully familiar, and I wouldn't be surprised if it isn't the same model of transceiver we eventually adopted; from Cabletron, if memory serves.-- NapoliRoma ( talk) 05:18, 21 December 2007 (UTC)
10BASE5 cable is designed to allow transceivers to be added while existing connections are live. This is achieved using a vampire tap
Transceivers can be added to 10BASE5 cable via N connectors or with a vampire tap; the latter makes it possible to add transceivers without interrupting existing connections
Vampire taps are older than ethernet. The 3 megabit ethernet for the Xerox Alto used cable TV cable and taps. I believe that they are still used for cable TV, though not the exact same ones. 10base5 transceivers are made with either vampire taps or N connectors. Early 10base2 used transceivers with N connectors and N to BNC adaptors. Gah4 ( talk) 06:06, 14 January 2017 (UTC)
The year of introduction and years of (relative) popularity would be useful here.. '''Jason404''' ( talk) 03:46, 21 September 2008 (UTC)
The question of spacing the Vampire Taps on yellow hose comes up regularly on Usenet. It has nothing to do with the "wavelength" of the signal. According to the guy who did the design work and wrote the specification (whose name I forget - this is not my field, I just spotted the subject, perhaps you're reading this?) the whole thing was based on a statistical simulation which led to development of a simple rule-of-thumb for installation engineers. The idea was to avoid crowding too many taps together, which would have created a big reflection by constructive interference. The precise spacing and positions are unimportant, but became something of an urban myth, resulting in cupboards full of coiled up surplus cable...
Regards, everyone, Derek Potter —Preceding unsigned comment added by 83.105.15.249 ( talk) 09:49, 6 March 2009 (UTC)
From reading the articles on Baseband and Broadband, I would have thought that "baseband signalling as opposed to broadband" is incorrect.
Seems to me that baseband in this case is referring to the fact that its frequency range starts at zero, not that is of a limited range, and that it should "be considered as synonym to lowpass, and antonym to passband, bandpass or radio frequency (RF) signal."
The Broadband article lists "Baseband" as an antonym only in the case of video.
I'm not an expert so I don't know what the best term to use is, but I suspect it should be "baseband signalling as opposed to passband"? CupawnTae ( talk) 21:11, 30 March 2010 (UTC)
10Base5 was superceded by 10Base-T years before wireless networking became popular. The main drawback of 10Base5 wasn't low transmission speed, they are all 10Mbps, it was the huge pain thicknet was to install and maintain. 71.202.81.207 ( talk) 22:41, 3 June 2011 (UTC)
I believe that the included photo Image:Xerox PARC ethernet cable.jpg is not a 10Base5 cable but a 3 megabit /sec Ethernet cable. 10Base5 is the standard version. 3 megabit/sec Ethernet preceded that. Ethernet != 10Base5 Remaker ( talk) 19:12, 20 December 2011 (UTC)
The logical simplicity of tapping new nodes onto the in-place network cable is complicated by the on-site craftsmanship required to successfully install a tap, and the dire consequences of a mishap during installation. It isn't all that hard. I did it for some years, with the cable in a cable tray above my head, and never had a problem. I started with a brand new, and so nice and sharp, tap tool. If you use an old, dull, tool you might have more problems. Worst case, you cut the table and put N connectors on it. Gah4 ( talk) 06:32, 14 January 2017 (UTC)
(moved from User Talk:Zac67) Hi there, just trying to understand about the deliberate "deeplinking" on 10BASE5. What's the purpose of it? It's not that big a deal either _way, just puzzled why someone would intentionally want to wikilink to a redirect in this case. Waggie ( talk) 02:44, 16 February 2020 (UTC)
Belden, the one that seems to have made it, has "request quote". This one seems to sell it for $7216.40 for 1000 feet. Gah4 ( talk) 11:24, 8 April 2023 (UTC)
This is the
talk page for discussing improvements to the
10BASE5 article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google ( books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
This article is rated C-class on Wikipedia's
content assessment scale. It is of interest to multiple WikiProjects. | |||||||||||||||||||||||||||||||
|
This article is based on material taken from the Free On-line Dictionary of Computing prior to 1 November 2008 and incorporated under the "relicensing" terms of the GFDL, version 1.3 or later. |
and for the connectors UG = Union Guide
When I first started working with "garden hose" in the mid-1980s, transceivers had screw-thread coaxial fittings, meaning that in order to insert one into an existing run, one had to cut the cable (network down, sorry!), install connectors on both ends of the cut, and attach the transceiver (network back up! ...assuming you did it right the first time).
I don't know (or this would be in the article :-), but my impression is that vampire taps were a later innovation to simplify this process immensely. The transceiver in the picture looks awfully familiar, and I wouldn't be surprised if it isn't the same model of transceiver we eventually adopted; from Cabletron, if memory serves.-- NapoliRoma ( talk) 05:18, 21 December 2007 (UTC)
10BASE5 cable is designed to allow transceivers to be added while existing connections are live. This is achieved using a vampire tap
Transceivers can be added to 10BASE5 cable via N connectors or with a vampire tap; the latter makes it possible to add transceivers without interrupting existing connections
Vampire taps are older than ethernet. The 3 megabit ethernet for the Xerox Alto used cable TV cable and taps. I believe that they are still used for cable TV, though not the exact same ones. 10base5 transceivers are made with either vampire taps or N connectors. Early 10base2 used transceivers with N connectors and N to BNC adaptors. Gah4 ( talk) 06:06, 14 January 2017 (UTC)
The year of introduction and years of (relative) popularity would be useful here.. '''Jason404''' ( talk) 03:46, 21 September 2008 (UTC)
The question of spacing the Vampire Taps on yellow hose comes up regularly on Usenet. It has nothing to do with the "wavelength" of the signal. According to the guy who did the design work and wrote the specification (whose name I forget - this is not my field, I just spotted the subject, perhaps you're reading this?) the whole thing was based on a statistical simulation which led to development of a simple rule-of-thumb for installation engineers. The idea was to avoid crowding too many taps together, which would have created a big reflection by constructive interference. The precise spacing and positions are unimportant, but became something of an urban myth, resulting in cupboards full of coiled up surplus cable...
Regards, everyone, Derek Potter —Preceding unsigned comment added by 83.105.15.249 ( talk) 09:49, 6 March 2009 (UTC)
From reading the articles on Baseband and Broadband, I would have thought that "baseband signalling as opposed to broadband" is incorrect.
Seems to me that baseband in this case is referring to the fact that its frequency range starts at zero, not that is of a limited range, and that it should "be considered as synonym to lowpass, and antonym to passband, bandpass or radio frequency (RF) signal."
The Broadband article lists "Baseband" as an antonym only in the case of video.
I'm not an expert so I don't know what the best term to use is, but I suspect it should be "baseband signalling as opposed to passband"? CupawnTae ( talk) 21:11, 30 March 2010 (UTC)
10Base5 was superceded by 10Base-T years before wireless networking became popular. The main drawback of 10Base5 wasn't low transmission speed, they are all 10Mbps, it was the huge pain thicknet was to install and maintain. 71.202.81.207 ( talk) 22:41, 3 June 2011 (UTC)
I believe that the included photo Image:Xerox PARC ethernet cable.jpg is not a 10Base5 cable but a 3 megabit /sec Ethernet cable. 10Base5 is the standard version. 3 megabit/sec Ethernet preceded that. Ethernet != 10Base5 Remaker ( talk) 19:12, 20 December 2011 (UTC)
The logical simplicity of tapping new nodes onto the in-place network cable is complicated by the on-site craftsmanship required to successfully install a tap, and the dire consequences of a mishap during installation. It isn't all that hard. I did it for some years, with the cable in a cable tray above my head, and never had a problem. I started with a brand new, and so nice and sharp, tap tool. If you use an old, dull, tool you might have more problems. Worst case, you cut the table and put N connectors on it. Gah4 ( talk) 06:32, 14 January 2017 (UTC)
(moved from User Talk:Zac67) Hi there, just trying to understand about the deliberate "deeplinking" on 10BASE5. What's the purpose of it? It's not that big a deal either _way, just puzzled why someone would intentionally want to wikilink to a redirect in this case. Waggie ( talk) 02:44, 16 February 2020 (UTC)
Belden, the one that seems to have made it, has "request quote". This one seems to sell it for $7216.40 for 1000 feet. Gah4 ( talk) 11:24, 8 April 2023 (UTC)