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Topic: Cable length

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In the News (Sun 16 Dec 18)

 Cable length -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-22)
A cable length is a (Click link for more info and facts about nautical) nautical (An organization regarded as part of a larger social group) unit of measure, for which at least four definitions seem to exist:
Common definition: 1/10 (A unit of length used in navigation; equivalent to the distance spanned by one minute of arc in latitude; 1,852 meters) nautical mile, i.e.
The unit is named after the length of a ship's " (A conductor for transmitting electrical or optical signals or electric power) cable".
www.absoluteastronomy.com /encyclopedia/c/ca/cable_length.htm   (235 words)

 Cable impedance   (Site not responding. Last check: 2007-10-22)
If the cable length is an extremely large number of wave-lengths at the frequency of that AC signal, and you measure the ratio of AC Voltage to AC current in that traveling wave, then that ratio is called the characteristic impedance of the cable.
For ordinary coaxial cable used at reasonable frequency, the characteristic impedance depends on the dimensions of the inner and outer conductors, and on the characteristics of the dielectric material between the inner and outer conductors.
In a nut shell the characteristic impedance of a coax cable is the square root of (the per unit length inductance divide by the per unit length capacitance).
www.epanorama.net /documents/wiring/cable_impedance.html   (4288 words)

 ClubOC -   (Site not responding. Last check: 2007-10-22)
Length is the other major concern., That last 50-pin cable I looked at did a pretty good job at hosing me between the first two connectors.
Offering enough length between the first two connectors to actually be able to USE the first connector, even in the top bay of the typical home PC.
Total cable length is not obscene and the rounded cable "look" does add a touch of class to the enclosure.
www.cluboc.net /reviews/cables/68pin_scsi   (934 words)

 Effects of multiple crimps and cable length on reflection signatures from long cables.
Crimp lengths varied from 12 mm (1 grip width) for the shortest cable, as shown by the right cable in FIGURE 2B, to 48 mm (4 grip widths) for the longest cable.
The actual length of each cable was determined as the distance from the pulse source to the cable end, marked by a near vertical upward reflection at a horizontal scale of 1 ft/div.
As the cable length increases, the crimps must necessarily be longer for identification, and a combination of these two factors produces signal reflections that correspondingly become wider.
www.iti.northwestern.edu /publications/tdr/1994_papers/cable.html   (4642 words)

 Cable length limits for serial cables, parallel cables, ethernet cables, 10base-t cables, 100base-t cables, usb cables, ...   (Site not responding. Last check: 2007-10-22)
Cable length limits for serial cables, parallel cables, ethernet cables, 10base-t cables, 100base-t cables, usb cables, or firewire cables.
The total length of wire segments between a PC and a hub or between two PC's cannot exceed 100 Meters (328 feet or about the length of a football field).
FireWire cables use 28 AWG wire and are limited to 4.5 meters maximum cable length.
www.connectworld.net /cgi-bin/iec/02DTLNGHLMT1   (480 words)

 Cable Length Measurement of Wire, Cable Length Measuring Devices, Cable Length Counter for Wire Cable Pipe & Tube
The Length Rite 100 is designed to meet the low speed, moderate length measurement accuracy requirements of most wire harness fabricators.
The Length Rite 600 has been designed to meet the continuous cable length measuring requirements of wire manufacturers and wire harness manufacturers requiring high accuracy length measurement.
Taymer's Length Rite technology is well suited for this requirement and back and forth movement does not impact the machines' overall length measurement accuracy of 0.05%.
www.taymer.com /html/wire___cable_length_measuremen.html   (426 words)

 Serial Cable Length Limits (RS232, V.35, RS530, RS422/449), SCSI Cable Length Limits, Parallel Cable Length Limits   (Site not responding. Last check: 2007-10-22)
Use of special high quality cable may in some cases allow this limit to be extended to as much as 150 feet.
The maximum cable length shall be 6 meters (primarily for connection within a cabinet) A stub length of no more than 0.1 meters is allowed.
The maximum cable length shall be 25 meters (primarily for connection outside of a cabinet).
www.connectworld.net /cable-length.html   (418 words)

 EasyHeat Freeze Free Pipe Heating Cable
When it is cold, the cable's core has many conductive paths that generate enough heat to keep the water flowing in the pipe.
Multiply the cable length required per foot of pipe by the length of your pipe.
These charts will tell you the length of the cable you need per foot of pipe and also the recommended distance to leave between each spiral wrap of cable on the pipe.
www.heatersplus.com /pipe.htm   (666 words)

 Does cable length matter?
The cable probably was not made correctly, the wrong kind of cable and/or plugs were used to make it, or it was not installed correctly.
If all three cables were made wrong or with the wrong components, the short ones may still work and the long one not work (see http://duxcw.com/faq/network/ends.htm).
If all of these conditions are meant and the cable and plugs have been carefully inspected, flip a coin, cut the plug off one end of the cable, replace it, inspect it, and test the cable again.
duxcw.com /dcforum/DCForumID2/1261.html   (826 words)

 HTGuide Forum - different length speaker cable...
I was read an engineers review of this subject and it prooved to be very interesting...essentially for you to notice any difference in cable lenght you'd have to have several miles worth of difference and not move your head an inch either way..basically its a simply not an issue to worry about.
In a speaker cable we don't care about capacitance because it's a low impedance interface, but reactance caused by the wires inductance is important and is additive by the foot.
The difference between a foot long cable and a 50 foot cable would have the longer cable acting as a low pass filter.
www.htguide.com /forum/printthread.php4?t=9764   (1197 words)

 Ethernet Cable length Specifications
This limitation results from the timing of the Ethernet signals on the cable and not necessarily the cable characteristics, and is, therefore, a "hard" number.
Excluding patch cables, cross connects, etc., the maximum horizontal cable distance shall be 90 meters (295 ft.).
10 meters (33 ft.) is allowed for the total length of patch cords and cross connect jumpers in a horizontal channel.
www.duxcw.com /faq/network/cablng.htm   (353 words)

 Cable marking machines & wire marking machines. Cable length measurement & more.
Taymer's Cable Hot Foil Printers are used in the wire and cable industry to produce a clear, bright legend with a very accurate sequential cable length measurement mark in meters or feet.
Taymer has taken the cable length measurement technology developed for cable hot foil printers and wire marking machines and developed dedicated wire and cable length measurement machinery.
High accuracy in cable length measurement is critical to understanding your costs and customer satisfaction.
www.taymer.com   (485 words)

 Cabling - Cable Length   (Site not responding. Last check: 2007-10-22)
But I have cables that are around 1 foot in length and they work just fine, but if you want to go with the standard (so that tech support is forced to help you) then make them at least 1 meter.
I have found that a molded twisted pair cable (2m) between a pc104 ethernet connection and a Cisco BR 350 severally limits transmission rates from pc104 to base computer (components are contained in water tight enclosures to be used outside).
There is a length limitation on the one allowable cable between two switches, of course I cant remember what it is, but it seems to me it is relatively short (3m maybe?).
www.tek-tips.com /gviewthread.cfm/lev2/9/lev3/59/pid/575/qid/172419   (1161 words)

 cable length - The cable Spot   (Site not responding. Last check: 2007-10-22)
If the cable length is an extremely large number of...
A cable length is a nautical unit of measure, for which at...
as a maritime measure, a cable's length is either 120 fathoms (720...
www.womensoc.com /cable-length   (380 words)

 Does cable length affect available bandwidth or network status? - Got | Apex? Forums
I think that the minimum cable length for ethernet cable is 18 inches, but it should work anyways.
My neighbor cleared out all of his old BNC cables and OLD old network crap and I was lucky enough to grab them before they hit the trash receptical, I ran the crap wires through the house, 200+ feet, and I am able to auto detect @ 10MBPS, 100 the network does not exist...
If I connect my laptop with a short cable connected to the jack outside, which is connected to another jack inside that leads to the router, I get a 100 mb network to the router and the internet just fine.
www.gotapex.com /forums/showthread.php?t=18163   (1042 words)

 Custom length IDE cable (HD, CD/DVD, Floppy) - MP3Car.com Forums
The maximum length for an IDE cable allowed by the ATA/IDE Standard is 18 inches; and that is the length of the cable that is supplied with most drives.
In some cases, this 18-inch length may not be long enough to span the distance from the motherboard or IDE controller to the drive bay in which the drive is being installed.
Although it’s possible to obtain or make a custom IDE cable with a length exceeding 18 inches, be aware that the devices attached to such a cable might not operate properly due to noise and/or signal attenuation.
www.mp3car.com /vbulletin/showthread.php?t=13689   (725 words)

 Asante Support Forums - Cable length
The cable length is an IEEE ATE/ITE standard (this is the length of the inter-packet frame gap).
Shorter cables will cause problems in a switched environment.
We recommend that CAT5 or CAT5e cable be used (CAT6 was not accepted as a 'standard' for IEEE installations).
www.asante.com /forums/topic.asp?TOPIC_ID=1139   (110 words)

 ethernet cable length   (Site not responding. Last check: 2007-10-22)
Assuming 2.1e08 m/s as the speed of light in a copper cable, then by shortening your cable by 2 meters would reduce your latency by 9.5 ns.
Off the top of my head, I don't recall the maximum length ethernet cables can be, but I'd be willing to bet you're not exceeding it.
Mind you, I'm saying this without actually looking at your system, but my off-hand opinion is that your time would be better spent than by trying to reduce cable length to the absolute minimum possible.
www.beowulf.org /pipermail/test/1999-August/007020.html   (264 words)

 Signal Integrity vs. Transmission Rate and Cable Length for LVDS Serializers - Maxim/Dallas
One end of the cable is connected to the MAX9207 output using two through-holes (1A and 1B) on the MAX9207 EV board.
As the cable length goes beyond 30ft, the data rate decreases as the length increases.
It should be noted that the cable's high frequency transmission line character is one of the key factors determining the signal quality.
www.maxim-ic.com /appnotes.cfm/appnote_number/1856/ln/en   (1512 words)

 Speaker Cable Length Differences: Do they matter?
Folks often wonder if the cable length between the main front channels need to be identical or close to identical.
They are often misinformed by exotic cable vendors or cable forum cult hobbyists that cable lengths need to be kept identical to avoid amplitude or phase/time delay differences between the two.
The resistive portion of the cables series resistance as a function of frequency due to skin effect.
www.audioholics.com /techtips/audioprinciples/interconnects/SpeakerCablelength.php   (1109 words)

 broadband » Forums » Comcast HSI » Cable length and signal degradation...?   (Site not responding. Last check: 2007-10-22)
I'll be splitting the cable right after it comes into the house: one line to cable modem and one line to the 4-way splitter for all the TVs.
Within the US Cable Systems, upstream channels are generally allocated from the 5-42MHz range while down stream channels are generally allocated from the 50-750MHz range depending on the capabilities of the given system.
As for cable if you can spring for it go for the RG-6QS (quad shield), you may not need the extra protection but it certainly wont hurt.
www.dslreports.com /forum/remark,14362410   (952 words)

 Cisco - V.35/RS449 Cable Length Recommendations   (Site not responding. Last check: 2007-10-22)
These cable length values are the maximum recommended for normal timing modes:
The EIA422 standard specifies a graph of cable length versus data rate based on AC attenuation.
Clock margin is calculated by assuming a maximum round trip delay of 4 ns/ft of the cable, with respect to half the period of the clock plus some guardband.
www.cisco.com.ru /warp/public/74/70.html   (232 words)

 HTGuide Forum - Video cable length?
I'd probably need the same length for composite as well, but since that's just for VCR viewing it's not that important.
But what I dislike from a speaker perspective, is that if all your equipment is in the back, the speaker runs to the mains become much longer than I personally like.
I think as long as a cable is 75 ohm, it can carry that video signal no problem.
www.htguide.com /forum/showthread.php4?t=2753   (397 words)

 Blog # 1007 Parallel printer cable length
If the cable is too long, *ACK may become too distorted to cause a clean logic transition and the expected interrupt may never occur, stalling the printer.
You have to consider that in those days, cables were usually IDC ribbon stuff, not shielded, jacketed cable like we use now, so losses were actually lower due to lower reactive effects.
The docs for OS/2 stated that 6 feet was the maximum length the printer cable could be for a parallel port connection.
aplawrence.com /Blog/B1007.html   (1939 words)

 WinDrivers Computer Tech Support Forums - IDE Ribbon Cable Length
I have been working on a case design that requires my IDE cables to be in the nebighorhood of 36 inches.
I have the cable and crimpers and I have done cables as long as 13 inches but I was never sure just how long they can go.......
Also some of the ATA66/100 cables I have seen has a single wire that is cut out between two of the connectors to break the signal on that line.
forums.windrivers.com /showthread.php?t=20939   (711 words)

 Nautical Measurement
A fathom is 6 feet, the length of rope a man can extend from open arm to open arm.
A cable length is the length of a ship's cable, about 600 feet.
A nautical mile is 10 cable lengths, or 6,076 feet.
www.factmonster.com /ipka/A0769559.html   (97 words)

 NetPortĀ® II Print Server - Parallel and Serial Port / Cable Issues
The maximum supported length of the parallel printer cable is 6 feet.
Using the NetPort® II print server with a cable that exceeds 6 feet may result in printing problems such as; garbage characters, not printing at all or intermittent printing.
Using the NetPort II with a cable that exceeds 50 feet may result in printing problems such as: garbage characters, not printing at all or intermittent printing.
support.intel.com /support/netport/vintage/sb/cs-015149.htm   (693 words)

 Cable Length
Have any studies been done that show a correlation between average cable length and the overall dimensions of a given floor, the number of closets, etc.
Then you would multiply this zone-average length on the number of drop per zone, and at the end sum all the zones that belong to the same IDF.
Do not also forget to round up amount of cable needed due to 1000 feet packaging: you can only pull a limited amount of full cable runs from a single box, which leaves you with up to 5-10% waste per box.
www.cabling-design.com /helpdesk/answers/858.shtml   (391 words)

 Chevelle Tech - E-brake cable length with Richmond 5
When I swapped from a PG to the Richmond 5 speed the e-brake cable was way too loose.
I would put the car up in the air and pull everything tight and see how much length needs to be taken out of the front cable.
The intermediate cable is slackened because the hook on the crossmember is now further back and there isn't enough adjustment in the front cable to compensate.
www.chevelles.com /forums/showthread.php?t=29061   (340 words)

 NASIOC - Optima Red top cable length
What's needed is called a "starter to switch" cable, which will have a single ring terminal on each end.
People have used Legacy cables and they work but this cable is easy to find at any parts store and its $4-$5.
The Legacy cable will work and give more of an OEM appearance, but will be much more expensive and the dealer will probably have to order it.
forums.nasioc.com /forums/showthread.php?t=556186   (351 words)

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