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#1
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
Hi Guys,
I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but I need to pass the cable through some small holes for the looming (sp?) and the DB15 connectors wont fit unless I make the hole bigger. I am thinking about running the VGA singal over CAT5e, which a Google search seems to suggest is possible. I was wondering if anyone had any better ideas, keeping costs fairly low. Has anyone here had any success cutting the end off a VGA cable and wiring on a new DB15 for example? Thanks in advance, -Al |
#2
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
wrote in message
... Hi Guys, I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but I need to pass the cable through some small holes for the looming (sp?) and the DB15 connectors wont fit unless I make the hole bigger. I am thinking about running the VGA singal over CAT5e, which a Google search seems to suggest is possible. I was wondering if anyone had any better ideas, keeping costs fairly low. Has anyone here had any success cutting the end off a VGA cable and wiring on a new DB15 for example? Thanks in advance, -Al Al Well I was going to say different cable for different uses, but then I found this site: http://www.geocities.com/dougburbidge/vgaovercat5.html The author says they've achieved 15 metres. For the cost of the cable and solder time, worth trying. If that doesn't work you can get gadgets that convert from VGA to RJ45 and back again: http://www.svideo.com/vgacat5.html Best Paul. |
#4
posted to 24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
wrote:
Hi Guys, I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but I need to pass the cable through some small holes for the looming (sp?) and the DB15 connectors wont fit unless I make the hole bigger. I am thinking about running the VGA singal over CAT5e, which a Google search seems to suggest is possible. I was wondering if anyone had any better ideas, keeping costs fairly low. Has anyone here had any success cutting the end off a VGA cable and wiring on a new DB15 for example? Thanks in advance, -Al This cable, has a round connector in the center, and is intended to make it easier to penetrate walls. This cable is 50ft long, and claims to support 1600x1200 (refresh rate not stated, could be 60Hz). http://www.tripplite.com/EN/products...xtModelID=3351 Look for more "Easy Pull" items here. They also make DVI and HDMI versions. http://www.tripplite.com/EN/products...?txtEntryID=32 In all the advertising cruft on the pages, it doesn't state what the O.D. of the connector is. It looks like it might be 1" diameter or so, but hard to say for sure. It mentions pulling through 3/4" conduit here. That is, if you trust marketing people to pull cables. http://www.tripplite.com/shared/lite...yer/952906.pdf Another brand example here. RapidRun modular cabling system. 3/4" conduit. http://www.cablemeister.com/product.php?productid=50731 They also make RGBHV to VGA breakout cables. Such a cable would be missing signals for DDC (used by a computer to get resolution information from a monitor), but cables like this are sometimes used for projector devices connected to computers. Your application would probably be happy with the basic RGBHV signals. RGB is color, HV are sync signals. There are several ways to carry sync, including sync on green. So again, the requirements can vary a bit, and having all five RGBHV helps cover all possibilities. http://www.ramelectronics.net/render...ts/VGA2BNC.jpg The idea would be, you make the hole big enough, to pass the BNC connectors one at a time. The example picture above, has made the BNC connectors excessively fancy. A little extra slack on the five coaxes, would probably help. The solution is less ideal than the RapidRun, but perhaps easier to buy locally. You can connect the BNCs with some coax wires with mating BNCs on the end. I suppose you could buy BNC kits, as long as they're designed for the thin coax, and simply fit crimp BNCs on the end of each coax. So that would be another possibility. If soldering a VGA connector, the hard part would be connecting the RGB coax signals. Coax and soldering don't mix. Which is why I put so many "pull" style solutions in the above :-) If you visited me two hours after giving me a soldering job like that to do, I'd be in "full cuss mode". The insulation inside coax melts easily. Paul |
#5
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
On Oct 6, 5:55*pm, Wayne.B wrote:
On Sun, 5 Oct 2008 21:05:00 -0700 (PDT), wrote: Hi Guys, I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but I need to pass the cable through some small holes for the looming (sp?) and the DB15 connectors wont fit unless I make the hole bigger. I am thinking about running the VGA singal over CAT5e, which a Google search seems to suggest is possible. I was wondering if anyone had any better ideas, keeping costs fairly low. http://www.google.com/search?hl=en&q...t+vga+extender generates 257,000 *hits. http://www.google.com/search?hl=en&q=kvm+cat5+extender generates 140, 000 hits. Here's a few that look promising: http://sewelldirect.com/KVMcat5extender.asp http://www.cablestogo.com/product.as...=503&sku=39970 Has anyone here had any success cutting the end off a VGA cable and wiring on a new DB15 for example? You would need the skills of a micro-surgeon and a very fine solder tip. I am liking the ethernet idea. I found these mounts I could use which have sealed end caps for when not in use: http://au.farnell.com/1254803/connec...ol-pcd-rjfrb71 This way it has a fighting chance of surviving in the marine enviroment! -Al |
#6
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
writes:
Hi Guys, I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but I need to pass the cable through some small holes for the looming (sp?) and the DB15 connectors wont fit unless I make the hole bigger. How about cutting the connector from one cable end, pulling the cable and then soldering a new one to the end. Or building entirely new VGA cable the length you want by soldering the connectors yourself to both ends. The soldering the cable consisting of several mini coax condictors and many other conductor DB15 VGA connector is not the easiest job, but doable if you are good at building cables. I have done that kind of soldering myself when I have needed some custon VGA cables for some applications. I am thinking about running the VGA singal over CAT5e, which a Google search seems to suggest is possible. Runnign VGA over CAT5e is possible. There are commercial active adapters that do the conversion "right" and work even for some longer distances. Those cost money but work quite well. Then in Internet there are some simple plans to run VGA over CAT5e cables. When you use a shielded CAT5e cable and not too long distances, those hacks can work quite well but might not give perfect "crystal clear" picture like a real VGA cable or commercial converter would give. Running VGA signal on unshielded CAT5e cable with simple DIY passive adapters is not a vry good idea: the image quality will get worse and your cable will radiate out considerable RF interference which could interfere for example with boat radios. I was wondering if anyone had any better ideas, keeping costs fairly low. I just gave you several ideas. Has anyone here had any success cutting the end off a VGA cable and wiring on a new DB15 for example? Yes. I have done this several times. -- Tomi Engdahl (http://www.iki.fi/then/) Take a look at my electronics web links and documents at http://www.epanorama.net/ |
#7
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
wrote in message
... Hi Guys, I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but I need to pass the cable through some small holes for the looming (sp?) and the DB15 connectors wont fit unless I make the hole bigger. I am thinking about running the VGA singal over CAT5e, which a Google search seems to suggest is possible. I was wondering if anyone had any better ideas, keeping costs fairly low. You have lots of replies to this already, but just curious as to whether you've considered instead putting a small laptop in your "bridge" and using remote desktop or vnc to control your "Nav Station" (assuming its a standard pc). You could even go wireless and avoid the need for cable runs all together. -- Brian Cryer www.cryer.co.uk/brian |
#8
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
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#9
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
wrote in message ... Hi Guys, I need to get a VGA signal from the Nav Station in my boat to the monitor in the bridge. I could just run a VGA cable (about 4m worth) but I need to pass the cable through some small holes for the looming (sp?) and the DB15 connectors wont fit unless I make the hole bigger. I am thinking about running the VGA singal over CAT5e, which a Google search seems to suggest is possible. I was wondering if anyone had any better ideas, keeping costs fairly low. Has anyone here had any success cutting the end off a VGA cable and wiring on a new DB15 for example? Thanks in advance, -Al VGA cable is shielded and CAT5 is not, so you would get some horrible ghosting. BTW, there may still be some ghosting even with VGA cable |
#10
posted to comp.dcom.lans.ethernet,24hoursupport.helpdesk,microsoft.public.windowsxp.hardware,rec.boats.cruising
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VGA over CAT5e
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