Hi, what is the difference between these to monitor connectors BNC and D-Sub? b stephen harding Black & White Rhino Press ---------------------------------------- "A man is involved in life, leaves his impress on it, and outside of that there is nothing." Jean-Paul Satre The Contemporary World
b stephen harding wrote:
what is the difference between these to monitor connectors BNC and D-Sub?
Physically, BNC cables ususally have 3, 4, or 5 connectors, consisting of separate red, blue, and green signals. The vertical and horizontal syncs are then spread over the remaining connectors (or on the green wire, if there's only 3 connectors). The BNC cable is better for people needing higher resolutions and refresh rates, or those who need a long cable. The BNC cable can allow a higher bandwidth to travel down the cable, improving the performance of the monitor. The signal is also transmitted `cleaner' and without cross talk. The longer the cable, the more degraded a signal can become, so it is advisable to use a BNC over a D-sub for long cable lengths. Basically, the BNC cable helps to increase the accuracy of the signals that are being transported from the graphics card to the monitor. Hope that's enough explanation, Chris -- __ _ -o)/ / (_)__ __ ____ __ Chris Reeves /\\ /__/ / _ \/ // /\ \/ / ICQ# 22219005 _\_v __/_/_//_/\_,_/ /_/\_\
At 02:13 AM 15/01/2001 +0000, you wrote:
b stephen harding wrote:
what is the difference between these to monitor connectors BNC and D-Sub?
Physically, BNC cables ususally have 3, 4, or 5 connectors, consisting of separate red, blue, and green signals. The vertical and horizontal syncs are then spread over the remaining connectors (or on the green wire, if there's only 3 connectors).
The BNC cable is better for people needing higher resolutions and refresh rates, or those who need a long cable.
The BNC cable can allow a higher bandwidth to travel down the cable, improving the performance of the monitor. The signal is also transmitted `cleaner' and without cross talk. The longer the cable, the more degraded a signal can become, so it is advisable to use a BNC over a D-sub for long cable lengths. Basically, the BNC cable helps to increase the accuracy of the signals that are being transported from the graphics card to the monitor.
That's great. Just to clarify,most cables that come with monitors are D-sub, which are 3' in length. That is not much distance as far as signal loss, is it? I'm mean BNC wouldn't produce a really big difference over such a short distance even if you where to use the max. res. of 1600x1200 at 85Mhz? b stephen harding Black & White Rhino Press ---------------------------------------- "A man is involved in life, leaves his impress on it, and outside of that there is nothing." Jean-Paul Satre The Contemporary World
That's great. Just to clarify,most cables that come with monitors are D-sub, which are 3' in length. That is not much distance as far as signal loss, is it? I'm mean BNC wouldn't produce a really big difference over such a short distance even if you where to use the max. res. of 1600x1200 at 85Mhz?
FWIW, when I switched from a D-sub cable to a BNC on my 17" IIyama monitor at 1280x1024 the difference was immediately noticable. I'm not into graphics or anything flashy - just programming and net stuff - but the difference was obvious even to my eyes.
b stephen harding wrote:
Physically, BNC cables ususally have 3, 4, or 5 connectors, consisting of separate red, blue, and green signals. The vertical and horizontal syncs are then spread over the remaining connectors (or on the green wire, if there's only 3 connectors).
The BNC cable is better for people needing higher resolutions and refresh rates, or those who need a long cable.
The BNC cable can allow a higher bandwidth to travel down the cable, improving the performance of the monitor. The signal is also transmitted `cleaner' and without cross talk. The longer the cable, the more degraded a signal can become, so it is advisable to use a BNC over a D-sub for long cable lengths. Basically, the BNC cable helps to increase the accuracy of the signals that are being transported from the graphics card to the monitor.
That's great. Just to clarify,most cables that come with monitors are D-sub, which are 3' in length. That is not much distance as far as signal loss, is it? I'm mean BNC wouldn't produce a really big difference over such a short distance even if you where to use the max. res. of 1600x1200 at 85Mhz?
That shouldn't be a problem. The only reason why I use BNC is because I have a dual input monitor (1 D-Sub and 1 BNC) so I have two of the computers connected to the one monitor. Makes life much easier ;-) Bye, Chris -- __ _ -o)/ / (_)__ __ ____ __ Chris Reeves /\\ /__/ / _ \/ // /\ \/ / ICQ# 22219005 _\_v __/_/_//_/\_,_/ /_/\_\
Hi,
what is the difference between these to monitor connectors BNC and D-Sub?
b stephen harding Black & White Rhino Press I have read the other replies up to now, but I'm not sure any of them answer your question. BNC is a type of connector used on coaxial cable. Coaxial cable is a type of cable where a single wire is run inside a dielectric material, which is covered with a braided shield, and then with a protective outside insulating covering. To use BNC, you must have BNC input jacks on your monitor. Usually, only the high-end monitors have these. As someone else has already noted, each of
At 08:36 PM 01/14/2001 -0500, you wrote: the colors and the sync signals are sent separately on each coaxial cable. The cables are impedance matched and properly terminated, which eliminates electrical reflections and should improve the video frequency response, which then should give you better resolution. The "sub-d" is a multipin connector, nowadays having 15 pins, that you probably are using now on your monitor-to-video-card connection. Interestingly, my 19" Sony monitor, which has both types of connection, can be switched between inputs, so I could, if I wanted, have 2 computers feeding the same monitor, and I may actually consider doing that. --doug
participants (4)
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b stephen harding -
Chris Reeves -
Derek Fountain -
Doug McGarrett