vga cable

upup

Executive Member
Joined
Jun 1, 2009
Messages
9,031
Hi,
I need to make a 10 meter vga cable, from a computer to a tv.
I got 2 types of cables, a data cable 11 cores, its rather heavy and a cat 5 cable 8 cores.

I would prefer to use the cat cable, but not sure what the minimum cores is.

a vga cable that work got 11 pins wired .
Do anyone know which pins I must use, minimum that is.
 

sajunky

Honorary Master
Joined
Nov 1, 2010
Messages
13,124
You need:
- RGB and corresponding analog ground wires - 6 wires
- Horizontal (13) + Vertical sync ((14), plus TTL ground (10) - 3 wires
- ID pins - 4 wires. If cable is dedicated, it can be permanently coded in the plug (no extra wires required).

This makes total 9 wires minimum. RGB wires must be shielded. 10 meters is to long to achieve quality at high refresh rates. Think about digital solutions like HDMI cable with converters.
Pinout: http://pinouts.ru/Video/VGA15_pinout.shtml
 
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AstroTurf

Lucky Shot
Joined
May 13, 2010
Messages
30,549
Just download Electrodroid from an app store.

It has images and all the info you need for just about any cable out there.
 

Sonic2k

Executive Member
Joined
Feb 7, 2011
Messages
7,637
Using LAN (CAT) cable for this is going to be a disaster.
The best I could get, using a custom-made VGA cable, was 4m, they had to cut it back because I started to get ghosting on the projector (1024x768 @ 75Hz)
 

upup

Executive Member
Joined
Jun 1, 2009
Messages
9,031
Pins used are (1) R+, (2) G+, (3) B+) , (6) R-, (7) G-, (8) B-, (10) synch ground, (13) H+, (14) V+

I am first going to try this with a lan cable.
 

sajunky

Honorary Master
Joined
Nov 1, 2010
Messages
13,124
Pessimist in this case, but while using LAN cable make sure to use correct (twisted) pairs for R+/R-, etc...
For sync it requires two ground wires (10+13 one pair and 10+14 second pair), for total 10 wires.

Good luck.
 
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