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Junior Varsity
X32 Discussion
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<blockquote data-quote="Timo Ulkuniemi" data-source="post: 107772" data-attributes="member: 1978"><p>Audio cable for CAT</p><p></p><p></p><p></p><p></p><p>Hello</p><p></p><p>Two years ago I purchased a small unit from Switzerland - it had TOSLINK-input-box and RJ45 connection - plus second box with RJ45 and TOSLINK-out connection. Separate PSU on one end. It was designed to carry 8 channels of audio plus power to second box over ethernet-cable - 100 meters distance. As my snake is 25 channels and I could use extra channels, I decided to try feed 8 channels through snake ch25. My snake is 30 meters long and I wanted to be sure not to have dropouts or anything else. So it was experiment time...</p><p></p><p>The system used only one pair for signal and one pair for power - so I made two adapter cables - one simple RJ45 to XLR with signal pairs connected to pins 2&3 and power negative on pin 1 - the other adapter was similar plus it had external PSU connected via RJ45.</p><p></p><p>First test - plug the boxes together with my new adapters - NO problem</p><p>Second test - insert 10m mic cable between adapters - NO problem</p><p>Third test - connect my 30m snake between - NO problem</p><p></p><p>So it seemed to work fine - but since in real world things go haywire, when you are running this on important gig, I decided it has to have marginal.</p><p></p><p>Fourth test - put the signal through my snake twice - problems started - intermittent crackling and dropouts</p><p>REMEDY - connect resistor between pins 2&3 on receiving end - experimenting with different values.</p><p></p><p>BINGO - now I can run signal back and forth with 20 meter mic cable added - so total 80 meters without problem.</p><p>Since I intended to use it only on 30 meters, I figure I´ll be safe.</p><p></p><p>Unfortunately I do not remember the value of resistor - but somewhere around 200 ohms should be right.</p><p></p><p>After all this spent money ( about 100,- € ) plus hours of experimentimenting I stumbled across this thread...:lol:</p><p></p><p>Now I have X32 , X32 rack , two S16 , two P16-M and one P16-D </p><p></p><p>What on earth shall I do with my dandy 8-ch digital "snake" :roll:</p><p></p><p>Then talking about cables - I have three fantastic flexible RJ-45 cables, that are from finnish army surplus - I use them for routers and P16-M - always thinking they were CAT - but maybe they are just regular multiwire cable - thus flexible like microphone-cable.</p><p></p><p>Perhaps I have to dig into this deeper - since flexible CAT does not seem to exist.</p></blockquote><p></p>
[QUOTE="Timo Ulkuniemi, post: 107772, member: 1978"] Audio cable for CAT Hello Two years ago I purchased a small unit from Switzerland - it had TOSLINK-input-box and RJ45 connection - plus second box with RJ45 and TOSLINK-out connection. Separate PSU on one end. It was designed to carry 8 channels of audio plus power to second box over ethernet-cable - 100 meters distance. As my snake is 25 channels and I could use extra channels, I decided to try feed 8 channels through snake ch25. My snake is 30 meters long and I wanted to be sure not to have dropouts or anything else. So it was experiment time... The system used only one pair for signal and one pair for power - so I made two adapter cables - one simple RJ45 to XLR with signal pairs connected to pins 2&3 and power negative on pin 1 - the other adapter was similar plus it had external PSU connected via RJ45. First test - plug the boxes together with my new adapters - NO problem Second test - insert 10m mic cable between adapters - NO problem Third test - connect my 30m snake between - NO problem So it seemed to work fine - but since in real world things go haywire, when you are running this on important gig, I decided it has to have marginal. Fourth test - put the signal through my snake twice - problems started - intermittent crackling and dropouts REMEDY - connect resistor between pins 2&3 on receiving end - experimenting with different values. BINGO - now I can run signal back and forth with 20 meter mic cable added - so total 80 meters without problem. Since I intended to use it only on 30 meters, I figure I´ll be safe. Unfortunately I do not remember the value of resistor - but somewhere around 200 ohms should be right. After all this spent money ( about 100,- € ) plus hours of experimentimenting I stumbled across this thread...:lol: Now I have X32 , X32 rack , two S16 , two P16-M and one P16-D What on earth shall I do with my dandy 8-ch digital "snake" :roll: Then talking about cables - I have three fantastic flexible RJ-45 cables, that are from finnish army surplus - I use them for routers and P16-M - always thinking they were CAT - but maybe they are just regular multiwire cable - thus flexible like microphone-cable. Perhaps I have to dig into this deeper - since flexible CAT does not seem to exist. [/QUOTE]
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