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Solved is this the right way from cdpro to teleporter .
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extech  
#1 Posted : Wednesday, July 27, 2016 10:14:03 PM(UTC)
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is this the right way of connecting a cdpro to the teleporter plus output teleporter ?

https://www.dropbox.com/...2000%2010%2019.jpeg?dl=0

thanks, Knut
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extech  
#2 Posted : Saturday, July 30, 2016 4:54:34 PM(UTC)
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because my B2 setup doesn't play music, but works fine without the teleporters.

-there are no crossed cables
-the right 3 data/clock connections are in place
- i use standard cat 5 no crosscable
- power to teleporters is about 6V, onboard regs +\- 3,3V
- a gnd connection is made on the receiver side to metronome
- i tried several earth to gnd connections and gnd directly from cdpro to gnd B2
- dac and chassis have floating earth

I already bought a new pair of teleporters, in case the others are down, but don't want to damage the new ones.
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extech  
#3 Posted : Saturday, July 30, 2016 5:05:27 PM(UTC)
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receiving side, not much to see, bypassed both teleporters to get music,

https://www.dropbox.com/...2019%2001%2048.jpeg?dl=0
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Brian Donegan  
#4 Posted : Monday, August 1, 2016 3:15:20 PM(UTC)
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In your first picture, it looks like you are only sending one side of the LVDS signal over the CAT5 cable.
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extech  
#5 Posted : Monday, August 1, 2016 3:34:11 PM(UTC)
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Hi Brian, thanks for your answer.


2 SCLK O Serial clock
3 WCLK O Word clock (word select)
4 DATA O Data
5 GND O Ground

These are the outputs from the cdpro, the gnd goes the ground row at the input of the teleporter.
The other 3 are departing from the output at the A row. Which one did i miss ?
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Brian Donegan  
#6 Posted : Monday, August 1, 2016 6:28:24 PM(UTC)
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The B row. the output of the Teleporter is an LVDS signal for each channel. As a differential signal, you need two halves (+ and -). You need to connect each twisted pair of the Cat5 to the A/B pairs of outputs. Without that, the receiver is not receiving an LVDS signal, and won't be able to reconstruct the single ended I2S data.
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extech  
#7 Posted : Monday, August 1, 2016 6:55:06 PM(UTC)
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AHA ! I will try this out tomorrow, was thinking too analog.
I'm curious what it does to the sound because now the i2s line is about 50cm.

Have a good day Brian !
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Brian Donegan  
#8 Posted : Monday, August 1, 2016 6:59:51 PM(UTC)
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Well, the odea is you keep the I2S lines as short as possible, and add needed length to the Cat5 cable instead. :)
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extech  
#9 Posted : Wednesday, August 3, 2016 8:21:51 AM(UTC)
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problem : SOLVED !


🔝. ✔️. 🔊. 🔉. 💿. 📀 🎼. 🎵. 🎶. 😎

Edited by moderator Friday, August 5, 2016 5:18:14 PM(UTC)  | Reason: Not specified
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Russ White  
#10 Posted : Saturday, August 13, 2016 6:06:29 PM(UTC)
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Excellent! :)
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