Do you feel that 1M of optical or coax digital cable is not long enough? Or is it too long already??? Please let me know and we will see about getting the cable with the "right" length in stock.
If you are interested in Analog Interconnects, you can also post and respond to the poll here too. 🙂
If you are interested in Analog Interconnects, you can also post and respond to the poll here too. 🙂
Regular optical - up to 10m
Quality optical - up to 15m
Coax - don't know but I've been using 10m for my PC-DAC connection and although it works - from time to time DAC generetas failures 🙁
Quality optical - up to 15m
Coax - don't know but I've been using 10m for my PC-DAC connection and although it works - from time to time DAC generetas failures 🙁
Hummm, it is kinda odd that a post from another poster doesn't seem to show up...
Just to let everyone know, I vote for 1M myself 😛
Just to let everyone know, I vote for 1M myself 😛
All new users are moderated until they prove they can behave 🙂 The post won't show up until a moderator approves the post.
Ahhh, I see, I was just a little confused when I see the email notification without seeing anything on the thread.
Thanks
David
I have a 1 m optical cable that is just too short (the cable only just makes it but with the strain the connectors are pulled slightly - intermittent loss of connection), and I can't move the components closer together. Here a 1.5 m length would be great, but I just have never got around to it. Using a coax currently. But for the fibre link, length should not be an issue, unless there is an interaction with the nominal wavelength of 650 nm & the maximum output power of the laser diodes. I have never looked at the standard re the TOSLink interfaces. Will be interesting to know what the limitations and recommended minimum and maximum lengths are.
Kevin
Kevin
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Fibre can be too short, extra modes cause too much light to couple and the receiver overloads with pulse distortion.
1.5 to 2m is about right for general purpose
1.5 to 2m is about right for general purpose
@davidsrsb - exactly. And reflections can occur at the coupling points. Though error correction should cater for that.
P.S. After looking at a brief synopsis of the standard, I see they say that the standard commercial product is a high quality plastic "pipe"; WT*! proper silica/glass is not expensive, and is a much better medium. The plastic material has an extremely high attenuation rate compared to plastic.
P.S. After looking at a brief synopsis of the standard, I see they say that the standard commercial product is a high quality plastic "pipe"; WT*! proper silica/glass is not expensive, and is a much better medium. The plastic material has an extremely high attenuation rate compared to plastic.
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I usually measure the distance between the components to be connected, add a bit of length to allow for routing and have some slack on the connections, and then round up to the closest length interconnect commercially available.
My bad, did not check and then got distracted. Should read "compared to silica/glass."
As long as needed and as short as possible.
Wirth copper cables I start worring above 15m, optical can bei longer, depending on the cable.
BR
Michael
Wirth copper cables I start worring above 15m, optical can bei longer, depending on the cable.
BR
Michael
Each cable has an official spec which you can look up.
TOSLINK I think standard maximum is 5 meters, but that is because of cheap plastic fiber.
Glass can run a long way. Miles with the right GBIC. Don't know if anyone is making SPDIF in glass for long haul. I would bet 50M to be easy.
Don't know the coax length. Just 75 Ohm so I see little reason for it not to be good for 50 meters or so unless the driver is crap.
As you would expect, the longer the cable, the more important for a quality cable. Not some magic "audio crap", just quality. Belden has never let me down for cable.
If your cable is "too short" then it is a design defect with either the electronics. Not saying it can't happen, but it shouldn't. This is why we have standards.
TOSLINK I think standard maximum is 5 meters, but that is because of cheap plastic fiber.
Glass can run a long way. Miles with the right GBIC. Don't know if anyone is making SPDIF in glass for long haul. I would bet 50M to be easy.
Don't know the coax length. Just 75 Ohm so I see little reason for it not to be good for 50 meters or so unless the driver is crap.
As you would expect, the longer the cable, the more important for a quality cable. Not some magic "audio crap", just quality. Belden has never let me down for cable.
If your cable is "too short" then it is a design defect with either the electronics. Not saying it can't happen, but it shouldn't. This is why we have standards.
I did a test with both and found that Toslink does not have the bandwidth needed over longer distances (88Khz instead of 44kHz over SPdif 10m). This could be a problem of the plastic fiber or/and the optical transmitter/receiver. So it depends on the quality of the used components as pro stuff can run 2km over fiber (Single mode) with very high frequency.