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lernerda
professor emeritus
Reged: 01/21/07
Loc: New Jersey 40.0 N 74.9 W
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Powered USB or not?
#3188589 - 06/29/09 11:16 AM
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My eletronic setup includes a laptop w/3 USB 2.0 ports, a Tak EM200(temma PC goto), 2 DSIs, rs232 and autoguider cables. Everything is run by the USB's. Now I KNOW you need the direct USB 2.0 ports for the DSIs (pluged directly into the computer), but here is my question.
I have a 4-port, non-powered USB 1.1 hub... Will this work OK for the Goto and autoguider simutaneously plugged into the third port (maybe a mouse also)? As I said, I know the DSIs need direct 2.0 connections (or a powered USB 2.0 hub), but am I OK with the goto and autoguider ussing a non-powered hub? (it's not like it is sending 5 Mb/sec).
Opinions?
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Mike Clemens
Frozen to Eyepiece
Reged: 11/26/05
Loc: Alaska, USA
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Re: Powered USB or not?
[Re: lernerda]
#3189424 - 06/29/09 05:54 PM
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Didn't work here. I tried a non-powered micro-hub on the scope itself (so I could run a single USB line out to it) but it failed to work and I switched back to a powered hub at the mount. I was using a DSI Pro and an EOS camera at the scope.
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David Pavlich
Transmographied
Reged: 05/18/05
Loc: Mandeville, LA USA
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Re: Powered USB or not?
[Re: Mike Clemens]
#3190722 - 06/30/09 10:55 AM
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Same as Mike. Get a good powered hub and you won't have that part of your electronics to worry about.
David
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scope dog
Pooh-Bah
Reged: 07/26/04
Loc: USA
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Re: Powered USB or not?
[Re: lernerda]
#3191912 - 06/30/09 10:10 PM
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I have a astronomy camera dbk 41 and have a 25 ft run. web page This will work at 3.5 fps and sometimes 7.5, but faster in BW mode. But I tried power hubs on a run but had develope driver issues and also repeaters. The reason this does not work at 15fps is the data flow is bi directional, maybe a ccd camera might be better.
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