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 Post Posted: Tue Dec 20, 2016 3:17 am 
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Joined: Thu Feb 21, 2013 2:51 am
Posts: 2349
David_L wrote:
Sam wrote:
HI Eric
you'd better use the latest FC2.4 beta 05
FC2.2 is too old

usb 2.0 is not wide enough to operate 2 cameras at the same time
and ASI120MM may affect if you plugin the ASI120MC-S at the same time

so you can try connect ASI120MM alone and test

I have run the ASI1600MM Cool, ASI120MC-S and ASI120MC all at the same time through a hub (USB2) in the following configuration
ASI120MC = Guiding and plugged into the ASI1600MM Cool
ASI120MC - S = All Sky Cam mode plugged into the hub
ASI1600MM = plugged into the hub

All three worked perfectly for the entire nights imaging


I haven't been able to get it to work again since :-( The one thing I changed was plugging the all sky cam into the pc instead of the hub - I'm going to retry my original configuration shortly to see if I can get it working again

One note is that I was taking very short exposures with the ASI1600MM (high usb load?) and long exposures with the ASI120's (3 sec in PHD2 and up to 36 sec on the all sky cam)

So it looks like it can work but as Sam says if the usb traffic gets too high maybe that's a problem

Would be cool to get them all working together but not that important


I think one thing very important is that you need to use USB3 to connect the ASI1600 camera
and turndown USB Traffic to lowest of ASI120 and 120S
so 1600 run through USB3.0 and 120 120s share the usb2.0 bandwidth

ZWO Founder
Location:lon=120.6 lat=31.3
SuZhou China

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