Hi All,
I got an ASI6200 back in September.
It worked without any flaws with the following setup:
- ASI6200 and ASI120 connected with 0.5m high quality USB3 cables to a powered USB HUB.
- A high quality passive 3m USB3 cable from the powered HUB to my Raspberry Pi 4.
In December I decided to have the Raspberry Pi sit on the scope. Since then I have encountered major connectivity issues. The setup was:
- ASI6200 and ASI174 (new camera) connected with 1m (also tried with the previous 0.5m cables) high quality USB3 cables to a powered USB HUB.
- A high quality passive 0.3m USB3 cable from the powered HUB to my Raspberry Pi 4.
I have tried everything, including trying another Raspberry Pi, reinstalled OS, used one power supply for each component (ASI6200, Powered USB HUB and RPi).
Also I reverted to the previous setup, but from that point it didn't work anymore either (maybe the ASI174 is causing issues the ASI120 is not)
The only thing that worked was replacing the powered USB HUB with a passive HUB.
As I need power from the previous HUB, I have now two HUBS sitting on the scope, which is not a long term solution for me.
So I have been looking for a replacement HUB. I was using a TP-Link UH720 HUB, which is known for its great compatibility with astronomy gear.
I have spoken with Pegasus Astro, as their Pocket PowerBox Advance would fit my needs.
They explained that there are issues with ZWO cameras because of non-standard implementation of the USB stack, in particular it seems impedance is not adapted like it should.
They think it should work but cannot guarantee it.
I honestly couldn't care less about a partial implementation of the USB stack. The prices are great and I suppose that is one reason for it. But I need it to work.
So are anyone of you using an ASI6200 with a Raspberry Pi? Possibly using a Pegasus astro hub?
Many thanks for your inputs!