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Although I don't possess this unit, I would inspect the ports on the Gemini by employing a PC with the Gemini Telescope Service installed.? I'd ensure a connection to the Gemini-2 and using both USB and Ethernet.? I'd verify the software version and confirm it is current production for the hardware (likely L5.2 I think).? I could also seek input regarding any issues or instructions related to these Gemini-2 tasks.? Knowing that the Gemini responds to USB/Ethernet commands significantly narrows down the uncertainties connecting.

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Then I'd look at reconnecting ASIAIR.? Either kind of connection works equally, but USB is far easier to troubleshoot.? I'd be sure to use the same cables used to test with Gemini Telescope.? And I really don't recall too many questions on connecting with USB to a working Gemin-2 using USB.? I'd make darn sure the USB does not function on Gemini-2 before further exploring Ethernet, even if that were the goal.

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I connect the mount to the ASIAir via the USB-B port in the bottom right of the Gemini panel. I connect the USB-A side of the cable to one of the USB-A v2 ports (black ports) on the ASIAir. I usually boot the mount before booting the ASIAir. I position the mount to the home position prior to booting the Gemini. One "issue" I have always had is that when I command the mount to go to home with the ASIAir it never completes. It does go to home, but I have to cancel the command in the ASIAir after it has reached home. Occasionally if there are issues with the ASIAir and the mount communicating, I will manually position the mount to the home position (DEC and RA levels between the lines) and then do a Cold Restart on the hand controller. That seems to correct most issues. The mount is still new to me, so I am sure there are better ways of doing things that I am not aware of yet.

I use a Gemini 2 G11G with an ASIAir plus over USB without any connection issues. There are other issues, but USB works fine. I have used ethernet, but with NINA on a Windows PC.

On Mon, Oct 28, 2024 at 05:21 AM, Roger Smith wrote:

Hi ASIair users....

This is a reposte in hopes of getting responses related to USB connection. I am helping a friend set up his recently purchased ASIAir Plus and G11G w Gemini2 (which I sold him). He says the ASIair will not recognize the mount via USB. I don't know which cable he is using, and will see him this week.?

So I ask: Is there a proper sequence to startup and get connected and ready to do a Go To. Assume the mount has been levelled and is polar aligned. I always liked Cold Start w CWD:

--- Everything powered off:

--- ASIair physically connected via printer cable to Gemini2 control box.

--- Mount is in CWD position.?

--- ASIair App (on Galaxy S9 turned off)

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If the ASIair will not recognize the USB connection to the mount, then what should I try? Change the power up order?

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When I had the mount, I used Serial to USB with FTDI, and it connected to my laptop nicely. I think there was a FTDI driver. Is this a back up option to try, and still using ASIair (not a PC)?

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Any other option, ie LAN? Many thanks for your advice!

Roger

This is the control box:

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Well for a USB connection I do the same thing as using Ethernet, my tablet or phone should already be turned on then I manually level the mount head using the bubble vials in the mount base then using a level on the CW and saddle or your pre-marked CWD indicators on the mount head.? Then I power up the Gemini 2 and once I get to the top diamond display after power up (this can vary depending on how the Gein 2 is set to boot up) I power up the ASIAIR and wait for the two sets of beeps telling me the ASIAIR has booted and loaded its firmware.? Then I connect the tablet/smartphone Wi-Fi to the ASIAIR SSID and open the ASIAIR app, select the ASIAIR device and make the connection to the app.? The app opens up and should show you all the connected peripherals the ASIAIR can see, the Gemini 2, ZWO imaging camera, ZWO guide camera, ZWO EAF, ZWO EWF etc.? the menus are self explanatory.??

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Hi Wayback,

Thank you for the good advice. I connected the Gemini2 USB to my laptop. Device Manager did not make any change. I tried with 2 different cables. So my conclusion is the Gemini2 must have a broken connection or something fried.?

My next try is going to be the Serial/FTDI/USB cable method. Trying to get the right cable now.

Thanks again for all the other posters' comments and advice.

Roger