iccd1 wrote:
> Hello,
> 
> I am trying to solve an issue with CdC 2.76 not seeing my Celestron 
> GPS 11 when using NexHub (virtual com port hub) and the AIRcable 
> USB/Serial 3 wireless system.  Not sure if the issue is with CdC, 
> NexHub or AIRcable 3, though I suspect the AIRcable 3.
> 
> CdC will work over AIRcable 3 if it is the only program using the 
> assigned com port (com port 4).  It also works with NexHub (Master 
> com port=4, Slave com port=6, CdC assigned to Slave 6) when using a 
> wired USB to Serial connection to the telescope.  CdC does not see 
> the telescope (timesout) when using NexHub and AIRcable 3. Other 
> program such as "NSO Observers List" and "Next Control Pad" work 
> with NexHub and AIRcable 3, though each displays a timout at the end 
> of its hexadecimal line code when observing communications with a 
> serial sniffer.  I have been able to adjust the timeout parameter on 
> NexHub.  NexHub's default timeout is 1 second.  I have adjusted the 
> timeout from 1 to 9 seconds with CdC not seeing the telescope 
> (timesout).
> 
> I was wondering what the timeout configuration is for CdC?  I looked 
> for a config.ini or similar file in CdC but did not see one.

CdC will be using the ASCOM driver for the scope. The timeout is
initially 1 second while it's identifying the scope but is then set to 4
or 5 seconds. It won't cope with timeouts on the serial port while 
connecting.

I wouldn't expect other applications to connect at the same time as CdC 
because the serial port is in use the whole time the scope is connected 
and I wouldn't expect it to connect if other programs have connected first.

Chris

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