Cartes losing scope connection #5936047 - 06/23/13 09:23 AM
Anyone have this problem with Cartes du Ciel losing the connection with the Celestron scope? Been happening all the time now and never before? The only change I made was a different USB hub at the scope. Could this have made such a difference? I am using a prolific chipset USB-rs232 dongle.
P.S. This is 4 repeater hub USB2.0 chain. So 20m + 2 5m non repeater segments, for total distance of about ~80ft. If my camera dropped out, then I would say its the length of the chained cables... but it does not. Just the CdC connection...
Re: Cartes losing scope connection
[Re: A. Viegas]
#5936067 - 06/23/13 09:41 AM
Simple, it's the Prolific dongle.
I've got one and it's OK when it's connected directly to a USB port on the PC and using a short RS232 cable BUT once you use a longer RS232 cable or connect through hubs and repeaters it gets very unreliable.